d59d90bb1f
Summary: This is part of an effort to better understand and optimize RocksDB stalls under high load. I added a feature to db_bench to periodically write QPS to CSV files. That way we can nicely see how our QPS changes in time (especially when DB is stalled) and can do a better job of evaluating our stall system (i.e. we want the QPS to be as constant as possible, as opposed to having bunch of stalls) Cool part of CSV files is that we can easily graph them -- there are a bunch of tools available. Test Plan: Ran ./db_bench --report_interval_seconds=10 --benchmarks=fillrandom --num=10000000 and observed this in report.csv: secs_elapsed,interval_qps 10,2725860 20,1980480 30,1863456 40,1454359 50,1460389 Reviewers: sdong, MarkCallaghan, rven, yhchiang Reviewed By: yhchiang Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D40047
3847 lines
132 KiB
C++
3847 lines
132 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#ifndef __STDC_FORMAT_MACROS
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#define __STDC_FORMAT_MACROS
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#endif
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#ifndef GFLAGS
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#include <cstdio>
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int main() {
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fprintf(stderr, "Please install gflags to run rocksdb tools\n");
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return 1;
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}
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#else
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#ifdef NUMA
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#include <numa.h>
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#include <numaif.h>
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#endif
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#include <unistd.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <cstddef>
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <gflags/gflags.h>
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#include <atomic>
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#include <condition_variable>
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#include <mutex>
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#include <thread>
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#include "db/db_impl.h"
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#include "db/version_set.h"
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#include "rocksdb/options.h"
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#include "rocksdb/cache.h"
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#include "rocksdb/db.h"
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#include "rocksdb/env.h"
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#include "rocksdb/memtablerep.h"
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#include "rocksdb/write_batch.h"
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#include "rocksdb/slice.h"
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#include "rocksdb/filter_policy.h"
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#include "rocksdb/rate_limiter.h"
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#include "rocksdb/slice_transform.h"
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#include "rocksdb/perf_context.h"
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#include "rocksdb/utilities/flashcache.h"
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#include "rocksdb/utilities/optimistic_transaction.h"
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#include "rocksdb/utilities/optimistic_transaction_db.h"
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#include "port/port.h"
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#include "port/stack_trace.h"
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#include "util/crc32c.h"
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#include "util/compression.h"
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#include "util/histogram.h"
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#include "util/mutexlock.h"
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#include "util/random.h"
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#include "util/string_util.h"
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#include "util/statistics.h"
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#include "util/testutil.h"
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#include "util/xxhash.h"
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#include "hdfs/env_hdfs.h"
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#include "utilities/merge_operators.h"
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using GFLAGS::ParseCommandLineFlags;
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using GFLAGS::RegisterFlagValidator;
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using GFLAGS::SetUsageMessage;
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DEFINE_string(benchmarks,
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"fillseq,"
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"fillsync,"
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"fillrandom,"
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"overwrite,"
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"readrandom,"
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"newiterator,"
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"newiteratorwhilewriting,"
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"seekrandom,"
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"seekrandomwhilewriting,"
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"seekrandomwhilemerging,"
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"readseq,"
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"readreverse,"
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"compact,"
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"readrandom,"
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"multireadrandom,"
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"readseq,"
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"readtocache,"
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"readreverse,"
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"readwhilewriting,"
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"readwhilemerging,"
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"readrandomwriterandom,"
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"updaterandom,"
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"randomwithverify,"
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"fill100K,"
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"crc32c,"
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"xxhash,"
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"compress,"
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"uncompress,"
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"acquireload,"
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"fillseekseq,"
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"randomtransaction",
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"Comma-separated list of operations to run in the specified order"
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"Actual benchmarks:\n"
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"\tfillseq -- write N values in sequential key"
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" order in async mode\n"
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"\tfillrandom -- write N values in random key order in async"
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" mode\n"
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"\toverwrite -- overwrite N values in random key order in"
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" async mode\n"
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"\tfillsync -- write N/100 values in random key order in "
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"sync mode\n"
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"\tfill100K -- write N/1000 100K values in random order in"
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" async mode\n"
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"\tdeleteseq -- delete N keys in sequential order\n"
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"\tdeleterandom -- delete N keys in random order\n"
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"\treadseq -- read N times sequentially\n"
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"\treadtocache -- 1 thread reading database sequentially\n"
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"\treadreverse -- read N times in reverse order\n"
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"\treadrandom -- read N times in random order\n"
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"\treadmissing -- read N missing keys in random order\n"
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"\treadhot -- read N times in random order from 1% section "
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"of DB\n"
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"\treadwhilewriting -- 1 writer, N threads doing random "
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"reads\n"
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"\treadwhilemerging -- 1 merger, N threads doing random "
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"reads\n"
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"\treadrandomwriterandom -- N threads doing random-read, "
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"random-write\n"
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"\tprefixscanrandom -- prefix scan N times in random order\n"
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"\tupdaterandom -- N threads doing read-modify-write for random "
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"keys\n"
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"\tappendrandom -- N threads doing read-modify-write with "
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"growing values\n"
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"\tmergerandom -- same as updaterandom/appendrandom using merge"
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" operator. "
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"Must be used with merge_operator\n"
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"\treadrandommergerandom -- perform N random read-or-merge "
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"operations. Must be used with merge_operator\n"
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"\tnewiterator -- repeated iterator creation\n"
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"\tseekrandom -- N random seeks, call Next seek_nexts times "
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"per seek\n"
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"\tseekrandomwhilewriting -- seekrandom and 1 thread doing "
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"overwrite\n"
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"\tseekrandomwhilemerging -- seekrandom and 1 thread doing "
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"merge\n"
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"\tcrc32c -- repeated crc32c of 4K of data\n"
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"\txxhash -- repeated xxHash of 4K of data\n"
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"\tacquireload -- load N*1000 times\n"
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"\tfillseekseq -- write N values in sequential key, then read "
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"them by seeking to each key\n"
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"\trandomtransaction -- execute N random transactions and "
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"verify correctness\n"
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"Meta operations:\n"
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"\tcompact -- Compact the entire DB\n"
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"\tstats -- Print DB stats\n"
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"\tlevelstats -- Print the number of files and bytes per level\n"
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"\tsstables -- Print sstable info\n"
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"\theapprofile -- Dump a heap profile (if supported by this"
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" port)\n");
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DEFINE_int64(num, 1000000, "Number of key/values to place in database");
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DEFINE_int64(numdistinct, 1000,
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"Number of distinct keys to use. Used in RandomWithVerify to "
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"read/write on fewer keys so that gets are more likely to find the"
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" key and puts are more likely to update the same key");
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DEFINE_int64(merge_keys, -1,
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"Number of distinct keys to use for MergeRandom and "
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"ReadRandomMergeRandom. "
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"If negative, there will be FLAGS_num keys.");
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DEFINE_int32(num_column_families, 1, "Number of Column Families to use.");
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DEFINE_int32(
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num_hot_column_families, 0,
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"Number of Hot Column Families. If more than 0, only write to this "
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"number of column families. After finishing all the writes to them, "
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"create new set of column families and insert to them. Only used "
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"when num_column_families > 1.");
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DEFINE_int64(reads, -1, "Number of read operations to do. "
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"If negative, do FLAGS_num reads.");
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DEFINE_int32(bloom_locality, 0, "Control bloom filter probes locality");
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DEFINE_int64(seed, 0, "Seed base for random number generators. "
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"When 0 it is deterministic.");
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DEFINE_int32(threads, 1, "Number of concurrent threads to run.");
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DEFINE_int32(duration, 0, "Time in seconds for the random-ops tests to run."
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" When 0 then num & reads determine the test duration");
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DEFINE_int32(value_size, 100, "Size of each value");
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DEFINE_int32(seek_nexts, 0,
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"How many times to call Next() after Seek() in "
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"fillseekseq, seekrandom, seekrandomwhilewriting and "
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"seekrandomwhilemerging");
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DEFINE_bool(reverse_iterator, false,
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"When true use Prev rather than Next for iterators that do "
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"Seek and then Next");
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DEFINE_bool(use_uint64_comparator, false, "use Uint64 user comparator");
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DEFINE_int64(batch_size, 1, "Batch size");
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static bool ValidateKeySize(const char* flagname, int32_t value) {
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return true;
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}
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DEFINE_int32(key_size, 16, "size of each key");
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DEFINE_int32(num_multi_db, 0,
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"Number of DBs used in the benchmark. 0 means single DB.");
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DEFINE_double(compression_ratio, 0.5, "Arrange to generate values that shrink"
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" to this fraction of their original size after compression");
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DEFINE_double(read_random_exp_range, 0.0,
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"Read random's key will be generated using distribution of "
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"num * exp(r) where r is uniform number from 0 to this value. "
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"The larger the number is, the more skewed the reads are. "
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"Only used in readrandom and multireadrandom benchmarks.");
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DEFINE_bool(histogram, false, "Print histogram of operation timings");
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DEFINE_bool(enable_numa, false,
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"Make operations aware of NUMA architecture and bind memory "
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"and cpus corresponding to nodes together. In NUMA, memory "
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"in same node as CPUs are closer when compared to memory in "
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"other nodes. Reads can be faster when the process is bound to "
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"CPU and memory of same node. Use \"$numactl --hardware\" command "
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"to see NUMA memory architecture.");
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DEFINE_int64(db_write_buffer_size, rocksdb::Options().db_write_buffer_size,
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"Number of bytes to buffer in all memtables before compacting");
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DEFINE_int64(write_buffer_size, rocksdb::Options().write_buffer_size,
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"Number of bytes to buffer in memtable before compacting");
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DEFINE_int32(max_write_buffer_number,
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rocksdb::Options().max_write_buffer_number,
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"The number of in-memory memtables. Each memtable is of size"
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"write_buffer_size.");
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DEFINE_int32(min_write_buffer_number_to_merge,
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rocksdb::Options().min_write_buffer_number_to_merge,
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"The minimum number of write buffers that will be merged together"
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"before writing to storage. This is cheap because it is an"
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"in-memory merge. If this feature is not enabled, then all these"
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"write buffers are flushed to L0 as separate files and this "
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"increases read amplification because a get request has to check"
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" in all of these files. Also, an in-memory merge may result in"
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" writing less data to storage if there are duplicate records "
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" in each of these individual write buffers.");
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DEFINE_int32(max_write_buffer_number_to_maintain,
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rocksdb::Options().max_write_buffer_number_to_maintain,
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"The total maximum number of write buffers to maintain in memory "
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"including copies of buffers that have already been flushed. "
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"Unlike max_write_buffer_number, this parameter does not affect "
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"flushing. This controls the minimum amount of write history "
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"that will be available in memory for conflict checking when "
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"Transactions are used. If this value is too low, some "
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"transactions may fail at commit time due to not being able to "
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"determine whether there were any write conflicts. Setting this "
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"value to 0 will cause write buffers to be freed immediately "
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"after they are flushed. If this value is set to -1, "
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"'max_write_buffer_number' will be used.");
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DEFINE_int32(max_background_compactions,
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rocksdb::Options().max_background_compactions,
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"The maximum number of concurrent background compactions"
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" that can occur in parallel.");
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DEFINE_int32(max_background_flushes,
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rocksdb::Options().max_background_flushes,
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"The maximum number of concurrent background flushes"
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" that can occur in parallel.");
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static rocksdb::CompactionStyle FLAGS_compaction_style_e;
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DEFINE_int32(compaction_style, (int32_t) rocksdb::Options().compaction_style,
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"style of compaction: level-based vs universal");
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DEFINE_int32(universal_size_ratio, 0,
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"Percentage flexibility while comparing file size"
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" (for universal compaction only).");
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DEFINE_int32(universal_min_merge_width, 0, "The minimum number of files in a"
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" single compaction run (for universal compaction only).");
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DEFINE_int32(universal_max_merge_width, 0, "The max number of files to compact"
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" in universal style compaction");
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DEFINE_int32(universal_max_size_amplification_percent, 0,
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"The max size amplification for universal style compaction");
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DEFINE_int32(universal_compression_size_percent, -1,
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"The percentage of the database to compress for universal "
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"compaction. -1 means compress everything.");
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DEFINE_int64(cache_size, -1, "Number of bytes to use as a cache of uncompressed"
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"data. Negative means use default settings.");
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DEFINE_int32(block_size,
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static_cast<int32_t>(rocksdb::BlockBasedTableOptions().block_size),
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"Number of bytes in a block.");
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DEFINE_int32(block_restart_interval,
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rocksdb::BlockBasedTableOptions().block_restart_interval,
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"Number of keys between restart points "
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"for delta encoding of keys.");
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DEFINE_int64(compressed_cache_size, -1,
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"Number of bytes to use as a cache of compressed data.");
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DEFINE_int32(open_files, rocksdb::Options().max_open_files,
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"Maximum number of files to keep open at the same time"
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" (use default if == 0)");
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DEFINE_int32(bloom_bits, -1, "Bloom filter bits per key. Negative means"
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" use default settings.");
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DEFINE_int32(memtable_bloom_bits, 0, "Bloom filter bits per key for memtable. "
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"Negative means no bloom filter.");
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DEFINE_bool(use_existing_db, false, "If true, do not destroy the existing"
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" database. If you set this flag and also specify a benchmark that"
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" wants a fresh database, that benchmark will fail.");
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DEFINE_string(db, "", "Use the db with the following name.");
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static bool ValidateCacheNumshardbits(const char* flagname, int32_t value) {
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if (value >= 20) {
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fprintf(stderr, "Invalid value for --%s: %d, must be < 20\n",
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flagname, value);
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return false;
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}
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return true;
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}
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DEFINE_int32(cache_numshardbits, -1, "Number of shards for the block cache"
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" is 2 ** cache_numshardbits. Negative means use default settings."
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" This is applied only if FLAGS_cache_size is non-negative.");
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DEFINE_bool(verify_checksum, false, "Verify checksum for every block read"
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" from storage");
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DEFINE_bool(statistics, false, "Database statistics");
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static class std::shared_ptr<rocksdb::Statistics> dbstats;
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DEFINE_int64(writes, -1, "Number of write operations to do. If negative, do"
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" --num reads.");
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DEFINE_int32(writes_per_second, 0, "Per-thread rate limit on writes and merges "
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" per second. No limit when <= 0. Only for the readwhilewriting "
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" and readwhilemerging tests.");
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DEFINE_bool(sync, false, "Sync all writes to disk");
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DEFINE_bool(disable_data_sync, false, "If true, do not wait until data is"
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" synced to disk.");
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DEFINE_bool(use_fsync, false, "If true, issue fsync instead of fdatasync");
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DEFINE_bool(disable_wal, false, "If true, do not write WAL for write.");
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DEFINE_string(wal_dir, "", "If not empty, use the given dir for WAL");
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DEFINE_int32(num_levels, 7, "The total number of levels");
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DEFINE_int64(target_file_size_base, 2 * 1048576, "Target file size at level-1");
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DEFINE_int32(target_file_size_multiplier, 1,
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"A multiplier to compute target level-N file size (N >= 2)");
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DEFINE_uint64(max_bytes_for_level_base, 10 * 1048576, "Max bytes for level-1");
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DEFINE_bool(level_compaction_dynamic_level_bytes, false,
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"Whether level size base is dynamic");
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DEFINE_int32(max_bytes_for_level_multiplier, 10,
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"A multiplier to compute max bytes for level-N (N >= 2)");
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static std::vector<int> FLAGS_max_bytes_for_level_multiplier_additional_v;
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DEFINE_string(max_bytes_for_level_multiplier_additional, "",
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"A vector that specifies additional fanout per level");
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DEFINE_int32(level0_stop_writes_trigger,
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rocksdb::Options().level0_stop_writes_trigger,
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"Number of files in level-0"
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" that will trigger put stop.");
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DEFINE_int32(level0_slowdown_writes_trigger,
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rocksdb::Options().level0_slowdown_writes_trigger,
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"Number of files in level-0"
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" that will slow down writes.");
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DEFINE_int32(level0_file_num_compaction_trigger,
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rocksdb::Options().level0_file_num_compaction_trigger,
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"Number of files in level-0"
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" when compactions start");
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static bool ValidateInt32Percent(const char* flagname, int32_t value) {
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if (value <= 0 || value>=100) {
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fprintf(stderr, "Invalid value for --%s: %d, 0< pct <100 \n",
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flagname, value);
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return false;
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}
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return true;
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}
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DEFINE_int32(readwritepercent, 90, "Ratio of reads to reads/writes (expressed"
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" as percentage) for the ReadRandomWriteRandom workload. The "
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"default value 90 means 90% operations out of all reads and writes"
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" operations are reads. In other words, 9 gets for every 1 put.");
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DEFINE_int32(mergereadpercent, 70, "Ratio of merges to merges&reads (expressed"
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" as percentage) for the ReadRandomMergeRandom workload. The"
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" default value 70 means 70% out of all read and merge operations"
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" are merges. In other words, 7 merges for every 3 gets.");
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DEFINE_int32(deletepercent, 2, "Percentage of deletes out of reads/writes/"
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"deletes (used in RandomWithVerify only). RandomWithVerify "
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"calculates writepercent as (100 - FLAGS_readwritepercent - "
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"deletepercent), so deletepercent must be smaller than (100 - "
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"FLAGS_readwritepercent)");
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DEFINE_uint64(delete_obsolete_files_period_micros, 0,
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"Ignored. Left here for backward compatibility");
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DEFINE_bool(transaction_db, false,
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"Open a OptimisticTransactionDB instance. "
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"Required for randomtransaction benchmark.");
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DEFINE_uint64(transaction_sets, 2,
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"Number of keys each transaction will "
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"modify (use in RandomTransaction only). Max: 9999");
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DEFINE_int32(transaction_sleep, 0,
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"Max microseconds to sleep in between "
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"reading and writing a value (used in RandomTransaction only). ");
|
|
|
|
namespace {
|
|
enum rocksdb::CompressionType StringToCompressionType(const char* ctype) {
|
|
assert(ctype);
|
|
|
|
if (!strcasecmp(ctype, "none"))
|
|
return rocksdb::kNoCompression;
|
|
else if (!strcasecmp(ctype, "snappy"))
|
|
return rocksdb::kSnappyCompression;
|
|
else if (!strcasecmp(ctype, "zlib"))
|
|
return rocksdb::kZlibCompression;
|
|
else if (!strcasecmp(ctype, "bzip2"))
|
|
return rocksdb::kBZip2Compression;
|
|
else if (!strcasecmp(ctype, "lz4"))
|
|
return rocksdb::kLZ4Compression;
|
|
else if (!strcasecmp(ctype, "lz4hc"))
|
|
return rocksdb::kLZ4HCCompression;
|
|
|
|
fprintf(stdout, "Cannot parse compression type '%s'\n", ctype);
|
|
return rocksdb::kSnappyCompression; //default value
|
|
}
|
|
|
|
std::string ColumnFamilyName(size_t i) {
|
|
if (i == 0) {
|
|
return rocksdb::kDefaultColumnFamilyName;
|
|
} else {
|
|
char name[100];
|
|
snprintf(name, sizeof(name), "column_family_name_%06zu", i);
|
|
return std::string(name);
|
|
}
|
|
}
|
|
} // namespace
|
|
|
|
DEFINE_string(compression_type, "snappy",
|
|
"Algorithm to use to compress the database");
|
|
static enum rocksdb::CompressionType FLAGS_compression_type_e =
|
|
rocksdb::kSnappyCompression;
|
|
|
|
DEFINE_int32(compression_level, -1,
|
|
"Compression level. For zlib this should be -1 for the "
|
|
"default level, or between 0 and 9.");
|
|
|
|
static bool ValidateCompressionLevel(const char* flagname, int32_t value) {
|
|
if (value < -1 || value > 9) {
|
|
fprintf(stderr, "Invalid value for --%s: %d, must be between -1 and 9\n",
|
|
flagname, value);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static const bool FLAGS_compression_level_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_compression_level, &ValidateCompressionLevel);
|
|
|
|
DEFINE_int32(min_level_to_compress, -1, "If non-negative, compression starts"
|
|
" from this level. Levels with number < min_level_to_compress are"
|
|
" not compressed. Otherwise, apply compression_type to "
|
|
"all levels.");
|
|
|
|
static bool ValidateTableCacheNumshardbits(const char* flagname,
|
|
int32_t value) {
|
|
if (0 >= value || value > 20) {
|
|
fprintf(stderr, "Invalid value for --%s: %d, must be 0 < val <= 20\n",
|
|
flagname, value);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
DEFINE_int32(table_cache_numshardbits, 4, "");
|
|
|
|
DEFINE_string(hdfs, "", "Name of hdfs environment");
|
|
// posix or hdfs environment
|
|
static rocksdb::Env* FLAGS_env = rocksdb::Env::Default();
|
|
|
|
DEFINE_int64(stats_interval, 0, "Stats are reported every N operations when "
|
|
"this is greater than zero. When 0 the interval grows over time.");
|
|
|
|
DEFINE_int64(stats_interval_seconds, 0, "Report stats every N seconds. This "
|
|
"overrides stats_interval when both are > 0.");
|
|
|
|
DEFINE_int32(stats_per_interval, 0, "Reports additional stats per interval when"
|
|
" this is greater than 0.");
|
|
|
|
DEFINE_int64(report_interval_seconds, 0,
|
|
"If greater than zero, it will write simple stats in CVS format "
|
|
"to --report_file every N seconds");
|
|
|
|
DEFINE_string(report_file, "report.csv",
|
|
"Filename where some simple stats are reported to (if "
|
|
"--report_interval_seconds is bigger than 0)");
|
|
|
|
DEFINE_int32(thread_status_per_interval, 0,
|
|
"Takes and report a snapshot of the current status of each thread"
|
|
" when this is greater than 0.");
|
|
|
|
DEFINE_int32(perf_level, 0, "Level of perf collection");
|
|
|
|
static bool ValidateRateLimit(const char* flagname, double value) {
|
|
static constexpr double EPSILON = 1e-10;
|
|
if ( value < -EPSILON ) {
|
|
fprintf(stderr, "Invalid value for --%s: %12.6f, must be >= 0.0\n",
|
|
flagname, value);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
DEFINE_double(soft_rate_limit, 0.0, "");
|
|
|
|
DEFINE_double(hard_rate_limit, 0.0, "When not equal to 0 this make threads "
|
|
"sleep at each stats reporting interval until the compaction"
|
|
" score for all levels is less than or equal to this value.");
|
|
|
|
DEFINE_uint64(delayed_write_rate, 2097152u,
|
|
"Limited bytes allowed to DB when soft_rate_limit or "
|
|
"level0_slowdown_writes_trigger triggers");
|
|
|
|
DEFINE_int32(rate_limit_delay_max_milliseconds, 1000,
|
|
"When hard_rate_limit is set then this is the max time a put will"
|
|
" be stalled.");
|
|
|
|
DEFINE_uint64(rate_limiter_bytes_per_sec, 0, "Set options.rate_limiter value.");
|
|
|
|
DEFINE_int32(max_grandparent_overlap_factor, 10, "Control maximum bytes of "
|
|
"overlaps in grandparent (i.e., level+2) before we stop building a"
|
|
" single file in a level->level+1 compaction.");
|
|
|
|
DEFINE_bool(readonly, false, "Run read only benchmarks.");
|
|
|
|
DEFINE_bool(disable_auto_compactions, false, "Do not auto trigger compactions");
|
|
|
|
DEFINE_int32(source_compaction_factor, 1, "Cap the size of data in level-K for"
|
|
" a compaction run that compacts Level-K with Level-(K+1) (for"
|
|
" K >= 1)");
|
|
|
|
DEFINE_uint64(wal_ttl_seconds, 0, "Set the TTL for the WAL Files in seconds.");
|
|
DEFINE_uint64(wal_size_limit_MB, 0, "Set the size limit for the WAL Files"
|
|
" in MB.");
|
|
DEFINE_uint64(max_total_wal_size, 0, "Set total max WAL size");
|
|
|
|
DEFINE_bool(bufferedio, rocksdb::EnvOptions().use_os_buffer,
|
|
"Allow buffered io using OS buffers");
|
|
|
|
DEFINE_bool(mmap_read, rocksdb::EnvOptions().use_mmap_reads,
|
|
"Allow reads to occur via mmap-ing files");
|
|
|
|
DEFINE_bool(mmap_write, rocksdb::EnvOptions().use_mmap_writes,
|
|
"Allow writes to occur via mmap-ing files");
|
|
|
|
DEFINE_bool(advise_random_on_open, rocksdb::Options().advise_random_on_open,
|
|
"Advise random access on table file open");
|
|
|
|
DEFINE_string(compaction_fadvice, "NORMAL",
|
|
"Access pattern advice when a file is compacted");
|
|
static auto FLAGS_compaction_fadvice_e =
|
|
rocksdb::Options().access_hint_on_compaction_start;
|
|
|
|
DEFINE_bool(disable_flashcache_for_background_threads, false,
|
|
"Disable flashcache for background threads");
|
|
|
|
DEFINE_string(flashcache_dev, "", "Path to flashcache device");
|
|
|
|
DEFINE_bool(use_tailing_iterator, false,
|
|
"Use tailing iterator to access a series of keys instead of get");
|
|
|
|
DEFINE_bool(use_adaptive_mutex, rocksdb::Options().use_adaptive_mutex,
|
|
"Use adaptive mutex");
|
|
|
|
DEFINE_uint64(bytes_per_sync, rocksdb::Options().bytes_per_sync,
|
|
"Allows OS to incrementally sync SST files to disk while they are"
|
|
" being written, in the background. Issue one request for every"
|
|
" bytes_per_sync written. 0 turns it off.");
|
|
|
|
DEFINE_uint64(wal_bytes_per_sync, rocksdb::Options().wal_bytes_per_sync,
|
|
"Allows OS to incrementally sync WAL files to disk while they are"
|
|
" being written, in the background. Issue one request for every"
|
|
" wal_bytes_per_sync written. 0 turns it off.");
|
|
|
|
DEFINE_bool(filter_deletes, false, " On true, deletes use bloom-filter and drop"
|
|
" the delete if key not present");
|
|
|
|
DEFINE_int32(max_successive_merges, 0, "Maximum number of successive merge"
|
|
" operations on a key in the memtable");
|
|
|
|
static bool ValidatePrefixSize(const char* flagname, int32_t value) {
|
|
if (value < 0 || value>=2000000000) {
|
|
fprintf(stderr, "Invalid value for --%s: %d. 0<= PrefixSize <=2000000000\n",
|
|
flagname, value);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
DEFINE_int32(prefix_size, 0, "control the prefix size for HashSkipList and "
|
|
"plain table");
|
|
DEFINE_int64(keys_per_prefix, 0, "control average number of keys generated "
|
|
"per prefix, 0 means no special handling of the prefix, "
|
|
"i.e. use the prefix comes with the generated random number.");
|
|
DEFINE_bool(enable_io_prio, false, "Lower the background flush/compaction "
|
|
"threads' IO priority");
|
|
DEFINE_bool(identity_as_first_hash, false, "the first hash function of cuckoo "
|
|
"table becomes an identity function. This is only valid when key "
|
|
"is 8 bytes");
|
|
|
|
enum PutOrMerge {
|
|
kPut,
|
|
kMerge
|
|
};
|
|
|
|
enum RepFactory {
|
|
kSkipList,
|
|
kPrefixHash,
|
|
kVectorRep,
|
|
kHashLinkedList,
|
|
kCuckoo
|
|
};
|
|
|
|
namespace {
|
|
enum RepFactory StringToRepFactory(const char* ctype) {
|
|
assert(ctype);
|
|
|
|
if (!strcasecmp(ctype, "skip_list"))
|
|
return kSkipList;
|
|
else if (!strcasecmp(ctype, "prefix_hash"))
|
|
return kPrefixHash;
|
|
else if (!strcasecmp(ctype, "vector"))
|
|
return kVectorRep;
|
|
else if (!strcasecmp(ctype, "hash_linkedlist"))
|
|
return kHashLinkedList;
|
|
else if (!strcasecmp(ctype, "cuckoo"))
|
|
return kCuckoo;
|
|
|
|
fprintf(stdout, "Cannot parse memreptable %s\n", ctype);
|
|
return kSkipList;
|
|
}
|
|
} // namespace
|
|
|
|
static enum RepFactory FLAGS_rep_factory;
|
|
DEFINE_string(memtablerep, "skip_list", "");
|
|
DEFINE_int64(hash_bucket_count, 1024 * 1024, "hash bucket count");
|
|
DEFINE_bool(use_plain_table, false, "if use plain table "
|
|
"instead of block-based table format");
|
|
DEFINE_bool(use_cuckoo_table, false, "if use cuckoo table format");
|
|
DEFINE_double(cuckoo_hash_ratio, 0.9, "Hash ratio for Cuckoo SST table.");
|
|
DEFINE_bool(use_hash_search, false, "if use kHashSearch "
|
|
"instead of kBinarySearch. "
|
|
"This is valid if only we use BlockTable");
|
|
DEFINE_bool(use_block_based_filter, false, "if use kBlockBasedFilter "
|
|
"instead of kFullFilter for filter block. "
|
|
"This is valid if only we use BlockTable");
|
|
DEFINE_string(merge_operator, "", "The merge operator to use with the database."
|
|
"If a new merge operator is specified, be sure to use fresh"
|
|
" database The possible merge operators are defined in"
|
|
" utilities/merge_operators.h");
|
|
DEFINE_int32(skip_list_lookahead, 0, "Used with skip_list memtablerep; try "
|
|
"linear search first for this many steps from the previous "
|
|
"position");
|
|
DEFINE_bool(report_file_operations, false, "if report number of file "
|
|
"operations");
|
|
|
|
static const bool FLAGS_soft_rate_limit_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_soft_rate_limit, &ValidateRateLimit);
|
|
|
|
static const bool FLAGS_hard_rate_limit_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_hard_rate_limit, &ValidateRateLimit);
|
|
|
|
static const bool FLAGS_prefix_size_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_prefix_size, &ValidatePrefixSize);
|
|
|
|
static const bool FLAGS_key_size_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_key_size, &ValidateKeySize);
|
|
|
|
static const bool FLAGS_cache_numshardbits_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_cache_numshardbits,
|
|
&ValidateCacheNumshardbits);
|
|
|
|
static const bool FLAGS_readwritepercent_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_readwritepercent, &ValidateInt32Percent);
|
|
|
|
DEFINE_int32(disable_seek_compaction, false,
|
|
"Not used, left here for backwards compatibility");
|
|
|
|
static const bool FLAGS_deletepercent_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_deletepercent, &ValidateInt32Percent);
|
|
static const bool FLAGS_table_cache_numshardbits_dummy __attribute__((unused)) =
|
|
RegisterFlagValidator(&FLAGS_table_cache_numshardbits,
|
|
&ValidateTableCacheNumshardbits);
|
|
|
|
namespace rocksdb {
|
|
|
|
namespace {
|
|
struct ReportFileOpCounters {
|
|
std::atomic<int> open_counter_;
|
|
std::atomic<int> read_counter_;
|
|
std::atomic<int> append_counter_;
|
|
std::atomic<uint64_t> bytes_read_;
|
|
std::atomic<uint64_t> bytes_written_;
|
|
};
|
|
|
|
// A special Env to records and report file operations in db_bench
|
|
class ReportFileOpEnv : public EnvWrapper {
|
|
public:
|
|
explicit ReportFileOpEnv(Env* base) : EnvWrapper(base) { reset(); }
|
|
|
|
void reset() {
|
|
counters_.open_counter_ = 0;
|
|
counters_.read_counter_ = 0;
|
|
counters_.append_counter_ = 0;
|
|
counters_.bytes_read_ = 0;
|
|
counters_.bytes_written_ = 0;
|
|
}
|
|
|
|
Status NewSequentialFile(const std::string& f, unique_ptr<SequentialFile>* r,
|
|
const EnvOptions& soptions) override {
|
|
class CountingFile : public SequentialFile {
|
|
private:
|
|
unique_ptr<SequentialFile> target_;
|
|
ReportFileOpCounters* counters_;
|
|
|
|
public:
|
|
CountingFile(unique_ptr<SequentialFile>&& target,
|
|
ReportFileOpCounters* counters)
|
|
: target_(std::move(target)), counters_(counters) {}
|
|
|
|
virtual Status Read(size_t n, Slice* result, char* scratch) override {
|
|
counters_->read_counter_.fetch_add(1, std::memory_order_relaxed);
|
|
Status rv = target_->Read(n, result, scratch);
|
|
counters_->bytes_read_.fetch_add(result->size(),
|
|
std::memory_order_relaxed);
|
|
return rv;
|
|
}
|
|
|
|
virtual Status Skip(uint64_t n) override { return target_->Skip(n); }
|
|
};
|
|
|
|
Status s = target()->NewSequentialFile(f, r, soptions);
|
|
if (s.ok()) {
|
|
counters()->open_counter_.fetch_add(1, std::memory_order_relaxed);
|
|
r->reset(new CountingFile(std::move(*r), counters()));
|
|
}
|
|
return s;
|
|
}
|
|
|
|
Status NewRandomAccessFile(const std::string& f,
|
|
unique_ptr<RandomAccessFile>* r,
|
|
const EnvOptions& soptions) override {
|
|
class CountingFile : public RandomAccessFile {
|
|
private:
|
|
unique_ptr<RandomAccessFile> target_;
|
|
ReportFileOpCounters* counters_;
|
|
|
|
public:
|
|
CountingFile(unique_ptr<RandomAccessFile>&& target,
|
|
ReportFileOpCounters* counters)
|
|
: target_(std::move(target)), counters_(counters) {}
|
|
virtual Status Read(uint64_t offset, size_t n, Slice* result,
|
|
char* scratch) const override {
|
|
counters_->read_counter_.fetch_add(1, std::memory_order_relaxed);
|
|
Status rv = target_->Read(offset, n, result, scratch);
|
|
counters_->bytes_read_.fetch_add(result->size(),
|
|
std::memory_order_relaxed);
|
|
return rv;
|
|
}
|
|
};
|
|
|
|
Status s = target()->NewRandomAccessFile(f, r, soptions);
|
|
if (s.ok()) {
|
|
counters()->open_counter_.fetch_add(1, std::memory_order_relaxed);
|
|
r->reset(new CountingFile(std::move(*r), counters()));
|
|
}
|
|
return s;
|
|
}
|
|
|
|
Status NewWritableFile(const std::string& f, unique_ptr<WritableFile>* r,
|
|
const EnvOptions& soptions) override {
|
|
class CountingFile : public WritableFile {
|
|
private:
|
|
unique_ptr<WritableFile> target_;
|
|
ReportFileOpCounters* counters_;
|
|
|
|
public:
|
|
CountingFile(unique_ptr<WritableFile>&& target,
|
|
ReportFileOpCounters* counters)
|
|
: target_(std::move(target)), counters_(counters) {}
|
|
|
|
Status Append(const Slice& data) override {
|
|
counters_->append_counter_.fetch_add(1, std::memory_order_relaxed);
|
|
Status rv = target_->Append(data);
|
|
counters_->bytes_written_.fetch_add(data.size(),
|
|
std::memory_order_relaxed);
|
|
return rv;
|
|
}
|
|
|
|
Status Close() override { return target_->Close(); }
|
|
Status Flush() override { return target_->Flush(); }
|
|
Status Sync() override { return target_->Sync(); }
|
|
};
|
|
|
|
Status s = target()->NewWritableFile(f, r, soptions);
|
|
if (s.ok()) {
|
|
counters()->open_counter_.fetch_add(1, std::memory_order_relaxed);
|
|
r->reset(new CountingFile(std::move(*r), counters()));
|
|
}
|
|
return s;
|
|
}
|
|
|
|
// getter
|
|
ReportFileOpCounters* counters() { return &counters_; }
|
|
|
|
private:
|
|
ReportFileOpCounters counters_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
// Helper for quickly generating random data.
|
|
class RandomGenerator {
|
|
private:
|
|
std::string data_;
|
|
unsigned int pos_;
|
|
|
|
public:
|
|
RandomGenerator() {
|
|
// We use a limited amount of data over and over again and ensure
|
|
// that it is larger than the compression window (32KB), and also
|
|
// large enough to serve all typical value sizes we want to write.
|
|
Random rnd(301);
|
|
std::string piece;
|
|
while (data_.size() < (unsigned)std::max(1048576, FLAGS_value_size)) {
|
|
// Add a short fragment that is as compressible as specified
|
|
// by FLAGS_compression_ratio.
|
|
test::CompressibleString(&rnd, FLAGS_compression_ratio, 100, &piece);
|
|
data_.append(piece);
|
|
}
|
|
pos_ = 0;
|
|
}
|
|
|
|
Slice Generate(unsigned int len) {
|
|
assert(len <= data_.size());
|
|
if (pos_ + len > data_.size()) {
|
|
pos_ = 0;
|
|
}
|
|
pos_ += len;
|
|
return Slice(data_.data() + pos_ - len, len);
|
|
}
|
|
};
|
|
|
|
static void AppendWithSpace(std::string* str, Slice msg) {
|
|
if (msg.empty()) return;
|
|
if (!str->empty()) {
|
|
str->push_back(' ');
|
|
}
|
|
str->append(msg.data(), msg.size());
|
|
}
|
|
|
|
struct DBWithColumnFamilies {
|
|
std::vector<ColumnFamilyHandle*> cfh;
|
|
DB* db;
|
|
OptimisticTransactionDB* txn_db;
|
|
std::atomic<size_t> num_created; // Need to be updated after all the
|
|
// new entries in cfh are set.
|
|
size_t num_hot; // Number of column families to be queried at each moment.
|
|
// After each CreateNewCf(), another num_hot number of new
|
|
// Column families will be created and used to be queried.
|
|
port::Mutex create_cf_mutex; // Only one thread can execute CreateNewCf()
|
|
|
|
DBWithColumnFamilies() : db(nullptr), txn_db(nullptr) {
|
|
cfh.clear();
|
|
num_created = 0;
|
|
num_hot = 0;
|
|
}
|
|
|
|
DBWithColumnFamilies(const DBWithColumnFamilies& other)
|
|
: cfh(other.cfh),
|
|
db(other.db),
|
|
txn_db(other.txn_db),
|
|
num_created(other.num_created.load()),
|
|
num_hot(other.num_hot) {}
|
|
|
|
void DeleteDBs() {
|
|
std::for_each(cfh.begin(), cfh.end(),
|
|
[](ColumnFamilyHandle* cfhi) { delete cfhi; });
|
|
cfh.clear();
|
|
if (txn_db) {
|
|
delete txn_db;
|
|
txn_db = nullptr;
|
|
} else {
|
|
delete db;
|
|
}
|
|
db = nullptr;
|
|
}
|
|
|
|
ColumnFamilyHandle* GetCfh(int64_t rand_num) {
|
|
assert(num_hot > 0);
|
|
return cfh[num_created.load(std::memory_order_acquire) - num_hot +
|
|
rand_num % num_hot];
|
|
}
|
|
|
|
// stage: assume CF from 0 to stage * num_hot has be created. Need to create
|
|
// stage * num_hot + 1 to stage * (num_hot + 1).
|
|
void CreateNewCf(ColumnFamilyOptions options, int64_t stage) {
|
|
MutexLock l(&create_cf_mutex);
|
|
if ((stage + 1) * num_hot <= num_created) {
|
|
// Already created.
|
|
return;
|
|
}
|
|
auto new_num_created = num_created + num_hot;
|
|
assert(new_num_created <= cfh.size());
|
|
for (size_t i = num_created; i < new_num_created; i++) {
|
|
Status s =
|
|
db->CreateColumnFamily(options, ColumnFamilyName(i), &(cfh[i]));
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "create column family error: %s\n",
|
|
s.ToString().c_str());
|
|
abort();
|
|
}
|
|
}
|
|
num_created.store(new_num_created, std::memory_order_release);
|
|
}
|
|
};
|
|
|
|
// a class that reports stats to CSV file
|
|
class ReporterAgent {
|
|
public:
|
|
ReporterAgent(Env* env, const std::string& fname,
|
|
uint64_t report_interval_secs)
|
|
: env_(env),
|
|
total_ops_done_(0),
|
|
last_report_(0),
|
|
report_interval_secs_(report_interval_secs),
|
|
stop_(false) {
|
|
auto s = env_->NewWritableFile(fname, &report_file_, EnvOptions());
|
|
if (s.ok()) {
|
|
s = report_file_->Append(Header() + "\n");
|
|
}
|
|
if (s.ok()) {
|
|
s = report_file_->Flush();
|
|
}
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "Can't open %s: %s\n", fname.c_str(),
|
|
s.ToString().c_str());
|
|
abort();
|
|
}
|
|
|
|
reporting_thread_ = std::thread([&]() { SleepAndReport(); });
|
|
}
|
|
|
|
~ReporterAgent() {
|
|
{
|
|
std::unique_lock<std::mutex> lk(mutex_);
|
|
stop_ = true;
|
|
stop_cv_.notify_all();
|
|
}
|
|
reporting_thread_.join();
|
|
}
|
|
|
|
// thread safe
|
|
void ReportFinishedOps(int64_t num_ops) {
|
|
total_ops_done_.fetch_add(num_ops);
|
|
}
|
|
|
|
private:
|
|
std::string Header() const { return "secs_elapsed,interval_qps"; }
|
|
void SleepAndReport() {
|
|
uint64_t kMicrosInSecond = 1000 * 1000;
|
|
auto time_started = env_->NowMicros();
|
|
while (true) {
|
|
{
|
|
std::unique_lock<std::mutex> lk(mutex_);
|
|
if (stop_ ||
|
|
stop_cv_.wait_for(lk, std::chrono::seconds(report_interval_secs_),
|
|
[&]() { return stop_; })) {
|
|
// stopping
|
|
break;
|
|
}
|
|
// else -> timeout, which means time for a report!
|
|
}
|
|
auto total_ops_done_snapshot = total_ops_done_.load();
|
|
// round the seconds elapsed
|
|
auto secs_elapsed =
|
|
(env_->NowMicros() - time_started + kMicrosInSecond / 2) /
|
|
kMicrosInSecond;
|
|
std::string report = ToString(secs_elapsed) + "," +
|
|
ToString(total_ops_done_snapshot - last_report_) +
|
|
"\n";
|
|
auto s = report_file_->Append(report);
|
|
if (s.ok()) {
|
|
s = report_file_->Flush();
|
|
}
|
|
if (!s.ok()) {
|
|
fprintf(stderr,
|
|
"Can't write to report file (%s), stopping the reporting\n",
|
|
s.ToString().c_str());
|
|
break;
|
|
}
|
|
last_report_ = total_ops_done_snapshot;
|
|
}
|
|
}
|
|
|
|
Env* env_;
|
|
std::unique_ptr<WritableFile> report_file_;
|
|
std::atomic<int64_t> total_ops_done_;
|
|
int64_t last_report_;
|
|
const uint64_t report_interval_secs_;
|
|
std::thread reporting_thread_;
|
|
std::mutex mutex_;
|
|
// will notify on stop
|
|
std::condition_variable stop_cv_;
|
|
bool stop_;
|
|
};
|
|
|
|
class Stats {
|
|
private:
|
|
int id_;
|
|
double start_;
|
|
double finish_;
|
|
double seconds_;
|
|
int64_t done_;
|
|
int64_t last_report_done_;
|
|
int64_t next_report_;
|
|
int64_t bytes_;
|
|
double last_op_finish_;
|
|
double last_report_finish_;
|
|
HistogramImpl hist_;
|
|
std::string message_;
|
|
bool exclude_from_merge_;
|
|
ReporterAgent* reporter_agent_; // does not own
|
|
|
|
public:
|
|
Stats() { Start(-1); }
|
|
|
|
void SetReporterAgent(ReporterAgent* reporter_agent) {
|
|
reporter_agent_ = reporter_agent;
|
|
}
|
|
|
|
void Start(int id) {
|
|
id_ = id;
|
|
next_report_ = FLAGS_stats_interval ? FLAGS_stats_interval : 100;
|
|
last_op_finish_ = start_;
|
|
hist_.Clear();
|
|
done_ = 0;
|
|
last_report_done_ = 0;
|
|
bytes_ = 0;
|
|
seconds_ = 0;
|
|
start_ = FLAGS_env->NowMicros();
|
|
finish_ = start_;
|
|
last_report_finish_ = start_;
|
|
message_.clear();
|
|
// When set, stats from this thread won't be merged with others.
|
|
exclude_from_merge_ = false;
|
|
}
|
|
|
|
void Merge(const Stats& other) {
|
|
if (other.exclude_from_merge_)
|
|
return;
|
|
|
|
hist_.Merge(other.hist_);
|
|
done_ += other.done_;
|
|
bytes_ += other.bytes_;
|
|
seconds_ += other.seconds_;
|
|
if (other.start_ < start_) start_ = other.start_;
|
|
if (other.finish_ > finish_) finish_ = other.finish_;
|
|
|
|
// Just keep the messages from one thread
|
|
if (message_.empty()) message_ = other.message_;
|
|
}
|
|
|
|
void Stop() {
|
|
finish_ = FLAGS_env->NowMicros();
|
|
seconds_ = (finish_ - start_) * 1e-6;
|
|
}
|
|
|
|
void AddMessage(Slice msg) {
|
|
AppendWithSpace(&message_, msg);
|
|
}
|
|
|
|
void SetId(int id) { id_ = id; }
|
|
void SetExcludeFromMerge() { exclude_from_merge_ = true; }
|
|
|
|
void PrintThreadStatus() {
|
|
std::vector<ThreadStatus> thread_list;
|
|
FLAGS_env->GetThreadList(&thread_list);
|
|
|
|
fprintf(stderr, "\n%18s %10s %12s %20s %13s %45s %12s %s\n",
|
|
"ThreadID", "ThreadType", "cfName", "Operation",
|
|
"ElapsedTime", "Stage", "State", "OperationProperties");
|
|
|
|
int64_t current_time = 0;
|
|
Env::Default()->GetCurrentTime(¤t_time);
|
|
for (auto ts : thread_list) {
|
|
fprintf(stderr, "%18" PRIu64 " %10s %12s %20s %13s %45s %12s",
|
|
ts.thread_id,
|
|
ThreadStatus::GetThreadTypeName(ts.thread_type).c_str(),
|
|
ts.cf_name.c_str(),
|
|
ThreadStatus::GetOperationName(ts.operation_type).c_str(),
|
|
ThreadStatus::MicrosToString(ts.op_elapsed_micros).c_str(),
|
|
ThreadStatus::GetOperationStageName(ts.operation_stage).c_str(),
|
|
ThreadStatus::GetStateName(ts.state_type).c_str());
|
|
|
|
auto op_properties = ThreadStatus::InterpretOperationProperties(
|
|
ts.operation_type, ts.op_properties);
|
|
for (const auto& op_prop : op_properties) {
|
|
fprintf(stderr, " %s %" PRIu64" |",
|
|
op_prop.first.c_str(), op_prop.second);
|
|
}
|
|
fprintf(stderr, "\n");
|
|
}
|
|
}
|
|
|
|
void FinishedOps(DBWithColumnFamilies* db_with_cfh, DB* db, int64_t num_ops) {
|
|
if (reporter_agent_) {
|
|
reporter_agent_->ReportFinishedOps(num_ops);
|
|
}
|
|
if (FLAGS_histogram) {
|
|
double now = FLAGS_env->NowMicros();
|
|
double micros = now - last_op_finish_;
|
|
hist_.Add(micros);
|
|
if (micros > 20000 && !FLAGS_stats_interval) {
|
|
fprintf(stderr, "long op: %.1f micros%30s\r", micros, "");
|
|
fflush(stderr);
|
|
}
|
|
last_op_finish_ = now;
|
|
}
|
|
|
|
done_ += num_ops;
|
|
if (done_ >= next_report_) {
|
|
if (!FLAGS_stats_interval) {
|
|
if (next_report_ < 1000) next_report_ += 100;
|
|
else if (next_report_ < 5000) next_report_ += 500;
|
|
else if (next_report_ < 10000) next_report_ += 1000;
|
|
else if (next_report_ < 50000) next_report_ += 5000;
|
|
else if (next_report_ < 100000) next_report_ += 10000;
|
|
else if (next_report_ < 500000) next_report_ += 50000;
|
|
else next_report_ += 100000;
|
|
fprintf(stderr, "... finished %" PRIu64 " ops%30s\r", done_, "");
|
|
} else {
|
|
double now = FLAGS_env->NowMicros();
|
|
int64_t usecs_since_last = now - last_report_finish_;
|
|
|
|
// Determine whether to print status where interval is either
|
|
// each N operations or each N seconds.
|
|
|
|
if (FLAGS_stats_interval_seconds &&
|
|
usecs_since_last < (FLAGS_stats_interval_seconds * 1000000)) {
|
|
// Don't check again for this many operations
|
|
next_report_ += FLAGS_stats_interval;
|
|
|
|
} else {
|
|
|
|
fprintf(stderr,
|
|
"%s ... thread %d: (%" PRIu64 ",%" PRIu64 ") ops and "
|
|
"(%.1f,%.1f) ops/second in (%.6f,%.6f) seconds\n",
|
|
FLAGS_env->TimeToString((uint64_t) now/1000000).c_str(),
|
|
id_,
|
|
done_ - last_report_done_, done_,
|
|
(done_ - last_report_done_) /
|
|
(usecs_since_last / 1000000.0),
|
|
done_ / ((now - start_) / 1000000.0),
|
|
(now - last_report_finish_) / 1000000.0,
|
|
(now - start_) / 1000000.0);
|
|
|
|
if (FLAGS_stats_per_interval) {
|
|
std::string stats;
|
|
|
|
if (db_with_cfh && db_with_cfh->num_created.load()) {
|
|
for (size_t i = 0; i < db_with_cfh->num_created.load(); ++i) {
|
|
if (db->GetProperty(db_with_cfh->cfh[i], "rocksdb.cfstats",
|
|
&stats))
|
|
fprintf(stderr, "%s\n", stats.c_str());
|
|
}
|
|
|
|
} else if (db && db->GetProperty("rocksdb.stats", &stats)) {
|
|
fprintf(stderr, "%s\n", stats.c_str());
|
|
}
|
|
}
|
|
|
|
next_report_ += FLAGS_stats_interval;
|
|
last_report_finish_ = now;
|
|
last_report_done_ = done_;
|
|
}
|
|
}
|
|
if (id_ == 0 && FLAGS_thread_status_per_interval) {
|
|
PrintThreadStatus();
|
|
}
|
|
fflush(stderr);
|
|
}
|
|
}
|
|
|
|
void AddBytes(int64_t n) {
|
|
bytes_ += n;
|
|
}
|
|
|
|
void Report(const Slice& name) {
|
|
// Pretend at least one op was done in case we are running a benchmark
|
|
// that does not call FinishedOps().
|
|
if (done_ < 1) done_ = 1;
|
|
|
|
std::string extra;
|
|
if (bytes_ > 0) {
|
|
// Rate is computed on actual elapsed time, not the sum of per-thread
|
|
// elapsed times.
|
|
double elapsed = (finish_ - start_) * 1e-6;
|
|
char rate[100];
|
|
snprintf(rate, sizeof(rate), "%6.1f MB/s",
|
|
(bytes_ / 1048576.0) / elapsed);
|
|
extra = rate;
|
|
}
|
|
AppendWithSpace(&extra, message_);
|
|
double elapsed = (finish_ - start_) * 1e-6;
|
|
double throughput = (double)done_/elapsed;
|
|
|
|
fprintf(stdout, "%-12s : %11.3f micros/op %ld ops/sec;%s%s\n",
|
|
name.ToString().c_str(),
|
|
elapsed * 1e6 / done_,
|
|
(long)throughput,
|
|
(extra.empty() ? "" : " "),
|
|
extra.c_str());
|
|
if (FLAGS_histogram) {
|
|
fprintf(stdout, "Microseconds per op:\n%s\n", hist_.ToString().c_str());
|
|
}
|
|
if (FLAGS_report_file_operations) {
|
|
ReportFileOpEnv* env = static_cast<ReportFileOpEnv*>(FLAGS_env);
|
|
ReportFileOpCounters* counters = env->counters();
|
|
fprintf(stdout, "Num files opened: %d\n",
|
|
counters->open_counter_.load(std::memory_order_relaxed));
|
|
fprintf(stdout, "Num Read(): %d\n",
|
|
counters->read_counter_.load(std::memory_order_relaxed));
|
|
fprintf(stdout, "Num Append(): %d\n",
|
|
counters->append_counter_.load(std::memory_order_relaxed));
|
|
fprintf(stdout, "Num bytes read: %" PRIu64 "\n",
|
|
counters->bytes_read_.load(std::memory_order_relaxed));
|
|
fprintf(stdout, "Num bytes written: %" PRIu64 "\n",
|
|
counters->bytes_written_.load(std::memory_order_relaxed));
|
|
env->reset();
|
|
}
|
|
fflush(stdout);
|
|
}
|
|
};
|
|
|
|
// State shared by all concurrent executions of the same benchmark.
|
|
struct SharedState {
|
|
port::Mutex mu;
|
|
port::CondVar cv;
|
|
int total;
|
|
int perf_level;
|
|
|
|
// Each thread goes through the following states:
|
|
// (1) initializing
|
|
// (2) waiting for others to be initialized
|
|
// (3) running
|
|
// (4) done
|
|
|
|
long num_initialized;
|
|
long num_done;
|
|
bool start;
|
|
|
|
SharedState() : cv(&mu), perf_level(FLAGS_perf_level) { }
|
|
};
|
|
|
|
// Per-thread state for concurrent executions of the same benchmark.
|
|
struct ThreadState {
|
|
int tid; // 0..n-1 when running in n threads
|
|
Random64 rand; // Has different seeds for different threads
|
|
Stats stats;
|
|
SharedState* shared;
|
|
|
|
/* implicit */ ThreadState(int index)
|
|
: tid(index),
|
|
rand((FLAGS_seed ? FLAGS_seed : 1000) + index) {
|
|
}
|
|
};
|
|
|
|
class Duration {
|
|
public:
|
|
Duration(int max_seconds, int64_t max_ops, int64_t ops_per_stage = 0) {
|
|
max_seconds_ = max_seconds;
|
|
max_ops_= max_ops;
|
|
ops_per_stage_ = (ops_per_stage > 0) ? ops_per_stage : max_ops;
|
|
ops_ = 0;
|
|
start_at_ = FLAGS_env->NowMicros();
|
|
}
|
|
|
|
int64_t GetStage() { return std::min(ops_, max_ops_ - 1) / ops_per_stage_; }
|
|
|
|
bool Done(int64_t increment) {
|
|
if (increment <= 0) increment = 1; // avoid Done(0) and infinite loops
|
|
ops_ += increment;
|
|
|
|
if (max_seconds_) {
|
|
// Recheck every appx 1000 ops (exact iff increment is factor of 1000)
|
|
if ((ops_/1000) != ((ops_-increment)/1000)) {
|
|
double now = FLAGS_env->NowMicros();
|
|
return ((now - start_at_) / 1000000.0) >= max_seconds_;
|
|
} else {
|
|
return false;
|
|
}
|
|
} else {
|
|
return ops_ > max_ops_;
|
|
}
|
|
}
|
|
|
|
private:
|
|
int max_seconds_;
|
|
int64_t max_ops_;
|
|
int64_t ops_per_stage_;
|
|
int64_t ops_;
|
|
double start_at_;
|
|
};
|
|
|
|
class Benchmark {
|
|
private:
|
|
std::shared_ptr<Cache> cache_;
|
|
std::shared_ptr<Cache> compressed_cache_;
|
|
std::shared_ptr<const FilterPolicy> filter_policy_;
|
|
const SliceTransform* prefix_extractor_;
|
|
DBWithColumnFamilies db_;
|
|
std::vector<DBWithColumnFamilies> multi_dbs_;
|
|
int64_t num_;
|
|
int value_size_;
|
|
int key_size_;
|
|
int prefix_size_;
|
|
int64_t keys_per_prefix_;
|
|
int64_t entries_per_batch_;
|
|
WriteOptions write_options_;
|
|
Options open_options_; // keep options around to properly destroy db later
|
|
int64_t reads_;
|
|
double read_random_exp_range_;
|
|
int64_t writes_;
|
|
int64_t readwrites_;
|
|
int64_t merge_keys_;
|
|
bool report_file_operations_;
|
|
int cachedev_fd_;
|
|
|
|
bool SanityCheck() {
|
|
if (FLAGS_compression_ratio > 1) {
|
|
fprintf(stderr, "compression_ratio should be between 0 and 1\n");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void PrintHeader() {
|
|
PrintEnvironment();
|
|
fprintf(stdout, "Keys: %d bytes each\n", FLAGS_key_size);
|
|
fprintf(stdout, "Values: %d bytes each (%d bytes after compression)\n",
|
|
FLAGS_value_size,
|
|
static_cast<int>(FLAGS_value_size * FLAGS_compression_ratio + 0.5));
|
|
fprintf(stdout, "Entries: %" PRIu64 "\n", num_);
|
|
fprintf(stdout, "Prefix: %d bytes\n", FLAGS_prefix_size);
|
|
fprintf(stdout, "Keys per prefix: %" PRIu64 "\n", keys_per_prefix_);
|
|
fprintf(stdout, "RawSize: %.1f MB (estimated)\n",
|
|
((static_cast<int64_t>(FLAGS_key_size + FLAGS_value_size) * num_)
|
|
/ 1048576.0));
|
|
fprintf(stdout, "FileSize: %.1f MB (estimated)\n",
|
|
(((FLAGS_key_size + FLAGS_value_size * FLAGS_compression_ratio)
|
|
* num_)
|
|
/ 1048576.0));
|
|
fprintf(stdout, "Write rate limit: %d\n", FLAGS_writes_per_second);
|
|
if (FLAGS_enable_numa) {
|
|
fprintf(stderr, "Running in NUMA enabled mode.\n");
|
|
#ifndef NUMA
|
|
fprintf(stderr, "NUMA is not defined in the system.\n");
|
|
exit(1);
|
|
#else
|
|
if (numa_available() == -1) {
|
|
fprintf(stderr, "NUMA is not supported by the system.\n");
|
|
exit(1);
|
|
}
|
|
#endif
|
|
}
|
|
switch (FLAGS_compression_type_e) {
|
|
case rocksdb::kNoCompression:
|
|
fprintf(stdout, "Compression: none\n");
|
|
break;
|
|
case rocksdb::kSnappyCompression:
|
|
fprintf(stdout, "Compression: snappy\n");
|
|
break;
|
|
case rocksdb::kZlibCompression:
|
|
fprintf(stdout, "Compression: zlib\n");
|
|
break;
|
|
case rocksdb::kBZip2Compression:
|
|
fprintf(stdout, "Compression: bzip2\n");
|
|
break;
|
|
case rocksdb::kLZ4Compression:
|
|
fprintf(stdout, "Compression: lz4\n");
|
|
break;
|
|
case rocksdb::kLZ4HCCompression:
|
|
fprintf(stdout, "Compression: lz4hc\n");
|
|
break;
|
|
}
|
|
|
|
switch (FLAGS_rep_factory) {
|
|
case kPrefixHash:
|
|
fprintf(stdout, "Memtablerep: prefix_hash\n");
|
|
break;
|
|
case kSkipList:
|
|
fprintf(stdout, "Memtablerep: skip_list\n");
|
|
break;
|
|
case kVectorRep:
|
|
fprintf(stdout, "Memtablerep: vector\n");
|
|
break;
|
|
case kHashLinkedList:
|
|
fprintf(stdout, "Memtablerep: hash_linkedlist\n");
|
|
break;
|
|
case kCuckoo:
|
|
fprintf(stdout, "Memtablerep: cuckoo\n");
|
|
break;
|
|
}
|
|
fprintf(stdout, "Perf Level: %d\n", FLAGS_perf_level);
|
|
|
|
PrintWarnings();
|
|
fprintf(stdout, "------------------------------------------------\n");
|
|
}
|
|
|
|
void PrintWarnings() {
|
|
#if defined(__GNUC__) && !defined(__OPTIMIZE__)
|
|
fprintf(stdout,
|
|
"WARNING: Optimization is disabled: benchmarks unnecessarily slow\n"
|
|
);
|
|
#endif
|
|
#ifndef NDEBUG
|
|
fprintf(stdout,
|
|
"WARNING: Assertions are enabled; benchmarks unnecessarily slow\n");
|
|
#endif
|
|
if (FLAGS_compression_type_e != rocksdb::kNoCompression) {
|
|
// The test string should not be too small.
|
|
const int len = FLAGS_block_size;
|
|
char* text = (char*) malloc(len+1);
|
|
bool result = true;
|
|
const char* name = nullptr;
|
|
std::string compressed;
|
|
|
|
memset(text, (int) 'y', len);
|
|
text[len] = '\0';
|
|
switch (FLAGS_compression_type_e) {
|
|
case kSnappyCompression:
|
|
result = Snappy_Compress(Options().compression_opts, text,
|
|
strlen(text), &compressed);
|
|
name = "Snappy";
|
|
break;
|
|
case kZlibCompression:
|
|
result = Zlib_Compress(Options().compression_opts, 2, text,
|
|
strlen(text), &compressed);
|
|
name = "Zlib";
|
|
break;
|
|
case kBZip2Compression:
|
|
result = BZip2_Compress(Options().compression_opts, 2, text,
|
|
strlen(text), &compressed);
|
|
name = "BZip2";
|
|
break;
|
|
case kLZ4Compression:
|
|
result = LZ4_Compress(Options().compression_opts, 2, text,
|
|
strlen(text), &compressed);
|
|
name = "LZ4";
|
|
break;
|
|
case kLZ4HCCompression:
|
|
result = LZ4HC_Compress(Options().compression_opts, 2, text,
|
|
strlen(text), &compressed);
|
|
name = "LZ4HC";
|
|
break;
|
|
case kNoCompression:
|
|
assert(false); // cannot happen
|
|
break;
|
|
}
|
|
|
|
if (!result) {
|
|
fprintf(stdout, "WARNING: %s compression is not enabled\n", name);
|
|
} else if (name && compressed.size() >= strlen(text)) {
|
|
fprintf(stdout, "WARNING: %s compression is not effective\n", name);
|
|
}
|
|
|
|
free(text);
|
|
}
|
|
}
|
|
|
|
// Current the following isn't equivalent to OS_LINUX.
|
|
#if defined(__linux)
|
|
static Slice TrimSpace(Slice s) {
|
|
unsigned int start = 0;
|
|
while (start < s.size() && isspace(s[start])) {
|
|
start++;
|
|
}
|
|
unsigned int limit = static_cast<unsigned int>(s.size());
|
|
while (limit > start && isspace(s[limit-1])) {
|
|
limit--;
|
|
}
|
|
return Slice(s.data() + start, limit - start);
|
|
}
|
|
#endif
|
|
|
|
void PrintEnvironment() {
|
|
fprintf(stderr, "LevelDB: version %d.%d\n",
|
|
kMajorVersion, kMinorVersion);
|
|
|
|
#if defined(__linux)
|
|
time_t now = time(nullptr);
|
|
fprintf(stderr, "Date: %s", ctime(&now)); // ctime() adds newline
|
|
|
|
FILE* cpuinfo = fopen("/proc/cpuinfo", "r");
|
|
if (cpuinfo != nullptr) {
|
|
char line[1000];
|
|
int num_cpus = 0;
|
|
std::string cpu_type;
|
|
std::string cache_size;
|
|
while (fgets(line, sizeof(line), cpuinfo) != nullptr) {
|
|
const char* sep = strchr(line, ':');
|
|
if (sep == nullptr) {
|
|
continue;
|
|
}
|
|
Slice key = TrimSpace(Slice(line, sep - 1 - line));
|
|
Slice val = TrimSpace(Slice(sep + 1));
|
|
if (key == "model name") {
|
|
++num_cpus;
|
|
cpu_type = val.ToString();
|
|
} else if (key == "cache size") {
|
|
cache_size = val.ToString();
|
|
}
|
|
}
|
|
fclose(cpuinfo);
|
|
fprintf(stderr, "CPU: %d * %s\n", num_cpus, cpu_type.c_str());
|
|
fprintf(stderr, "CPUCache: %s\n", cache_size.c_str());
|
|
}
|
|
#endif
|
|
}
|
|
|
|
public:
|
|
Benchmark()
|
|
: cache_(
|
|
FLAGS_cache_size >= 0
|
|
? (FLAGS_cache_numshardbits >= 1
|
|
? NewLRUCache(FLAGS_cache_size, FLAGS_cache_numshardbits)
|
|
: NewLRUCache(FLAGS_cache_size))
|
|
: nullptr),
|
|
compressed_cache_(FLAGS_compressed_cache_size >= 0
|
|
? (FLAGS_cache_numshardbits >= 1
|
|
? NewLRUCache(FLAGS_compressed_cache_size,
|
|
FLAGS_cache_numshardbits)
|
|
: NewLRUCache(FLAGS_compressed_cache_size))
|
|
: nullptr),
|
|
filter_policy_(FLAGS_bloom_bits >= 0
|
|
? NewBloomFilterPolicy(FLAGS_bloom_bits,
|
|
FLAGS_use_block_based_filter)
|
|
: nullptr),
|
|
prefix_extractor_(NewFixedPrefixTransform(FLAGS_prefix_size)),
|
|
num_(FLAGS_num),
|
|
value_size_(FLAGS_value_size),
|
|
key_size_(FLAGS_key_size),
|
|
prefix_size_(FLAGS_prefix_size),
|
|
keys_per_prefix_(FLAGS_keys_per_prefix),
|
|
entries_per_batch_(1),
|
|
reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
|
|
read_random_exp_range_(0.0),
|
|
writes_(FLAGS_writes < 0 ? FLAGS_num : FLAGS_writes),
|
|
readwrites_(
|
|
(FLAGS_writes < 0 && FLAGS_reads < 0)
|
|
? FLAGS_num
|
|
: ((FLAGS_writes > FLAGS_reads) ? FLAGS_writes : FLAGS_reads)),
|
|
merge_keys_(FLAGS_merge_keys < 0 ? FLAGS_num : FLAGS_merge_keys),
|
|
report_file_operations_(FLAGS_report_file_operations),
|
|
cachedev_fd_(-1) {
|
|
if (report_file_operations_) {
|
|
if (!FLAGS_hdfs.empty()) {
|
|
fprintf(stderr,
|
|
"--hdfs and --report_file_operations cannot be enabled "
|
|
"at the same time");
|
|
exit(1);
|
|
}
|
|
FLAGS_env = new ReportFileOpEnv(rocksdb::Env::Default());
|
|
}
|
|
|
|
if (FLAGS_prefix_size > FLAGS_key_size) {
|
|
fprintf(stderr, "prefix size is larger than key size");
|
|
exit(1);
|
|
}
|
|
|
|
std::vector<std::string> files;
|
|
FLAGS_env->GetChildren(FLAGS_db, &files);
|
|
for (unsigned int i = 0; i < files.size(); i++) {
|
|
if (Slice(files[i]).starts_with("heap-")) {
|
|
FLAGS_env->DeleteFile(FLAGS_db + "/" + files[i]);
|
|
}
|
|
}
|
|
if (!FLAGS_use_existing_db) {
|
|
Options options;
|
|
if (!FLAGS_wal_dir.empty()) {
|
|
options.wal_dir = FLAGS_wal_dir;
|
|
}
|
|
DestroyDB(FLAGS_db, options);
|
|
}
|
|
}
|
|
|
|
~Benchmark() {
|
|
db_.DeleteDBs();
|
|
delete prefix_extractor_;
|
|
if (cache_.get() != nullptr) {
|
|
// this will leak, but we're shutting down so nobody cares
|
|
cache_->DisownData();
|
|
}
|
|
if (FLAGS_disable_flashcache_for_background_threads && cachedev_fd_ != -1) {
|
|
// Dtor for this env should run before cachedev_fd_ is closed
|
|
flashcache_aware_env_ = nullptr;
|
|
close(cachedev_fd_);
|
|
}
|
|
}
|
|
|
|
Slice AllocateKey(std::unique_ptr<const char[]>* key_guard) {
|
|
char* data = new char[key_size_];
|
|
const char* const_data = data;
|
|
key_guard->reset(const_data);
|
|
return Slice(key_guard->get(), key_size_);
|
|
}
|
|
|
|
// Generate key according to the given specification and random number.
|
|
// The resulting key will have the following format (if keys_per_prefix_
|
|
// is positive), extra trailing bytes are either cut off or paddd with '0'.
|
|
// The prefix value is derived from key value.
|
|
// ----------------------------
|
|
// | prefix 00000 | key 00000 |
|
|
// ----------------------------
|
|
// If keys_per_prefix_ is 0, the key is simply a binary representation of
|
|
// random number followed by trailing '0's
|
|
// ----------------------------
|
|
// | key 00000 |
|
|
// ----------------------------
|
|
void GenerateKeyFromInt(uint64_t v, int64_t num_keys, Slice* key) {
|
|
char* start = const_cast<char*>(key->data());
|
|
char* pos = start;
|
|
if (keys_per_prefix_ > 0) {
|
|
int64_t num_prefix = num_keys / keys_per_prefix_;
|
|
int64_t prefix = v % num_prefix;
|
|
int bytes_to_fill = std::min(prefix_size_, 8);
|
|
if (port::kLittleEndian) {
|
|
for (int i = 0; i < bytes_to_fill; ++i) {
|
|
pos[i] = (prefix >> ((bytes_to_fill - i - 1) << 3)) & 0xFF;
|
|
}
|
|
} else {
|
|
memcpy(pos, static_cast<void*>(&prefix), bytes_to_fill);
|
|
}
|
|
if (prefix_size_ > 8) {
|
|
// fill the rest with 0s
|
|
memset(pos + 8, '0', prefix_size_ - 8);
|
|
}
|
|
pos += prefix_size_;
|
|
}
|
|
|
|
int bytes_to_fill = std::min(key_size_ - static_cast<int>(pos - start), 8);
|
|
if (port::kLittleEndian) {
|
|
for (int i = 0; i < bytes_to_fill; ++i) {
|
|
pos[i] = (v >> ((bytes_to_fill - i - 1) << 3)) & 0xFF;
|
|
}
|
|
} else {
|
|
memcpy(pos, static_cast<void*>(&v), bytes_to_fill);
|
|
}
|
|
pos += bytes_to_fill;
|
|
if (key_size_ > pos - start) {
|
|
memset(pos, '0', key_size_ - (pos - start));
|
|
}
|
|
}
|
|
|
|
std::string GetDbNameForMultiple(std::string base_name, size_t id) {
|
|
return base_name + ToString(id);
|
|
}
|
|
|
|
void Run() {
|
|
if (!SanityCheck()) {
|
|
exit(1);
|
|
}
|
|
PrintHeader();
|
|
Open(&open_options_);
|
|
const char* benchmarks = FLAGS_benchmarks.c_str();
|
|
while (benchmarks != nullptr) {
|
|
const char* sep = strchr(benchmarks, ',');
|
|
Slice name;
|
|
if (sep == nullptr) {
|
|
name = benchmarks;
|
|
benchmarks = nullptr;
|
|
} else {
|
|
name = Slice(benchmarks, sep - benchmarks);
|
|
benchmarks = sep + 1;
|
|
}
|
|
|
|
// Sanitize parameters
|
|
num_ = FLAGS_num;
|
|
reads_ = (FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads);
|
|
writes_ = (FLAGS_writes < 0 ? FLAGS_num : FLAGS_writes);
|
|
value_size_ = FLAGS_value_size;
|
|
key_size_ = FLAGS_key_size;
|
|
entries_per_batch_ = FLAGS_batch_size;
|
|
write_options_ = WriteOptions();
|
|
read_random_exp_range_ = FLAGS_read_random_exp_range;
|
|
if (FLAGS_sync) {
|
|
write_options_.sync = true;
|
|
}
|
|
write_options_.disableWAL = FLAGS_disable_wal;
|
|
|
|
void (Benchmark::*method)(ThreadState*) = nullptr;
|
|
void (Benchmark::*post_process_method)() = nullptr;
|
|
|
|
bool fresh_db = false;
|
|
int num_threads = FLAGS_threads;
|
|
|
|
if (name == Slice("fillseq")) {
|
|
fresh_db = true;
|
|
method = &Benchmark::WriteSeq;
|
|
} else if (name == Slice("fillbatch")) {
|
|
fresh_db = true;
|
|
entries_per_batch_ = 1000;
|
|
method = &Benchmark::WriteSeq;
|
|
} else if (name == Slice("fillrandom")) {
|
|
fresh_db = true;
|
|
method = &Benchmark::WriteRandom;
|
|
} else if (name == Slice("filluniquerandom")) {
|
|
fresh_db = true;
|
|
if (num_threads > 1) {
|
|
fprintf(stderr, "filluniquerandom multithreaded not supported"
|
|
", use 1 thread");
|
|
num_threads = 1;
|
|
}
|
|
method = &Benchmark::WriteUniqueRandom;
|
|
} else if (name == Slice("overwrite")) {
|
|
fresh_db = false;
|
|
method = &Benchmark::WriteRandom;
|
|
} else if (name == Slice("fillsync")) {
|
|
fresh_db = true;
|
|
num_ /= 1000;
|
|
write_options_.sync = true;
|
|
method = &Benchmark::WriteRandom;
|
|
} else if (name == Slice("fill100K")) {
|
|
fresh_db = true;
|
|
num_ /= 1000;
|
|
value_size_ = 100 * 1000;
|
|
method = &Benchmark::WriteRandom;
|
|
} else if (name == Slice("readseq")) {
|
|
method = &Benchmark::ReadSequential;
|
|
} else if (name == Slice("readtocache")) {
|
|
method = &Benchmark::ReadSequential;
|
|
num_threads = 1;
|
|
reads_ = num_;
|
|
} else if (name == Slice("readreverse")) {
|
|
method = &Benchmark::ReadReverse;
|
|
} else if (name == Slice("readrandom")) {
|
|
method = &Benchmark::ReadRandom;
|
|
} else if (name == Slice("readrandomfast")) {
|
|
method = &Benchmark::ReadRandomFast;
|
|
} else if (name == Slice("multireadrandom")) {
|
|
fprintf(stderr, "entries_per_batch = %" PRIi64 "\n",
|
|
entries_per_batch_);
|
|
method = &Benchmark::MultiReadRandom;
|
|
} else if (name == Slice("readmissing")) {
|
|
++key_size_;
|
|
method = &Benchmark::ReadRandom;
|
|
} else if (name == Slice("newiterator")) {
|
|
method = &Benchmark::IteratorCreation;
|
|
} else if (name == Slice("newiteratorwhilewriting")) {
|
|
num_threads++; // Add extra thread for writing
|
|
method = &Benchmark::IteratorCreationWhileWriting;
|
|
} else if (name == Slice("seekrandom")) {
|
|
method = &Benchmark::SeekRandom;
|
|
} else if (name == Slice("seekrandomwhilewriting")) {
|
|
num_threads++; // Add extra thread for writing
|
|
method = &Benchmark::SeekRandomWhileWriting;
|
|
} else if (name == Slice("seekrandomwhilemerging")) {
|
|
num_threads++; // Add extra thread for merging
|
|
method = &Benchmark::SeekRandomWhileMerging;
|
|
} else if (name == Slice("readrandomsmall")) {
|
|
reads_ /= 1000;
|
|
method = &Benchmark::ReadRandom;
|
|
} else if (name == Slice("deleteseq")) {
|
|
method = &Benchmark::DeleteSeq;
|
|
} else if (name == Slice("deleterandom")) {
|
|
method = &Benchmark::DeleteRandom;
|
|
} else if (name == Slice("readwhilewriting")) {
|
|
num_threads++; // Add extra thread for writing
|
|
method = &Benchmark::ReadWhileWriting;
|
|
} else if (name == Slice("readwhilemerging")) {
|
|
num_threads++; // Add extra thread for writing
|
|
method = &Benchmark::ReadWhileMerging;
|
|
} else if (name == Slice("readrandomwriterandom")) {
|
|
method = &Benchmark::ReadRandomWriteRandom;
|
|
} else if (name == Slice("readrandommergerandom")) {
|
|
if (FLAGS_merge_operator.empty()) {
|
|
fprintf(stdout, "%-12s : skipped (--merge_operator is unknown)\n",
|
|
name.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
method = &Benchmark::ReadRandomMergeRandom;
|
|
} else if (name == Slice("updaterandom")) {
|
|
method = &Benchmark::UpdateRandom;
|
|
} else if (name == Slice("appendrandom")) {
|
|
method = &Benchmark::AppendRandom;
|
|
} else if (name == Slice("mergerandom")) {
|
|
if (FLAGS_merge_operator.empty()) {
|
|
fprintf(stdout, "%-12s : skipped (--merge_operator is unknown)\n",
|
|
name.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
method = &Benchmark::MergeRandom;
|
|
} else if (name == Slice("randomwithverify")) {
|
|
method = &Benchmark::RandomWithVerify;
|
|
} else if (name == Slice("fillseekseq")) {
|
|
method = &Benchmark::WriteSeqSeekSeq;
|
|
} else if (name == Slice("compact")) {
|
|
method = &Benchmark::Compact;
|
|
} else if (name == Slice("crc32c")) {
|
|
method = &Benchmark::Crc32c;
|
|
} else if (name == Slice("xxhash")) {
|
|
method = &Benchmark::xxHash;
|
|
} else if (name == Slice("acquireload")) {
|
|
method = &Benchmark::AcquireLoad;
|
|
} else if (name == Slice("compress")) {
|
|
method = &Benchmark::Compress;
|
|
} else if (name == Slice("uncompress")) {
|
|
method = &Benchmark::Uncompress;
|
|
} else if (name == Slice("randomtransaction")) {
|
|
method = &Benchmark::RandomTransaction;
|
|
post_process_method = &Benchmark::RandomTransactionVerify;
|
|
} else if (name == Slice("stats")) {
|
|
PrintStats("rocksdb.stats");
|
|
} else if (name == Slice("levelstats")) {
|
|
PrintStats("rocksdb.levelstats");
|
|
} else if (name == Slice("sstables")) {
|
|
PrintStats("rocksdb.sstables");
|
|
} else {
|
|
if (name != Slice()) { // No error message for empty name
|
|
fprintf(stderr, "unknown benchmark '%s'\n", name.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (fresh_db) {
|
|
if (FLAGS_use_existing_db) {
|
|
fprintf(stdout, "%-12s : skipped (--use_existing_db is true)\n",
|
|
name.ToString().c_str());
|
|
method = nullptr;
|
|
} else {
|
|
if (db_.db != nullptr) {
|
|
db_.DeleteDBs();
|
|
DestroyDB(FLAGS_db, open_options_);
|
|
}
|
|
for (size_t i = 0; i < multi_dbs_.size(); i++) {
|
|
delete multi_dbs_[i].db;
|
|
DestroyDB(GetDbNameForMultiple(FLAGS_db, i), open_options_);
|
|
}
|
|
multi_dbs_.clear();
|
|
}
|
|
Open(&open_options_); // use open_options for the last accessed
|
|
}
|
|
|
|
if (method != nullptr) {
|
|
fprintf(stdout, "DB path: [%s]\n", FLAGS_db.c_str());
|
|
RunBenchmark(num_threads, name, method);
|
|
}
|
|
if (post_process_method != nullptr) {
|
|
(this->*post_process_method)();
|
|
}
|
|
}
|
|
if (FLAGS_statistics) {
|
|
fprintf(stdout, "STATISTICS:\n%s\n", dbstats->ToString().c_str());
|
|
}
|
|
}
|
|
|
|
private:
|
|
std::unique_ptr<Env> flashcache_aware_env_;
|
|
|
|
struct ThreadArg {
|
|
Benchmark* bm;
|
|
SharedState* shared;
|
|
ThreadState* thread;
|
|
void (Benchmark::*method)(ThreadState*);
|
|
};
|
|
|
|
static void ThreadBody(void* v) {
|
|
ThreadArg* arg = reinterpret_cast<ThreadArg*>(v);
|
|
SharedState* shared = arg->shared;
|
|
ThreadState* thread = arg->thread;
|
|
{
|
|
MutexLock l(&shared->mu);
|
|
shared->num_initialized++;
|
|
if (shared->num_initialized >= shared->total) {
|
|
shared->cv.SignalAll();
|
|
}
|
|
while (!shared->start) {
|
|
shared->cv.Wait();
|
|
}
|
|
}
|
|
|
|
SetPerfLevel(static_cast<PerfLevel> (shared->perf_level));
|
|
thread->stats.Start(thread->tid);
|
|
(arg->bm->*(arg->method))(thread);
|
|
thread->stats.Stop();
|
|
|
|
{
|
|
MutexLock l(&shared->mu);
|
|
shared->num_done++;
|
|
if (shared->num_done >= shared->total) {
|
|
shared->cv.SignalAll();
|
|
}
|
|
}
|
|
}
|
|
|
|
void RunBenchmark(int n, Slice name,
|
|
void (Benchmark::*method)(ThreadState*)) {
|
|
SharedState shared;
|
|
shared.total = n;
|
|
shared.num_initialized = 0;
|
|
shared.num_done = 0;
|
|
shared.start = false;
|
|
|
|
std::unique_ptr<ReporterAgent> reporter_agent;
|
|
if (FLAGS_report_interval_seconds > 0) {
|
|
reporter_agent.reset(new ReporterAgent(FLAGS_env, FLAGS_report_file,
|
|
FLAGS_report_interval_seconds));
|
|
}
|
|
|
|
ThreadArg* arg = new ThreadArg[n];
|
|
|
|
for (int i = 0; i < n; i++) {
|
|
#ifdef NUMA
|
|
if (FLAGS_enable_numa) {
|
|
// Performs a local allocation of memory to threads in numa node.
|
|
int n_nodes = numa_num_task_nodes(); // Number of nodes in NUMA.
|
|
numa_exit_on_error = 1;
|
|
int numa_node = i % n_nodes;
|
|
bitmask* nodes = numa_allocate_nodemask();
|
|
numa_bitmask_clearall(nodes);
|
|
numa_bitmask_setbit(nodes, numa_node);
|
|
// numa_bind() call binds the process to the node and these
|
|
// properties are passed on to the thread that is created in
|
|
// StartThread method called later in the loop.
|
|
numa_bind(nodes);
|
|
numa_set_strict(1);
|
|
numa_free_nodemask(nodes);
|
|
}
|
|
#endif
|
|
arg[i].bm = this;
|
|
arg[i].method = method;
|
|
arg[i].shared = &shared;
|
|
arg[i].thread = new ThreadState(i);
|
|
arg[i].thread->stats.SetReporterAgent(reporter_agent.get());
|
|
arg[i].thread->shared = &shared;
|
|
FLAGS_env->StartThread(ThreadBody, &arg[i]);
|
|
}
|
|
|
|
shared.mu.Lock();
|
|
while (shared.num_initialized < n) {
|
|
shared.cv.Wait();
|
|
}
|
|
|
|
shared.start = true;
|
|
shared.cv.SignalAll();
|
|
while (shared.num_done < n) {
|
|
shared.cv.Wait();
|
|
}
|
|
shared.mu.Unlock();
|
|
|
|
// Stats for some threads can be excluded.
|
|
Stats merge_stats;
|
|
for (int i = 0; i < n; i++) {
|
|
merge_stats.Merge(arg[i].thread->stats);
|
|
}
|
|
merge_stats.Report(name);
|
|
|
|
for (int i = 0; i < n; i++) {
|
|
delete arg[i].thread;
|
|
}
|
|
delete[] arg;
|
|
}
|
|
|
|
void Crc32c(ThreadState* thread) {
|
|
// Checksum about 500MB of data total
|
|
const int size = 4096;
|
|
const char* label = "(4K per op)";
|
|
std::string data(size, 'x');
|
|
int64_t bytes = 0;
|
|
uint32_t crc = 0;
|
|
while (bytes < 500 * 1048576) {
|
|
crc = crc32c::Value(data.data(), size);
|
|
thread->stats.FinishedOps(nullptr, nullptr, 1);
|
|
bytes += size;
|
|
}
|
|
// Print so result is not dead
|
|
fprintf(stderr, "... crc=0x%x\r", static_cast<unsigned int>(crc));
|
|
|
|
thread->stats.AddBytes(bytes);
|
|
thread->stats.AddMessage(label);
|
|
}
|
|
|
|
void xxHash(ThreadState* thread) {
|
|
// Checksum about 500MB of data total
|
|
const int size = 4096;
|
|
const char* label = "(4K per op)";
|
|
std::string data(size, 'x');
|
|
int64_t bytes = 0;
|
|
unsigned int xxh32 = 0;
|
|
while (bytes < 500 * 1048576) {
|
|
xxh32 = XXH32(data.data(), size, 0);
|
|
thread->stats.FinishedOps(nullptr, nullptr, 1);
|
|
bytes += size;
|
|
}
|
|
// Print so result is not dead
|
|
fprintf(stderr, "... xxh32=0x%x\r", static_cast<unsigned int>(xxh32));
|
|
|
|
thread->stats.AddBytes(bytes);
|
|
thread->stats.AddMessage(label);
|
|
}
|
|
|
|
void AcquireLoad(ThreadState* thread) {
|
|
int dummy;
|
|
std::atomic<void*> ap(&dummy);
|
|
int count = 0;
|
|
void *ptr = nullptr;
|
|
thread->stats.AddMessage("(each op is 1000 loads)");
|
|
while (count < 100000) {
|
|
for (int i = 0; i < 1000; i++) {
|
|
ptr = ap.load(std::memory_order_acquire);
|
|
}
|
|
count++;
|
|
thread->stats.FinishedOps(nullptr, nullptr, 1);
|
|
}
|
|
if (ptr == nullptr) exit(1); // Disable unused variable warning.
|
|
}
|
|
|
|
void Compress(ThreadState *thread) {
|
|
RandomGenerator gen;
|
|
Slice input = gen.Generate(FLAGS_block_size);
|
|
int64_t bytes = 0;
|
|
int64_t produced = 0;
|
|
bool ok = true;
|
|
std::string compressed;
|
|
|
|
// Compress 1G
|
|
while (ok && bytes < int64_t(1) << 30) {
|
|
switch (FLAGS_compression_type_e) {
|
|
case rocksdb::kSnappyCompression:
|
|
ok = Snappy_Compress(Options().compression_opts, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
case rocksdb::kZlibCompression:
|
|
ok = Zlib_Compress(Options().compression_opts, 2, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
case rocksdb::kBZip2Compression:
|
|
ok = BZip2_Compress(Options().compression_opts, 2, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
case rocksdb::kLZ4Compression:
|
|
ok = LZ4_Compress(Options().compression_opts, 2, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
case rocksdb::kLZ4HCCompression:
|
|
ok = LZ4HC_Compress(Options().compression_opts, 2, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
default:
|
|
ok = false;
|
|
}
|
|
produced += compressed.size();
|
|
bytes += input.size();
|
|
thread->stats.FinishedOps(nullptr, nullptr, 1);
|
|
}
|
|
|
|
if (!ok) {
|
|
thread->stats.AddMessage("(compression failure)");
|
|
} else {
|
|
char buf[100];
|
|
snprintf(buf, sizeof(buf), "(output: %.1f%%)",
|
|
(produced * 100.0) / bytes);
|
|
thread->stats.AddMessage(buf);
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
}
|
|
|
|
void Uncompress(ThreadState *thread) {
|
|
RandomGenerator gen;
|
|
Slice input = gen.Generate(FLAGS_block_size);
|
|
std::string compressed;
|
|
|
|
bool ok;
|
|
switch (FLAGS_compression_type_e) {
|
|
case rocksdb::kSnappyCompression:
|
|
ok = Snappy_Compress(Options().compression_opts, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
case rocksdb::kZlibCompression:
|
|
ok = Zlib_Compress(Options().compression_opts, 2, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
case rocksdb::kBZip2Compression:
|
|
ok = BZip2_Compress(Options().compression_opts, 2, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
case rocksdb::kLZ4Compression:
|
|
ok = LZ4_Compress(Options().compression_opts, 2, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
case rocksdb::kLZ4HCCompression:
|
|
ok = LZ4HC_Compress(Options().compression_opts, 2, input.data(),
|
|
input.size(), &compressed);
|
|
break;
|
|
default:
|
|
ok = false;
|
|
}
|
|
|
|
int64_t bytes = 0;
|
|
int decompress_size;
|
|
while (ok && bytes < 1024 * 1048576) {
|
|
char *uncompressed = nullptr;
|
|
switch (FLAGS_compression_type_e) {
|
|
case rocksdb::kSnappyCompression:
|
|
// allocate here to make comparison fair
|
|
uncompressed = new char[input.size()];
|
|
ok = Snappy_Uncompress(compressed.data(), compressed.size(),
|
|
uncompressed);
|
|
break;
|
|
case rocksdb::kZlibCompression:
|
|
uncompressed = Zlib_Uncompress(compressed.data(), compressed.size(),
|
|
&decompress_size, 2);
|
|
ok = uncompressed != nullptr;
|
|
break;
|
|
case rocksdb::kBZip2Compression:
|
|
uncompressed = BZip2_Uncompress(compressed.data(), compressed.size(),
|
|
&decompress_size, 2);
|
|
ok = uncompressed != nullptr;
|
|
break;
|
|
case rocksdb::kLZ4Compression:
|
|
uncompressed = LZ4_Uncompress(compressed.data(), compressed.size(),
|
|
&decompress_size, 2);
|
|
ok = uncompressed != nullptr;
|
|
break;
|
|
case rocksdb::kLZ4HCCompression:
|
|
uncompressed = LZ4_Uncompress(compressed.data(), compressed.size(),
|
|
&decompress_size, 2);
|
|
ok = uncompressed != nullptr;
|
|
break;
|
|
default:
|
|
ok = false;
|
|
}
|
|
delete[] uncompressed;
|
|
bytes += input.size();
|
|
thread->stats.FinishedOps(nullptr, nullptr, 1);
|
|
}
|
|
|
|
if (!ok) {
|
|
thread->stats.AddMessage("(compression failure)");
|
|
} else {
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
}
|
|
|
|
void Open(Options* opts) {
|
|
Options& options = *opts;
|
|
|
|
assert(db_.db == nullptr);
|
|
|
|
options.create_if_missing = !FLAGS_use_existing_db;
|
|
options.create_missing_column_families = FLAGS_num_column_families > 1;
|
|
options.db_write_buffer_size = FLAGS_db_write_buffer_size;
|
|
options.write_buffer_size = FLAGS_write_buffer_size;
|
|
options.max_write_buffer_number = FLAGS_max_write_buffer_number;
|
|
options.min_write_buffer_number_to_merge =
|
|
FLAGS_min_write_buffer_number_to_merge;
|
|
options.max_write_buffer_number_to_maintain =
|
|
FLAGS_max_write_buffer_number_to_maintain;
|
|
options.max_background_compactions = FLAGS_max_background_compactions;
|
|
options.max_background_flushes = FLAGS_max_background_flushes;
|
|
options.compaction_style = FLAGS_compaction_style_e;
|
|
if (FLAGS_prefix_size != 0) {
|
|
options.prefix_extractor.reset(
|
|
NewFixedPrefixTransform(FLAGS_prefix_size));
|
|
}
|
|
if (FLAGS_use_uint64_comparator) {
|
|
options.comparator = test::Uint64Comparator();
|
|
if (FLAGS_key_size != 8) {
|
|
fprintf(stderr, "Using Uint64 comparator but key size is not 8.\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
options.memtable_prefix_bloom_bits = FLAGS_memtable_bloom_bits;
|
|
options.bloom_locality = FLAGS_bloom_locality;
|
|
options.max_open_files = FLAGS_open_files;
|
|
options.statistics = dbstats;
|
|
if (FLAGS_enable_io_prio) {
|
|
FLAGS_env->LowerThreadPoolIOPriority(Env::LOW);
|
|
FLAGS_env->LowerThreadPoolIOPriority(Env::HIGH);
|
|
}
|
|
if (FLAGS_disable_flashcache_for_background_threads &&
|
|
cachedev_fd_ == -1) {
|
|
// Avoid creating the env twice when an use_existing_db is true
|
|
cachedev_fd_ = open(FLAGS_flashcache_dev.c_str(), O_RDONLY);
|
|
if (cachedev_fd_ < 0) {
|
|
fprintf(stderr, "Open flash device failed\n");
|
|
exit(1);
|
|
}
|
|
flashcache_aware_env_ =
|
|
std::move(NewFlashcacheAwareEnv(FLAGS_env, cachedev_fd_));
|
|
if (flashcache_aware_env_.get() == nullptr) {
|
|
fprintf(stderr, "Failed to open flashcahce device at %s\n",
|
|
FLAGS_flashcache_dev.c_str());
|
|
std::abort();
|
|
}
|
|
options.env = flashcache_aware_env_.get();
|
|
} else {
|
|
options.env = FLAGS_env;
|
|
}
|
|
options.disableDataSync = FLAGS_disable_data_sync;
|
|
options.use_fsync = FLAGS_use_fsync;
|
|
options.wal_dir = FLAGS_wal_dir;
|
|
options.num_levels = FLAGS_num_levels;
|
|
options.target_file_size_base = FLAGS_target_file_size_base;
|
|
options.target_file_size_multiplier = FLAGS_target_file_size_multiplier;
|
|
options.max_bytes_for_level_base = FLAGS_max_bytes_for_level_base;
|
|
options.level_compaction_dynamic_level_bytes =
|
|
FLAGS_level_compaction_dynamic_level_bytes;
|
|
options.max_bytes_for_level_multiplier =
|
|
FLAGS_max_bytes_for_level_multiplier;
|
|
options.filter_deletes = FLAGS_filter_deletes;
|
|
if ((FLAGS_prefix_size == 0) && (FLAGS_rep_factory == kPrefixHash ||
|
|
FLAGS_rep_factory == kHashLinkedList)) {
|
|
fprintf(stderr, "prefix_size should be non-zero if PrefixHash or "
|
|
"HashLinkedList memtablerep is used\n");
|
|
exit(1);
|
|
}
|
|
switch (FLAGS_rep_factory) {
|
|
case kSkipList:
|
|
options.memtable_factory.reset(new SkipListFactory(
|
|
FLAGS_skip_list_lookahead));
|
|
break;
|
|
#ifndef ROCKSDB_LITE
|
|
case kPrefixHash:
|
|
options.memtable_factory.reset(
|
|
NewHashSkipListRepFactory(FLAGS_hash_bucket_count));
|
|
break;
|
|
case kHashLinkedList:
|
|
options.memtable_factory.reset(NewHashLinkListRepFactory(
|
|
FLAGS_hash_bucket_count));
|
|
break;
|
|
case kVectorRep:
|
|
options.memtable_factory.reset(
|
|
new VectorRepFactory
|
|
);
|
|
break;
|
|
case kCuckoo:
|
|
options.memtable_factory.reset(NewHashCuckooRepFactory(
|
|
options.write_buffer_size, FLAGS_key_size + FLAGS_value_size));
|
|
break;
|
|
#else
|
|
default:
|
|
fprintf(stderr, "Only skip list is supported in lite mode\n");
|
|
exit(1);
|
|
#endif // ROCKSDB_LITE
|
|
}
|
|
if (FLAGS_use_plain_table) {
|
|
#ifndef ROCKSDB_LITE
|
|
if (FLAGS_rep_factory != kPrefixHash &&
|
|
FLAGS_rep_factory != kHashLinkedList) {
|
|
fprintf(stderr, "Waring: plain table is used with skipList\n");
|
|
}
|
|
if (!FLAGS_mmap_read && !FLAGS_mmap_write) {
|
|
fprintf(stderr, "plain table format requires mmap to operate\n");
|
|
exit(1);
|
|
}
|
|
|
|
int bloom_bits_per_key = FLAGS_bloom_bits;
|
|
if (bloom_bits_per_key < 0) {
|
|
bloom_bits_per_key = 0;
|
|
}
|
|
|
|
PlainTableOptions plain_table_options;
|
|
plain_table_options.user_key_len = FLAGS_key_size;
|
|
plain_table_options.bloom_bits_per_key = bloom_bits_per_key;
|
|
plain_table_options.hash_table_ratio = 0.75;
|
|
options.table_factory = std::shared_ptr<TableFactory>(
|
|
NewPlainTableFactory(plain_table_options));
|
|
#else
|
|
fprintf(stderr, "Plain table is not supported in lite mode\n");
|
|
exit(1);
|
|
#endif // ROCKSDB_LITE
|
|
} else if (FLAGS_use_cuckoo_table) {
|
|
#ifndef ROCKSDB_LITE
|
|
if (FLAGS_cuckoo_hash_ratio > 1 || FLAGS_cuckoo_hash_ratio < 0) {
|
|
fprintf(stderr, "Invalid cuckoo_hash_ratio\n");
|
|
exit(1);
|
|
}
|
|
rocksdb::CuckooTableOptions table_options;
|
|
table_options.hash_table_ratio = FLAGS_cuckoo_hash_ratio;
|
|
table_options.identity_as_first_hash = FLAGS_identity_as_first_hash;
|
|
options.table_factory = std::shared_ptr<TableFactory>(
|
|
NewCuckooTableFactory(table_options));
|
|
#else
|
|
fprintf(stderr, "Cuckoo table is not supported in lite mode\n");
|
|
exit(1);
|
|
#endif // ROCKSDB_LITE
|
|
} else {
|
|
BlockBasedTableOptions block_based_options;
|
|
if (FLAGS_use_hash_search) {
|
|
if (FLAGS_prefix_size == 0) {
|
|
fprintf(stderr,
|
|
"prefix_size not assigned when enable use_hash_search \n");
|
|
exit(1);
|
|
}
|
|
block_based_options.index_type = BlockBasedTableOptions::kHashSearch;
|
|
} else {
|
|
block_based_options.index_type = BlockBasedTableOptions::kBinarySearch;
|
|
}
|
|
if (cache_ == nullptr) {
|
|
block_based_options.no_block_cache = true;
|
|
}
|
|
block_based_options.block_cache = cache_;
|
|
block_based_options.block_cache_compressed = compressed_cache_;
|
|
block_based_options.block_size = FLAGS_block_size;
|
|
block_based_options.block_restart_interval = FLAGS_block_restart_interval;
|
|
block_based_options.filter_policy = filter_policy_;
|
|
block_based_options.format_version = 2;
|
|
options.table_factory.reset(
|
|
NewBlockBasedTableFactory(block_based_options));
|
|
}
|
|
if (FLAGS_max_bytes_for_level_multiplier_additional_v.size() > 0) {
|
|
if (FLAGS_max_bytes_for_level_multiplier_additional_v.size() !=
|
|
(unsigned int)FLAGS_num_levels) {
|
|
fprintf(stderr, "Insufficient number of fanouts specified %d\n",
|
|
(int)FLAGS_max_bytes_for_level_multiplier_additional_v.size());
|
|
exit(1);
|
|
}
|
|
options.max_bytes_for_level_multiplier_additional =
|
|
FLAGS_max_bytes_for_level_multiplier_additional_v;
|
|
}
|
|
options.level0_stop_writes_trigger = FLAGS_level0_stop_writes_trigger;
|
|
options.level0_file_num_compaction_trigger =
|
|
FLAGS_level0_file_num_compaction_trigger;
|
|
options.level0_slowdown_writes_trigger =
|
|
FLAGS_level0_slowdown_writes_trigger;
|
|
options.compression = FLAGS_compression_type_e;
|
|
options.compression_opts.level = FLAGS_compression_level;
|
|
options.WAL_ttl_seconds = FLAGS_wal_ttl_seconds;
|
|
options.WAL_size_limit_MB = FLAGS_wal_size_limit_MB;
|
|
options.max_total_wal_size = FLAGS_max_total_wal_size;
|
|
|
|
if (FLAGS_min_level_to_compress >= 0) {
|
|
assert(FLAGS_min_level_to_compress <= FLAGS_num_levels);
|
|
options.compression_per_level.resize(FLAGS_num_levels);
|
|
for (int i = 0; i < FLAGS_min_level_to_compress; i++) {
|
|
options.compression_per_level[i] = kNoCompression;
|
|
}
|
|
for (int i = FLAGS_min_level_to_compress;
|
|
i < FLAGS_num_levels; i++) {
|
|
options.compression_per_level[i] = FLAGS_compression_type_e;
|
|
}
|
|
}
|
|
options.soft_rate_limit = FLAGS_soft_rate_limit;
|
|
options.hard_rate_limit = FLAGS_hard_rate_limit;
|
|
options.delayed_write_rate = FLAGS_delayed_write_rate;
|
|
options.rate_limit_delay_max_milliseconds =
|
|
FLAGS_rate_limit_delay_max_milliseconds;
|
|
options.table_cache_numshardbits = FLAGS_table_cache_numshardbits;
|
|
options.max_grandparent_overlap_factor =
|
|
FLAGS_max_grandparent_overlap_factor;
|
|
options.disable_auto_compactions = FLAGS_disable_auto_compactions;
|
|
options.source_compaction_factor = FLAGS_source_compaction_factor;
|
|
|
|
// fill storage options
|
|
options.allow_os_buffer = FLAGS_bufferedio;
|
|
options.allow_mmap_reads = FLAGS_mmap_read;
|
|
options.allow_mmap_writes = FLAGS_mmap_write;
|
|
options.advise_random_on_open = FLAGS_advise_random_on_open;
|
|
options.access_hint_on_compaction_start = FLAGS_compaction_fadvice_e;
|
|
options.use_adaptive_mutex = FLAGS_use_adaptive_mutex;
|
|
options.bytes_per_sync = FLAGS_bytes_per_sync;
|
|
options.wal_bytes_per_sync = FLAGS_wal_bytes_per_sync;
|
|
|
|
// merge operator options
|
|
options.merge_operator = MergeOperators::CreateFromStringId(
|
|
FLAGS_merge_operator);
|
|
if (options.merge_operator == nullptr && !FLAGS_merge_operator.empty()) {
|
|
fprintf(stderr, "invalid merge operator: %s\n",
|
|
FLAGS_merge_operator.c_str());
|
|
exit(1);
|
|
}
|
|
options.max_successive_merges = FLAGS_max_successive_merges;
|
|
|
|
// set universal style compaction configurations, if applicable
|
|
if (FLAGS_universal_size_ratio != 0) {
|
|
options.compaction_options_universal.size_ratio =
|
|
FLAGS_universal_size_ratio;
|
|
}
|
|
if (FLAGS_universal_min_merge_width != 0) {
|
|
options.compaction_options_universal.min_merge_width =
|
|
FLAGS_universal_min_merge_width;
|
|
}
|
|
if (FLAGS_universal_max_merge_width != 0) {
|
|
options.compaction_options_universal.max_merge_width =
|
|
FLAGS_universal_max_merge_width;
|
|
}
|
|
if (FLAGS_universal_max_size_amplification_percent != 0) {
|
|
options.compaction_options_universal.max_size_amplification_percent =
|
|
FLAGS_universal_max_size_amplification_percent;
|
|
}
|
|
if (FLAGS_universal_compression_size_percent != -1) {
|
|
options.compaction_options_universal.compression_size_percent =
|
|
FLAGS_universal_compression_size_percent;
|
|
}
|
|
if (FLAGS_thread_status_per_interval > 0) {
|
|
options.enable_thread_tracking = true;
|
|
}
|
|
if (FLAGS_rate_limiter_bytes_per_sec > 0) {
|
|
options.rate_limiter.reset(
|
|
NewGenericRateLimiter(FLAGS_rate_limiter_bytes_per_sec));
|
|
}
|
|
|
|
if (FLAGS_readonly && FLAGS_transaction_db) {
|
|
fprintf(stderr, "Cannot use readonly flag with transaction_db\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (FLAGS_num_multi_db <= 1) {
|
|
OpenDb(options, FLAGS_db, &db_);
|
|
} else {
|
|
multi_dbs_.clear();
|
|
multi_dbs_.resize(FLAGS_num_multi_db);
|
|
for (int i = 0; i < FLAGS_num_multi_db; i++) {
|
|
OpenDb(options, GetDbNameForMultiple(FLAGS_db, i), &multi_dbs_[i]);
|
|
}
|
|
}
|
|
if (FLAGS_min_level_to_compress >= 0) {
|
|
options.compression_per_level.clear();
|
|
}
|
|
}
|
|
|
|
void OpenDb(const Options& options, const std::string& db_name,
|
|
DBWithColumnFamilies* db) {
|
|
Status s;
|
|
// Open with column families if necessary.
|
|
if (FLAGS_num_column_families > 1) {
|
|
size_t num_hot = FLAGS_num_column_families;
|
|
if (FLAGS_num_hot_column_families > 0 &&
|
|
FLAGS_num_hot_column_families < FLAGS_num_column_families) {
|
|
num_hot = FLAGS_num_hot_column_families;
|
|
} else {
|
|
FLAGS_num_hot_column_families = FLAGS_num_column_families;
|
|
}
|
|
std::vector<ColumnFamilyDescriptor> column_families;
|
|
for (size_t i = 0; i < num_hot; i++) {
|
|
column_families.push_back(ColumnFamilyDescriptor(
|
|
ColumnFamilyName(i), ColumnFamilyOptions(options)));
|
|
}
|
|
if (FLAGS_readonly) {
|
|
s = DB::OpenForReadOnly(options, db_name, column_families,
|
|
&db->cfh, &db->db);
|
|
} else if (FLAGS_transaction_db) {
|
|
s = OptimisticTransactionDB::Open(options, db_name, column_families,
|
|
&db->cfh, &db->txn_db);
|
|
if (s.ok()) {
|
|
db->db = db->txn_db->GetBaseDB();
|
|
}
|
|
} else {
|
|
s = DB::Open(options, db_name, column_families, &db->cfh, &db->db);
|
|
}
|
|
db->cfh.resize(FLAGS_num_column_families);
|
|
db->num_created = num_hot;
|
|
db->num_hot = num_hot;
|
|
} else if (FLAGS_readonly) {
|
|
s = DB::OpenForReadOnly(options, db_name, &db->db);
|
|
} else if (FLAGS_transaction_db) {
|
|
s = OptimisticTransactionDB::Open(options, db_name, &db->txn_db);
|
|
if (s.ok()) {
|
|
db->db = db->txn_db->GetBaseDB();
|
|
}
|
|
} else {
|
|
s = DB::Open(options, db_name, &db->db);
|
|
}
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "open error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
enum WriteMode {
|
|
RANDOM, SEQUENTIAL, UNIQUE_RANDOM
|
|
};
|
|
|
|
void WriteSeq(ThreadState* thread) {
|
|
DoWrite(thread, SEQUENTIAL);
|
|
}
|
|
|
|
void WriteRandom(ThreadState* thread) {
|
|
DoWrite(thread, RANDOM);
|
|
}
|
|
|
|
void WriteUniqueRandom(ThreadState* thread) {
|
|
DoWrite(thread, UNIQUE_RANDOM);
|
|
}
|
|
|
|
class KeyGenerator {
|
|
public:
|
|
KeyGenerator(Random64* rand, WriteMode mode,
|
|
uint64_t num, uint64_t num_per_set = 64 * 1024)
|
|
: rand_(rand),
|
|
mode_(mode),
|
|
num_(num),
|
|
next_(0) {
|
|
if (mode_ == UNIQUE_RANDOM) {
|
|
// NOTE: if memory consumption of this approach becomes a concern,
|
|
// we can either break it into pieces and only random shuffle a section
|
|
// each time. Alternatively, use a bit map implementation
|
|
// (https://reviews.facebook.net/differential/diff/54627/)
|
|
values_.resize(num_);
|
|
for (uint64_t i = 0; i < num_; ++i) {
|
|
values_[i] = i;
|
|
}
|
|
std::shuffle(
|
|
values_.begin(), values_.end(),
|
|
std::default_random_engine(static_cast<unsigned int>(FLAGS_seed)));
|
|
}
|
|
}
|
|
|
|
uint64_t Next() {
|
|
switch (mode_) {
|
|
case SEQUENTIAL:
|
|
return next_++;
|
|
case RANDOM:
|
|
return rand_->Next() % num_;
|
|
case UNIQUE_RANDOM:
|
|
return values_[next_++];
|
|
}
|
|
assert(false);
|
|
return std::numeric_limits<uint64_t>::max();
|
|
}
|
|
|
|
private:
|
|
Random64* rand_;
|
|
WriteMode mode_;
|
|
const uint64_t num_;
|
|
uint64_t next_;
|
|
std::vector<uint64_t> values_;
|
|
};
|
|
|
|
DB* SelectDB(ThreadState* thread) {
|
|
return SelectDBWithCfh(thread)->db;
|
|
}
|
|
|
|
DBWithColumnFamilies* SelectDBWithCfh(ThreadState* thread) {
|
|
return SelectDBWithCfh(thread->rand.Next());
|
|
}
|
|
|
|
DBWithColumnFamilies* SelectDBWithCfh(uint64_t rand_int) {
|
|
if (db_.db != nullptr) {
|
|
return &db_;
|
|
} else {
|
|
return &multi_dbs_[rand_int % multi_dbs_.size()];
|
|
}
|
|
}
|
|
|
|
void DoWrite(ThreadState* thread, WriteMode write_mode) {
|
|
const int test_duration = write_mode == RANDOM ? FLAGS_duration : 0;
|
|
const int64_t num_ops = writes_ == 0 ? num_ : writes_;
|
|
|
|
size_t num_key_gens = 1;
|
|
if (db_.db == nullptr) {
|
|
num_key_gens = multi_dbs_.size();
|
|
}
|
|
std::vector<std::unique_ptr<KeyGenerator>> key_gens(num_key_gens);
|
|
int64_t max_ops = num_ops * num_key_gens;
|
|
int64_t ops_per_stage = max_ops;
|
|
if (FLAGS_num_column_families > 1 && FLAGS_num_hot_column_families > 0) {
|
|
ops_per_stage = (max_ops - 1) / (FLAGS_num_column_families /
|
|
FLAGS_num_hot_column_families) +
|
|
1;
|
|
}
|
|
|
|
Duration duration(test_duration, max_ops, ops_per_stage);
|
|
for (size_t i = 0; i < num_key_gens; i++) {
|
|
key_gens[i].reset(new KeyGenerator(&(thread->rand), write_mode, num_,
|
|
ops_per_stage));
|
|
}
|
|
|
|
if (num_ != FLAGS_num) {
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%" PRIu64 " ops)", num_);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
RandomGenerator gen;
|
|
WriteBatch batch;
|
|
Status s;
|
|
int64_t bytes = 0;
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
int64_t stage = 0;
|
|
while (!duration.Done(entries_per_batch_)) {
|
|
if (duration.GetStage() != stage) {
|
|
stage = duration.GetStage();
|
|
if (db_.db != nullptr) {
|
|
db_.CreateNewCf(open_options_, stage);
|
|
} else {
|
|
for (auto& db : multi_dbs_) {
|
|
db.CreateNewCf(open_options_, stage);
|
|
}
|
|
}
|
|
}
|
|
size_t id = thread->rand.Next() % num_key_gens;
|
|
DBWithColumnFamilies* db_with_cfh = SelectDBWithCfh(id);
|
|
batch.Clear();
|
|
for (int64_t j = 0; j < entries_per_batch_; j++) {
|
|
int64_t rand_num = key_gens[id]->Next();
|
|
GenerateKeyFromInt(rand_num, FLAGS_num, &key);
|
|
if (FLAGS_num_column_families <= 1) {
|
|
batch.Put(key, gen.Generate(value_size_));
|
|
} else {
|
|
// We use same rand_num as seed for key and column family so that we
|
|
// can deterministically find the cfh corresponding to a particular
|
|
// key while reading the key.
|
|
batch.Put(db_with_cfh->GetCfh(rand_num), key,
|
|
gen.Generate(value_size_));
|
|
}
|
|
bytes += value_size_ + key_size_;
|
|
}
|
|
s = db_with_cfh->db->Write(write_options_, &batch);
|
|
thread->stats.FinishedOps(db_with_cfh, db_with_cfh->db,
|
|
entries_per_batch_);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
}
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
|
|
void ReadSequential(ThreadState* thread) {
|
|
if (db_.db != nullptr) {
|
|
ReadSequential(thread, db_.db);
|
|
} else {
|
|
for (const auto& db_with_cfh : multi_dbs_) {
|
|
ReadSequential(thread, db_with_cfh.db);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ReadSequential(ThreadState* thread, DB* db) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
options.tailing = FLAGS_use_tailing_iterator;
|
|
|
|
Iterator* iter = db->NewIterator(options);
|
|
int64_t i = 0;
|
|
int64_t bytes = 0;
|
|
for (iter->SeekToFirst(); i < reads_ && iter->Valid(); iter->Next()) {
|
|
bytes += iter->key().size() + iter->value().size();
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
++i;
|
|
}
|
|
delete iter;
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
|
|
void ReadReverse(ThreadState* thread) {
|
|
if (db_.db != nullptr) {
|
|
ReadReverse(thread, db_.db);
|
|
} else {
|
|
for (const auto& db_with_cfh : multi_dbs_) {
|
|
ReadReverse(thread, db_with_cfh.db);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ReadReverse(ThreadState* thread, DB* db) {
|
|
Iterator* iter = db->NewIterator(ReadOptions(FLAGS_verify_checksum, true));
|
|
int64_t i = 0;
|
|
int64_t bytes = 0;
|
|
for (iter->SeekToLast(); i < reads_ && iter->Valid(); iter->Prev()) {
|
|
bytes += iter->key().size() + iter->value().size();
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
++i;
|
|
}
|
|
delete iter;
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
|
|
void ReadRandomFast(ThreadState* thread) {
|
|
int64_t read = 0;
|
|
int64_t found = 0;
|
|
int64_t nonexist = 0;
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
std::string value;
|
|
DB* db = SelectDBWithCfh(thread)->db;
|
|
|
|
int64_t pot = 1;
|
|
while (pot < FLAGS_num) {
|
|
pot <<= 1;
|
|
}
|
|
|
|
Duration duration(FLAGS_duration, reads_);
|
|
do {
|
|
for (int i = 0; i < 100; ++i) {
|
|
int64_t key_rand = thread->rand.Next() & (pot - 1);
|
|
GenerateKeyFromInt(key_rand, FLAGS_num, &key);
|
|
++read;
|
|
auto status = db->Get(options, key, &value);
|
|
if (status.ok()) {
|
|
++found;
|
|
} else if (!status.IsNotFound()) {
|
|
fprintf(stderr, "Get returned an error: %s\n",
|
|
status.ToString().c_str());
|
|
abort();
|
|
}
|
|
if (key_rand >= FLAGS_num) {
|
|
++nonexist;
|
|
}
|
|
}
|
|
thread->stats.FinishedOps(nullptr, db, 100);
|
|
} while (!duration.Done(100));
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%" PRIu64 " of %" PRIu64 " found, "
|
|
"issued %" PRIu64 " non-exist keys)\n",
|
|
found, read, nonexist);
|
|
|
|
thread->stats.AddMessage(msg);
|
|
|
|
if (FLAGS_perf_level > 0) {
|
|
thread->stats.AddMessage(perf_context.ToString());
|
|
}
|
|
}
|
|
|
|
int64_t GetRandomKey(Random64* rand) {
|
|
uint64_t rand_int = rand->Next();
|
|
int64_t key_rand;
|
|
if (read_random_exp_range_ == 0) {
|
|
key_rand = rand_int % FLAGS_num;
|
|
} else {
|
|
const uint64_t kBigInt = static_cast<uint64_t>(1U) << 62;
|
|
long double order = -static_cast<long double>(rand_int % kBigInt) /
|
|
static_cast<long double>(kBigInt) *
|
|
read_random_exp_range_;
|
|
long double exp_ran = std::exp(order);
|
|
uint64_t rand_num =
|
|
static_cast<int64_t>(exp_ran * static_cast<long double>(FLAGS_num));
|
|
// Map to a different number to avoid locality.
|
|
const uint64_t kBigPrime = 0x5bd1e995;
|
|
// Overflow is like %(2^64). Will have little impact of results.
|
|
key_rand = static_cast<int64_t>((rand_num * kBigPrime) % FLAGS_num);
|
|
}
|
|
return key_rand;
|
|
}
|
|
|
|
void ReadRandom(ThreadState* thread) {
|
|
int64_t read = 0;
|
|
int64_t found = 0;
|
|
int64_t bytes = 0;
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
std::string value;
|
|
|
|
Duration duration(FLAGS_duration, reads_);
|
|
while (!duration.Done(1)) {
|
|
DBWithColumnFamilies* db_with_cfh = SelectDBWithCfh(thread);
|
|
// We use same key_rand as seed for key and column family so that we can
|
|
// deterministically find the cfh corresponding to a particular key, as it
|
|
// is done in DoWrite method.
|
|
int64_t key_rand = GetRandomKey(&thread->rand);
|
|
GenerateKeyFromInt(key_rand, FLAGS_num, &key);
|
|
read++;
|
|
Status s;
|
|
if (FLAGS_num_column_families > 1) {
|
|
s = db_with_cfh->db->Get(options, db_with_cfh->GetCfh(key_rand), key,
|
|
&value);
|
|
} else {
|
|
s = db_with_cfh->db->Get(options, key, &value);
|
|
}
|
|
if (s.ok()) {
|
|
found++;
|
|
bytes += key.size() + value.size();
|
|
} else if (!s.IsNotFound()) {
|
|
fprintf(stderr, "Get returned an error: %s\n", s.ToString().c_str());
|
|
abort();
|
|
}
|
|
thread->stats.FinishedOps(db_with_cfh, db_with_cfh->db, 1);
|
|
}
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%" PRIu64 " of %" PRIu64 " found)\n",
|
|
found, read);
|
|
|
|
thread->stats.AddBytes(bytes);
|
|
thread->stats.AddMessage(msg);
|
|
|
|
if (FLAGS_perf_level > 0) {
|
|
thread->stats.AddMessage(perf_context.ToString());
|
|
}
|
|
}
|
|
|
|
// Calls MultiGet over a list of keys from a random distribution.
|
|
// Returns the total number of keys found.
|
|
void MultiReadRandom(ThreadState* thread) {
|
|
int64_t read = 0;
|
|
int64_t found = 0;
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
std::vector<Slice> keys;
|
|
std::vector<std::unique_ptr<const char[]> > key_guards;
|
|
std::vector<std::string> values(entries_per_batch_);
|
|
while (static_cast<int64_t>(keys.size()) < entries_per_batch_) {
|
|
key_guards.push_back(std::move(std::unique_ptr<const char[]>()));
|
|
keys.push_back(AllocateKey(&key_guards.back()));
|
|
}
|
|
|
|
Duration duration(FLAGS_duration, reads_);
|
|
while (!duration.Done(1)) {
|
|
DB* db = SelectDB(thread);
|
|
for (int64_t i = 0; i < entries_per_batch_; ++i) {
|
|
GenerateKeyFromInt(GetRandomKey(&thread->rand), FLAGS_num, &keys[i]);
|
|
}
|
|
std::vector<Status> statuses = db->MultiGet(options, keys, &values);
|
|
assert(static_cast<int64_t>(statuses.size()) == entries_per_batch_);
|
|
|
|
read += entries_per_batch_;
|
|
for (int64_t i = 0; i < entries_per_batch_; ++i) {
|
|
if (statuses[i].ok()) {
|
|
++found;
|
|
} else if (!statuses[i].IsNotFound()) {
|
|
fprintf(stderr, "MultiGet returned an error: %s\n",
|
|
statuses[i].ToString().c_str());
|
|
abort();
|
|
}
|
|
}
|
|
thread->stats.FinishedOps(nullptr, db, entries_per_batch_);
|
|
}
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%" PRIu64 " of %" PRIu64 " found)",
|
|
found, read);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
void IteratorCreation(ThreadState* thread) {
|
|
Duration duration(FLAGS_duration, reads_);
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
while (!duration.Done(1)) {
|
|
DB* db = SelectDB(thread);
|
|
Iterator* iter = db->NewIterator(options);
|
|
delete iter;
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
}
|
|
}
|
|
|
|
void IteratorCreationWhileWriting(ThreadState* thread) {
|
|
if (thread->tid > 0) {
|
|
IteratorCreation(thread);
|
|
} else {
|
|
BGWriter(thread, kPut);
|
|
}
|
|
}
|
|
|
|
void SeekRandom(ThreadState* thread) {
|
|
int64_t read = 0;
|
|
int64_t found = 0;
|
|
int64_t bytes = 0;
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
options.tailing = FLAGS_use_tailing_iterator;
|
|
|
|
Iterator* single_iter = nullptr;
|
|
std::vector<Iterator*> multi_iters;
|
|
if (db_.db != nullptr) {
|
|
single_iter = db_.db->NewIterator(options);
|
|
} else {
|
|
for (const auto& db_with_cfh : multi_dbs_) {
|
|
multi_iters.push_back(db_with_cfh.db->NewIterator(options));
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
|
|
Duration duration(FLAGS_duration, reads_);
|
|
char value_buffer[256];
|
|
while (!duration.Done(1)) {
|
|
if (!FLAGS_use_tailing_iterator) {
|
|
if (db_.db != nullptr) {
|
|
delete single_iter;
|
|
single_iter = db_.db->NewIterator(options);
|
|
} else {
|
|
for (auto iter : multi_iters) {
|
|
delete iter;
|
|
}
|
|
multi_iters.clear();
|
|
for (const auto& db_with_cfh : multi_dbs_) {
|
|
multi_iters.push_back(db_with_cfh.db->NewIterator(options));
|
|
}
|
|
}
|
|
}
|
|
// Pick a Iterator to use
|
|
Iterator* iter_to_use = single_iter;
|
|
if (single_iter == nullptr) {
|
|
iter_to_use = multi_iters[thread->rand.Next() % multi_iters.size()];
|
|
}
|
|
|
|
GenerateKeyFromInt(thread->rand.Next() % FLAGS_num, FLAGS_num, &key);
|
|
iter_to_use->Seek(key);
|
|
read++;
|
|
if (iter_to_use->Valid() && iter_to_use->key().compare(key) == 0) {
|
|
found++;
|
|
}
|
|
|
|
for (int j = 0; j < FLAGS_seek_nexts && iter_to_use->Valid(); ++j) {
|
|
// Copy out iterator's value to make sure we read them.
|
|
Slice value = iter_to_use->value();
|
|
memcpy(value_buffer, value.data(),
|
|
std::min(value.size(), sizeof(value_buffer)));
|
|
bytes += iter_to_use->key().size() + iter_to_use->value().size();
|
|
|
|
if (!FLAGS_reverse_iterator) {
|
|
iter_to_use->Next();
|
|
} else {
|
|
iter_to_use->Prev();
|
|
}
|
|
assert(iter_to_use->status().ok());
|
|
}
|
|
|
|
thread->stats.FinishedOps(&db_, db_.db, 1);
|
|
}
|
|
delete single_iter;
|
|
for (auto iter : multi_iters) {
|
|
delete iter;
|
|
}
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%" PRIu64 " of %" PRIu64 " found)\n",
|
|
found, read);
|
|
thread->stats.AddBytes(bytes);
|
|
thread->stats.AddMessage(msg);
|
|
if (FLAGS_perf_level > 0) {
|
|
thread->stats.AddMessage(perf_context.ToString());
|
|
}
|
|
}
|
|
|
|
void SeekRandomWhileWriting(ThreadState* thread) {
|
|
if (thread->tid > 0) {
|
|
SeekRandom(thread);
|
|
} else {
|
|
BGWriter(thread, kPut);
|
|
}
|
|
}
|
|
|
|
void SeekRandomWhileMerging(ThreadState* thread) {
|
|
if (thread->tid > 0) {
|
|
SeekRandom(thread);
|
|
} else {
|
|
BGWriter(thread, kMerge);
|
|
}
|
|
}
|
|
|
|
void DoDelete(ThreadState* thread, bool seq) {
|
|
WriteBatch batch;
|
|
Duration duration(seq ? 0 : FLAGS_duration, num_);
|
|
int64_t i = 0;
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
|
|
while (!duration.Done(entries_per_batch_)) {
|
|
DB* db = SelectDB(thread);
|
|
batch.Clear();
|
|
for (int64_t j = 0; j < entries_per_batch_; ++j) {
|
|
const int64_t k = seq ? i + j : (thread->rand.Next() % FLAGS_num);
|
|
GenerateKeyFromInt(k, FLAGS_num, &key);
|
|
batch.Delete(key);
|
|
}
|
|
auto s = db->Write(write_options_, &batch);
|
|
thread->stats.FinishedOps(nullptr, db, entries_per_batch_);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "del error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
i += entries_per_batch_;
|
|
}
|
|
}
|
|
|
|
void DeleteSeq(ThreadState* thread) {
|
|
DoDelete(thread, true);
|
|
}
|
|
|
|
void DeleteRandom(ThreadState* thread) {
|
|
DoDelete(thread, false);
|
|
}
|
|
|
|
void ReadWhileWriting(ThreadState* thread) {
|
|
if (thread->tid > 0) {
|
|
ReadRandom(thread);
|
|
} else {
|
|
BGWriter(thread, kPut);
|
|
}
|
|
}
|
|
|
|
void ReadWhileMerging(ThreadState* thread) {
|
|
if (thread->tid > 0) {
|
|
ReadRandom(thread);
|
|
} else {
|
|
BGWriter(thread, kMerge);
|
|
}
|
|
}
|
|
|
|
void BGWriter(ThreadState* thread, enum PutOrMerge write_merge) {
|
|
// Special thread that keeps writing until other threads are done.
|
|
RandomGenerator gen;
|
|
double last = FLAGS_env->NowMicros();
|
|
int writes_per_second_by_10 = 0;
|
|
int num_writes = 0;
|
|
int64_t bytes = 0;
|
|
|
|
// --writes_per_second rate limit is enforced per 100 milliseconds
|
|
// intervals to avoid a burst of writes at the start of each second.
|
|
|
|
if (FLAGS_writes_per_second > 0)
|
|
writes_per_second_by_10 = FLAGS_writes_per_second / 10;
|
|
|
|
// Don't merge stats from this thread with the readers.
|
|
thread->stats.SetExcludeFromMerge();
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
|
|
while (true) {
|
|
DB* db = SelectDB(thread);
|
|
{
|
|
MutexLock l(&thread->shared->mu);
|
|
if (thread->shared->num_done + 1 >= thread->shared->num_initialized) {
|
|
// Other threads have finished
|
|
break;
|
|
}
|
|
}
|
|
|
|
GenerateKeyFromInt(thread->rand.Next() % FLAGS_num, FLAGS_num, &key);
|
|
Status s;
|
|
|
|
if (write_merge == kPut) {
|
|
s = db->Put(write_options_, key, gen.Generate(value_size_));
|
|
} else {
|
|
s = db->Merge(write_options_, key, gen.Generate(value_size_));
|
|
}
|
|
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put or merge error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
bytes += key.size() + value_size_;
|
|
thread->stats.FinishedOps(&db_, db_.db, 1);
|
|
|
|
++num_writes;
|
|
if (writes_per_second_by_10 && num_writes >= writes_per_second_by_10) {
|
|
double now = FLAGS_env->NowMicros();
|
|
double usecs_since_last = now - last;
|
|
|
|
num_writes = 0;
|
|
last = now;
|
|
|
|
if (usecs_since_last < 100000.0) {
|
|
FLAGS_env->SleepForMicroseconds(100000.0 - usecs_since_last);
|
|
last = FLAGS_env->NowMicros();
|
|
}
|
|
}
|
|
}
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
|
|
// Given a key K and value V, this puts (K+"0", V), (K+"1", V), (K+"2", V)
|
|
// in DB atomically i.e in a single batch. Also refer GetMany.
|
|
Status PutMany(DB* db, const WriteOptions& writeoptions, const Slice& key,
|
|
const Slice& value) {
|
|
std::string suffixes[3] = {"2", "1", "0"};
|
|
std::string keys[3];
|
|
|
|
WriteBatch batch;
|
|
Status s;
|
|
for (int i = 0; i < 3; i++) {
|
|
keys[i] = key.ToString() + suffixes[i];
|
|
batch.Put(keys[i], value);
|
|
}
|
|
|
|
s = db->Write(writeoptions, &batch);
|
|
return s;
|
|
}
|
|
|
|
|
|
// Given a key K, this deletes (K+"0", V), (K+"1", V), (K+"2", V)
|
|
// in DB atomically i.e in a single batch. Also refer GetMany.
|
|
Status DeleteMany(DB* db, const WriteOptions& writeoptions,
|
|
const Slice& key) {
|
|
std::string suffixes[3] = {"1", "2", "0"};
|
|
std::string keys[3];
|
|
|
|
WriteBatch batch;
|
|
Status s;
|
|
for (int i = 0; i < 3; i++) {
|
|
keys[i] = key.ToString() + suffixes[i];
|
|
batch.Delete(keys[i]);
|
|
}
|
|
|
|
s = db->Write(writeoptions, &batch);
|
|
return s;
|
|
}
|
|
|
|
// Given a key K and value V, this gets values for K+"0", K+"1" and K+"2"
|
|
// in the same snapshot, and verifies that all the values are identical.
|
|
// ASSUMES that PutMany was used to put (K, V) into the DB.
|
|
Status GetMany(DB* db, const ReadOptions& readoptions, const Slice& key,
|
|
std::string* value) {
|
|
std::string suffixes[3] = {"0", "1", "2"};
|
|
std::string keys[3];
|
|
Slice key_slices[3];
|
|
std::string values[3];
|
|
ReadOptions readoptionscopy = readoptions;
|
|
readoptionscopy.snapshot = db->GetSnapshot();
|
|
Status s;
|
|
for (int i = 0; i < 3; i++) {
|
|
keys[i] = key.ToString() + suffixes[i];
|
|
key_slices[i] = keys[i];
|
|
s = db->Get(readoptionscopy, key_slices[i], value);
|
|
if (!s.ok() && !s.IsNotFound()) {
|
|
fprintf(stderr, "get error: %s\n", s.ToString().c_str());
|
|
values[i] = "";
|
|
// we continue after error rather than exiting so that we can
|
|
// find more errors if any
|
|
} else if (s.IsNotFound()) {
|
|
values[i] = "";
|
|
} else {
|
|
values[i] = *value;
|
|
}
|
|
}
|
|
db->ReleaseSnapshot(readoptionscopy.snapshot);
|
|
|
|
if ((values[0] != values[1]) || (values[1] != values[2])) {
|
|
fprintf(stderr, "inconsistent values for key %s: %s, %s, %s\n",
|
|
key.ToString().c_str(), values[0].c_str(), values[1].c_str(),
|
|
values[2].c_str());
|
|
// we continue after error rather than exiting so that we can
|
|
// find more errors if any
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
// Differs from readrandomwriterandom in the following ways:
|
|
// (a) Uses GetMany/PutMany to read/write key values. Refer to those funcs.
|
|
// (b) Does deletes as well (per FLAGS_deletepercent)
|
|
// (c) In order to achieve high % of 'found' during lookups, and to do
|
|
// multiple writes (including puts and deletes) it uses upto
|
|
// FLAGS_numdistinct distinct keys instead of FLAGS_num distinct keys.
|
|
// (d) Does not have a MultiGet option.
|
|
void RandomWithVerify(ThreadState* thread) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
RandomGenerator gen;
|
|
std::string value;
|
|
int64_t found = 0;
|
|
int get_weight = 0;
|
|
int put_weight = 0;
|
|
int delete_weight = 0;
|
|
int64_t gets_done = 0;
|
|
int64_t puts_done = 0;
|
|
int64_t deletes_done = 0;
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
|
|
// the number of iterations is the larger of read_ or write_
|
|
for (int64_t i = 0; i < readwrites_; i++) {
|
|
DB* db = SelectDB(thread);
|
|
if (get_weight == 0 && put_weight == 0 && delete_weight == 0) {
|
|
// one batch completed, reinitialize for next batch
|
|
get_weight = FLAGS_readwritepercent;
|
|
delete_weight = FLAGS_deletepercent;
|
|
put_weight = 100 - get_weight - delete_weight;
|
|
}
|
|
GenerateKeyFromInt(thread->rand.Next() % FLAGS_numdistinct,
|
|
FLAGS_numdistinct, &key);
|
|
if (get_weight > 0) {
|
|
// do all the gets first
|
|
Status s = GetMany(db, options, key, &value);
|
|
if (!s.ok() && !s.IsNotFound()) {
|
|
fprintf(stderr, "getmany error: %s\n", s.ToString().c_str());
|
|
// we continue after error rather than exiting so that we can
|
|
// find more errors if any
|
|
} else if (!s.IsNotFound()) {
|
|
found++;
|
|
}
|
|
get_weight--;
|
|
gets_done++;
|
|
} else if (put_weight > 0) {
|
|
// then do all the corresponding number of puts
|
|
// for all the gets we have done earlier
|
|
Status s = PutMany(db, write_options_, key, gen.Generate(value_size_));
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "putmany error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
put_weight--;
|
|
puts_done++;
|
|
} else if (delete_weight > 0) {
|
|
Status s = DeleteMany(db, write_options_, key);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "deletemany error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
delete_weight--;
|
|
deletes_done++;
|
|
}
|
|
|
|
thread->stats.FinishedOps(&db_, db_.db, 1);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg),
|
|
"( get:%" PRIu64 " put:%" PRIu64 " del:%" PRIu64 " total:%" \
|
|
PRIu64 " found:%" PRIu64 ")",
|
|
gets_done, puts_done, deletes_done, readwrites_, found);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
// This is different from ReadWhileWriting because it does not use
|
|
// an extra thread.
|
|
void ReadRandomWriteRandom(ThreadState* thread) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
RandomGenerator gen;
|
|
std::string value;
|
|
int64_t found = 0;
|
|
int get_weight = 0;
|
|
int put_weight = 0;
|
|
int64_t reads_done = 0;
|
|
int64_t writes_done = 0;
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
|
|
// the number of iterations is the larger of read_ or write_
|
|
while (!duration.Done(1)) {
|
|
DB* db = SelectDB(thread);
|
|
GenerateKeyFromInt(thread->rand.Next() % FLAGS_num, FLAGS_num, &key);
|
|
if (get_weight == 0 && put_weight == 0) {
|
|
// one batch completed, reinitialize for next batch
|
|
get_weight = FLAGS_readwritepercent;
|
|
put_weight = 100 - get_weight;
|
|
}
|
|
if (get_weight > 0) {
|
|
// do all the gets first
|
|
Status s = db->Get(options, key, &value);
|
|
if (!s.ok() && !s.IsNotFound()) {
|
|
fprintf(stderr, "get error: %s\n", s.ToString().c_str());
|
|
// we continue after error rather than exiting so that we can
|
|
// find more errors if any
|
|
} else if (!s.IsNotFound()) {
|
|
found++;
|
|
}
|
|
get_weight--;
|
|
reads_done++;
|
|
} else if (put_weight > 0) {
|
|
// then do all the corresponding number of puts
|
|
// for all the gets we have done earlier
|
|
Status s = db->Put(write_options_, key, gen.Generate(value_size_));
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
put_weight--;
|
|
writes_done++;
|
|
}
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "( reads:%" PRIu64 " writes:%" PRIu64 \
|
|
" total:%" PRIu64 " found:%" PRIu64 ")",
|
|
reads_done, writes_done, readwrites_, found);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
//
|
|
// Read-modify-write for random keys
|
|
void UpdateRandom(ThreadState* thread) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
RandomGenerator gen;
|
|
std::string value;
|
|
int64_t found = 0;
|
|
int64_t bytes = 0;
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
// the number of iterations is the larger of read_ or write_
|
|
while (!duration.Done(1)) {
|
|
DB* db = SelectDB(thread);
|
|
GenerateKeyFromInt(thread->rand.Next() % FLAGS_num, FLAGS_num, &key);
|
|
|
|
auto status = db->Get(options, key, &value);
|
|
if (status.ok()) {
|
|
++found;
|
|
bytes += key.size() + value.size();
|
|
} else if (!status.IsNotFound()) {
|
|
fprintf(stderr, "Get returned an error: %s\n",
|
|
status.ToString().c_str());
|
|
abort();
|
|
}
|
|
|
|
Status s = db->Put(write_options_, key, gen.Generate(value_size_));
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
bytes += key.size() + value_size_;
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg),
|
|
"( updates:%" PRIu64 " found:%" PRIu64 ")", readwrites_, found);
|
|
thread->stats.AddBytes(bytes);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
// Read-modify-write for random keys.
|
|
// Each operation causes the key grow by value_size (simulating an append).
|
|
// Generally used for benchmarking against merges of similar type
|
|
void AppendRandom(ThreadState* thread) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
RandomGenerator gen;
|
|
std::string value;
|
|
int64_t found = 0;
|
|
int64_t bytes = 0;
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
// The number of iterations is the larger of read_ or write_
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
while (!duration.Done(1)) {
|
|
DB* db = SelectDB(thread);
|
|
GenerateKeyFromInt(thread->rand.Next() % FLAGS_num, FLAGS_num, &key);
|
|
|
|
auto status = db->Get(options, key, &value);
|
|
if (status.ok()) {
|
|
++found;
|
|
bytes += key.size() + value.size();
|
|
} else if (!status.IsNotFound()) {
|
|
fprintf(stderr, "Get returned an error: %s\n",
|
|
status.ToString().c_str());
|
|
abort();
|
|
} else {
|
|
// If not existing, then just assume an empty string of data
|
|
value.clear();
|
|
}
|
|
|
|
// Update the value (by appending data)
|
|
Slice operand = gen.Generate(value_size_);
|
|
if (value.size() > 0) {
|
|
// Use a delimeter to match the semantics for StringAppendOperator
|
|
value.append(1,',');
|
|
}
|
|
value.append(operand.data(), operand.size());
|
|
|
|
// Write back to the database
|
|
Status s = db->Put(write_options_, key, value);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
bytes += key.size() + value.size();
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
}
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "( updates:%" PRIu64 " found:%" PRIu64 ")",
|
|
readwrites_, found);
|
|
thread->stats.AddBytes(bytes);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
// Read-modify-write for random keys (using MergeOperator)
|
|
// The merge operator to use should be defined by FLAGS_merge_operator
|
|
// Adjust FLAGS_value_size so that the keys are reasonable for this operator
|
|
// Assumes that the merge operator is non-null (i.e.: is well-defined)
|
|
//
|
|
// For example, use FLAGS_merge_operator="uint64add" and FLAGS_value_size=8
|
|
// to simulate random additions over 64-bit integers using merge.
|
|
//
|
|
// The number of merges on the same key can be controlled by adjusting
|
|
// FLAGS_merge_keys.
|
|
void MergeRandom(ThreadState* thread) {
|
|
RandomGenerator gen;
|
|
int64_t bytes = 0;
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
// The number of iterations is the larger of read_ or write_
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
while (!duration.Done(1)) {
|
|
DB* db = SelectDB(thread);
|
|
GenerateKeyFromInt(thread->rand.Next() % merge_keys_, merge_keys_, &key);
|
|
|
|
Status s = db->Merge(write_options_, key, gen.Generate(value_size_));
|
|
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "merge error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
bytes += key.size() + value_size_;
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
}
|
|
|
|
// Print some statistics
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "( updates:%" PRIu64 ")", readwrites_);
|
|
thread->stats.AddBytes(bytes);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
// Read and merge random keys. The amount of reads and merges are controlled
|
|
// by adjusting FLAGS_num and FLAGS_mergereadpercent. The number of distinct
|
|
// keys (and thus also the number of reads and merges on the same key) can be
|
|
// adjusted with FLAGS_merge_keys.
|
|
//
|
|
// As with MergeRandom, the merge operator to use should be defined by
|
|
// FLAGS_merge_operator.
|
|
void ReadRandomMergeRandom(ThreadState* thread) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
RandomGenerator gen;
|
|
std::string value;
|
|
int64_t num_hits = 0;
|
|
int64_t num_gets = 0;
|
|
int64_t num_merges = 0;
|
|
size_t max_length = 0;
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
// the number of iterations is the larger of read_ or write_
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
while (!duration.Done(1)) {
|
|
DB* db = SelectDB(thread);
|
|
GenerateKeyFromInt(thread->rand.Next() % merge_keys_, merge_keys_, &key);
|
|
|
|
bool do_merge = int(thread->rand.Next() % 100) < FLAGS_mergereadpercent;
|
|
|
|
if (do_merge) {
|
|
Status s = db->Merge(write_options_, key, gen.Generate(value_size_));
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "merge error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
|
|
num_merges++;
|
|
|
|
} else {
|
|
Status s = db->Get(options, key, &value);
|
|
if (value.length() > max_length)
|
|
max_length = value.length();
|
|
|
|
if (!s.ok() && !s.IsNotFound()) {
|
|
fprintf(stderr, "get error: %s\n", s.ToString().c_str());
|
|
// we continue after error rather than exiting so that we can
|
|
// find more errors if any
|
|
} else if (!s.IsNotFound()) {
|
|
num_hits++;
|
|
}
|
|
|
|
num_gets++;
|
|
|
|
}
|
|
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
}
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg),
|
|
"(reads:%" PRIu64 " merges:%" PRIu64 " total:%" PRIu64 " hits:%" \
|
|
PRIu64 " maxlength:%zu)",
|
|
num_gets, num_merges, readwrites_, num_hits, max_length);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
void WriteSeqSeekSeq(ThreadState* thread) {
|
|
writes_ = FLAGS_num;
|
|
DoWrite(thread, SEQUENTIAL);
|
|
// exclude writes from the ops/sec calculation
|
|
thread->stats.Start(thread->tid);
|
|
|
|
DB* db = SelectDB(thread);
|
|
std::unique_ptr<Iterator> iter(
|
|
db->NewIterator(ReadOptions(FLAGS_verify_checksum, true)));
|
|
|
|
std::unique_ptr<const char[]> key_guard;
|
|
Slice key = AllocateKey(&key_guard);
|
|
for (int64_t i = 0; i < FLAGS_num; ++i) {
|
|
GenerateKeyFromInt(i, FLAGS_num, &key);
|
|
iter->Seek(key);
|
|
assert(iter->Valid() && iter->key() == key);
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
|
|
for (int j = 0; j < FLAGS_seek_nexts && i + 1 < FLAGS_num; ++j) {
|
|
if (!FLAGS_reverse_iterator) {
|
|
iter->Next();
|
|
} else {
|
|
iter->Prev();
|
|
}
|
|
GenerateKeyFromInt(++i, FLAGS_num, &key);
|
|
assert(iter->Valid() && iter->key() == key);
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
}
|
|
|
|
iter->Seek(key);
|
|
assert(iter->Valid() && iter->key() == key);
|
|
thread->stats.FinishedOps(nullptr, db, 1);
|
|
}
|
|
}
|
|
|
|
// This benchmark stress tests Transactions. For a given --duration (or
|
|
// total number of --writes, a Transaction will perform a read-modify-write
|
|
// to increment the value of a key in each of N(--transaction-sets) sets of
|
|
// keys (where each set has --num keys). If --threads is set, this will be
|
|
// done in parallel.
|
|
//
|
|
// To test transactions, use --transaction_db=true. Not setting this
|
|
// parameter
|
|
// will run the same benchmark without transactions.
|
|
//
|
|
// RandomTransactionVerify() will then validate the correctness of the results
|
|
// by checking if the sum of all keys in each set is the same.
|
|
void RandomTransaction(ThreadState* thread) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
ReadOptions read_options(FLAGS_verify_checksum, true);
|
|
std::string value;
|
|
DB* db = db_.db;
|
|
uint64_t transactions_done = 0;
|
|
uint64_t transactions_aborted = 0;
|
|
Status s;
|
|
uint64_t num_prefix_ranges = FLAGS_transaction_sets;
|
|
bool use_txn = FLAGS_transaction_db;
|
|
|
|
if (num_prefix_ranges == 0 || num_prefix_ranges > 9999) {
|
|
fprintf(stderr, "invalid value for transaction_sets\n");
|
|
abort();
|
|
}
|
|
|
|
if (FLAGS_num_multi_db > 1) {
|
|
fprintf(stderr,
|
|
"Cannot run RandomTransaction benchmark with "
|
|
"FLAGS_multi_db > 1.");
|
|
abort();
|
|
}
|
|
|
|
while (!duration.Done(1)) {
|
|
OptimisticTransaction* txn = nullptr;
|
|
WriteBatch* batch = nullptr;
|
|
|
|
if (use_txn) {
|
|
txn = db_.txn_db->BeginTransaction(write_options_);
|
|
assert(txn);
|
|
} else {
|
|
batch = new WriteBatch();
|
|
}
|
|
|
|
// pick a random number to use to increment a key in each set
|
|
uint64_t incr = (thread->rand.Next() % 100) + 1;
|
|
|
|
// For each set, pick a key at random and increment it
|
|
for (uint8_t i = 0; i < num_prefix_ranges; i++) {
|
|
uint64_t int_value;
|
|
char prefix_buf[5];
|
|
|
|
// key format: [SET#][random#]
|
|
std::string rand_key = ToString(thread->rand.Next() % FLAGS_num);
|
|
Slice base_key(rand_key);
|
|
|
|
// Pad prefix appropriately so we can iterate over each set
|
|
snprintf(prefix_buf, sizeof(prefix_buf), "%04d", i + 1);
|
|
std::string full_key = std::string(prefix_buf) + base_key.ToString();
|
|
Slice key(full_key);
|
|
|
|
if (use_txn) {
|
|
s = txn->Get(read_options, key, &value);
|
|
} else {
|
|
s = db->Get(read_options, key, &value);
|
|
}
|
|
|
|
if (s.ok()) {
|
|
int_value = std::stoull(value);
|
|
|
|
if (int_value == 0 || int_value == ULONG_MAX) {
|
|
fprintf(stderr, "Get returned unexpected value: %s\n",
|
|
value.c_str());
|
|
abort();
|
|
}
|
|
} else if (s.IsNotFound()) {
|
|
int_value = 0;
|
|
} else {
|
|
fprintf(stderr, "Get returned an error: %s\n", s.ToString().c_str());
|
|
abort();
|
|
}
|
|
|
|
if (FLAGS_transaction_sleep > 0) {
|
|
FLAGS_env->SleepForMicroseconds(thread->rand.Next() %
|
|
FLAGS_transaction_sleep);
|
|
}
|
|
|
|
std::string sum = ToString(int_value + incr);
|
|
if (use_txn) {
|
|
txn->Put(key, sum);
|
|
} else {
|
|
batch->Put(key, sum);
|
|
}
|
|
}
|
|
|
|
if (use_txn) {
|
|
s = txn->Commit();
|
|
} else {
|
|
s = db->Write(write_options_, batch);
|
|
}
|
|
|
|
if (!s.ok()) {
|
|
// Ideally, we'd want to run this stress test with enough concurrency
|
|
// on a small enough set of keys that we get some failed transactions
|
|
// due to conflicts.
|
|
if (use_txn && s.IsBusy()) {
|
|
transactions_aborted++;
|
|
} else {
|
|
fprintf(stderr, "Unexpected write error: %s\n", s.ToString().c_str());
|
|
abort();
|
|
}
|
|
}
|
|
|
|
if (txn) {
|
|
delete txn;
|
|
}
|
|
if (batch) {
|
|
delete batch;
|
|
}
|
|
|
|
transactions_done++;
|
|
}
|
|
|
|
char msg[100];
|
|
if (use_txn) {
|
|
snprintf(msg, sizeof(msg),
|
|
"( transactions:%" PRIu64 " aborts:%" PRIu64 ")",
|
|
transactions_done, transactions_aborted);
|
|
} else {
|
|
snprintf(msg, sizeof(msg), "( batches:%" PRIu64 " )", transactions_done);
|
|
}
|
|
thread->stats.AddMessage(msg);
|
|
|
|
if (FLAGS_perf_level > 0) {
|
|
thread->stats.AddMessage(perf_context.ToString());
|
|
}
|
|
}
|
|
|
|
// Verifies consistency of data after RandomTransaction() has been run.
|
|
// Since each iteration of RandomTransaction() incremented a key in each set
|
|
// by the same value, the sum of the keys in each set should be the same.
|
|
void RandomTransactionVerify() {
|
|
if (!FLAGS_transaction_db) {
|
|
// transactions not used, nothing to verify.
|
|
return;
|
|
}
|
|
|
|
uint64_t prev_total = 0;
|
|
|
|
// For each set of keys with the same prefix, sum all the values
|
|
for (uint32_t i = 0; i < FLAGS_transaction_sets; i++) {
|
|
char prefix_buf[5];
|
|
snprintf(prefix_buf, sizeof(prefix_buf), "%04u", i + 1);
|
|
uint64_t total = 0;
|
|
|
|
Iterator* iter = db_.db->NewIterator(ReadOptions());
|
|
|
|
for (iter->Seek(Slice(prefix_buf, 4)); iter->Valid(); iter->Next()) {
|
|
Slice key = iter->key();
|
|
|
|
// stop when we reach a different prefix
|
|
if (key.ToString().compare(0, 4, prefix_buf) != 0) {
|
|
break;
|
|
}
|
|
|
|
Slice value = iter->value();
|
|
uint64_t int_value = std::stoull(value.ToString());
|
|
if (int_value == 0 || int_value == ULONG_MAX) {
|
|
fprintf(stderr, "Iter returned unexpected value: %s\n",
|
|
value.ToString().c_str());
|
|
abort();
|
|
}
|
|
|
|
total += int_value;
|
|
}
|
|
delete iter;
|
|
|
|
if (i > 0) {
|
|
if (total != prev_total) {
|
|
fprintf(stderr,
|
|
"RandomTransactionVerify found inconsistent totals. "
|
|
"Set[%" PRIu32 "]: %" PRIu64 ", Set[%" PRIu32 "]: %" PRIu64
|
|
" \n",
|
|
i - 1, prev_total, i, total);
|
|
abort();
|
|
}
|
|
}
|
|
prev_total = total;
|
|
}
|
|
|
|
fprintf(stdout, "RandomTransactionVerify Success! Total:%" PRIu64 "\n",
|
|
prev_total);
|
|
}
|
|
|
|
void Compact(ThreadState* thread) {
|
|
DB* db = SelectDB(thread);
|
|
db->CompactRange(nullptr, nullptr);
|
|
}
|
|
|
|
void PrintStats(const char* key) {
|
|
if (db_.db != nullptr) {
|
|
PrintStats(db_.db, key, false);
|
|
}
|
|
for (const auto& db_with_cfh : multi_dbs_) {
|
|
PrintStats(db_with_cfh.db, key, true);
|
|
}
|
|
}
|
|
|
|
void PrintStats(DB* db, const char* key, bool print_header = false) {
|
|
if (print_header) {
|
|
fprintf(stdout, "\n==== DB: %s ===\n", db->GetName().c_str());
|
|
}
|
|
std::string stats;
|
|
if (!db->GetProperty(key, &stats)) {
|
|
stats = "(failed)";
|
|
}
|
|
fprintf(stdout, "\n%s\n", stats.c_str());
|
|
}
|
|
};
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
rocksdb::port::InstallStackTraceHandler();
|
|
SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
|
|
" [OPTIONS]...");
|
|
ParseCommandLineFlags(&argc, &argv, true);
|
|
|
|
FLAGS_compaction_style_e = (rocksdb::CompactionStyle) FLAGS_compaction_style;
|
|
if (FLAGS_statistics) {
|
|
dbstats = rocksdb::CreateDBStatistics();
|
|
}
|
|
|
|
std::vector<std::string> fanout = rocksdb::StringSplit(
|
|
FLAGS_max_bytes_for_level_multiplier_additional, ',');
|
|
for (unsigned int j= 0; j < fanout.size(); j++) {
|
|
FLAGS_max_bytes_for_level_multiplier_additional_v.push_back(
|
|
#ifndef CYGWIN
|
|
std::stoi(fanout[j]));
|
|
#else
|
|
stoi(fanout[j]));
|
|
#endif
|
|
}
|
|
|
|
FLAGS_compression_type_e =
|
|
StringToCompressionType(FLAGS_compression_type.c_str());
|
|
|
|
if (!FLAGS_hdfs.empty()) {
|
|
FLAGS_env = new rocksdb::HdfsEnv(FLAGS_hdfs);
|
|
}
|
|
|
|
if (!strcasecmp(FLAGS_compaction_fadvice.c_str(), "NONE"))
|
|
FLAGS_compaction_fadvice_e = rocksdb::Options::NONE;
|
|
else if (!strcasecmp(FLAGS_compaction_fadvice.c_str(), "NORMAL"))
|
|
FLAGS_compaction_fadvice_e = rocksdb::Options::NORMAL;
|
|
else if (!strcasecmp(FLAGS_compaction_fadvice.c_str(), "SEQUENTIAL"))
|
|
FLAGS_compaction_fadvice_e = rocksdb::Options::SEQUENTIAL;
|
|
else if (!strcasecmp(FLAGS_compaction_fadvice.c_str(), "WILLNEED"))
|
|
FLAGS_compaction_fadvice_e = rocksdb::Options::WILLNEED;
|
|
else {
|
|
fprintf(stdout, "Unknown compaction fadvice:%s\n",
|
|
FLAGS_compaction_fadvice.c_str());
|
|
}
|
|
|
|
FLAGS_rep_factory = StringToRepFactory(FLAGS_memtablerep.c_str());
|
|
|
|
// The number of background threads should be at least as much the
|
|
// max number of concurrent compactions.
|
|
FLAGS_env->SetBackgroundThreads(FLAGS_max_background_compactions);
|
|
FLAGS_env->SetBackgroundThreads(FLAGS_max_background_flushes,
|
|
rocksdb::Env::Priority::HIGH);
|
|
|
|
// Choose a location for the test database if none given with --db=<path>
|
|
if (FLAGS_db.empty()) {
|
|
std::string default_db_path;
|
|
rocksdb::Env::Default()->GetTestDirectory(&default_db_path);
|
|
default_db_path += "/dbbench";
|
|
FLAGS_db = default_db_path;
|
|
}
|
|
|
|
if (FLAGS_stats_interval_seconds > 0) {
|
|
// When both are set then FLAGS_stats_interval determines the frequency
|
|
// at which the timer is checked for FLAGS_stats_interval_seconds
|
|
FLAGS_stats_interval = 1000;
|
|
}
|
|
|
|
rocksdb::Benchmark benchmark;
|
|
benchmark.Run();
|
|
return 0;
|
|
}
|
|
|
|
#endif // GFLAGS
|