1560bb913e
Summary:
Added an option for readrandom benchmark to run with tailing iterator instead of Get. Benefit of tailing iterator is that it doesn't require locking DB mutex on access.
I also have some results when running on my machine. The results highly depend on number of cache shards. With our current benchmark setting of 4 table cache shards and 6 block cache shards, I don't see much improvements of using tailing iterator. In that case, we're probably seeing cache mutex contention.
Here are the results for different number of shards
cache shards tailing iterator get
6 1.38M 1.16M
10 1.58M 1.15M
As soon as we get rid of cache mutex contention, we're seeing big improvements in using tailing iterator vs. ordinary get.
Test Plan: ran regression test
Reviewers: dhruba, haobo, ljin, kailiu, sding
Reviewed By: haobo
CC: tnovak
Differential Revision: https://reviews.facebook.net/D15867
2626 lines
88 KiB
C++
2626 lines
88 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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#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 "db/db_impl.h"
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#include "db/version_set.h"
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#include "rocksdb/statistics.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/slice_transform.h"
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#include "rocksdb/statistics.h"
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#include "rocksdb/perf_context.h"
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#include "port/port.h"
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#include "util/bit_set.h"
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#include "util/crc32c.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/stack_trace.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 "hdfs/env_hdfs.h"
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#include "utilities/merge_operators.h"
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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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"readrandom,"
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"readseq,"
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"readreverse,"
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"compact,"
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"readrandom,"
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"readseq,"
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"readtocache,"
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"readreverse,"
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"readwhilewriting,"
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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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"snappycomp,"
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"snappyuncomp,"
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"acquireload,"
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"fillfromstdin,",
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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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"\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\n"
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"\tcrc32c -- repeated crc32c of 4K of data\n"
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"\tacquireload -- load N*1000 times\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_int64(reads, -1, "Number of read operations to do. "
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"If negative, do FLAGS_num reads.");
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DEFINE_int64(read_range, 1, "When ==1 reads use ::Get, when >1 reads use"
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" an iterator");
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DEFINE_bool(use_prefix_blooms, false, "Whether to place prefixes in blooms");
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DEFINE_bool(use_prefix_api, false, "Whether to set ReadOptions.prefix for"
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" prefixscanrandom. If true, use_prefix_blooms must also be true.");
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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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// the maximum size of key in bytes
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static const int kMaxKeySize = 128;
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static bool ValidateKeySize(const char* flagname, int32_t value) {
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if (value > kMaxKeySize) {
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fprintf(stderr, "Invalid value for --%s: %d, must be < %d\n",
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flagname, value, kMaxKeySize);
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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(key_size, 16, "size of each key");
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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_bool(histogram, false, "Print histogram of operation timings");
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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_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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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, rocksdb::Options().block_size,
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"Number of bytes in a block.");
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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_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_int32(cache_remove_scan_count_limit, 32, "");
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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 per second."
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" No limit when <= 0. Only for the readwhilewriting test.");
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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_bool(use_snapshot, false, "If true, create a snapshot per query when"
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" randomread benchmark is used");
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DEFINE_bool(get_approx, false, "If true, call GetApproximateSizes per query"
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" when read_range is > 1 and randomread benchmark is used");
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DEFINE_int32(num_levels, 7, "The total number of levels");
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DEFINE_int32(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_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, 12, "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, 8, "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, 4, "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_int32(disable_seek_compaction, false, "Option to disable compaction"
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" triggered by read.");
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DEFINE_uint64(delete_obsolete_files_period_micros, 0, "Option to delete "
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"obsolete files periodically. 0 means that obsolete files are"
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" deleted after every compaction run.");
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enum rocksdb::CompressionType StringToCompressionType(const char* ctype) {
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assert(ctype);
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if (!strcasecmp(ctype, "none"))
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return rocksdb::kNoCompression;
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else if (!strcasecmp(ctype, "snappy"))
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return rocksdb::kSnappyCompression;
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else if (!strcasecmp(ctype, "zlib"))
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return rocksdb::kZlibCompression;
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else if (!strcasecmp(ctype, "bzip2"))
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return rocksdb::kBZip2Compression;
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fprintf(stdout, "Cannot parse compression type '%s'\n", ctype);
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return rocksdb::kSnappyCompression; //default value
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}
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DEFINE_string(compression_type, "snappy",
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"Algorithm to use to compress the database");
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static enum rocksdb::CompressionType FLAGS_compression_type_e =
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rocksdb::kSnappyCompression;
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DEFINE_int32(compression_level, -1,
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"Compression level. For zlib this should be -1 for the "
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"default level, or between 0 and 9.");
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static bool ValidateCompressionLevel(const char* flagname, int32_t value) {
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if (value < -1 || value > 9) {
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fprintf(stderr, "Invalid value for --%s: %d, must be between -1 and 9\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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static const bool FLAGS_compression_level_dummy __attribute__((unused)) =
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google::RegisterFlagValidator(&FLAGS_compression_level,
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&ValidateCompressionLevel);
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DEFINE_int32(min_level_to_compress, -1, "If non-negative, compression starts"
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" from this level. Levels with number < min_level_to_compress are"
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" not compressed. Otherwise, apply compression_type to "
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"all levels.");
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static bool ValidateTableCacheNumshardbits(const char* flagname,
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int32_t value) {
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if (0 >= value || value > 20) {
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fprintf(stderr, "Invalid value for --%s: %d, must be 0 < val <= 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(table_cache_numshardbits, 4, "");
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DEFINE_string(hdfs, "", "Name of hdfs environment");
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// posix or hdfs environment
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static rocksdb::Env* FLAGS_env = rocksdb::Env::Default();
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DEFINE_int64(stats_interval, 0, "Stats are reported every N operations when "
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"this is greater than zero. When 0 the interval grows over time.");
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DEFINE_int32(stats_per_interval, 0, "Reports additional stats per interval when"
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" this is greater than 0.");
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DEFINE_int32(perf_level, 0, "Level of perf collection");
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static bool ValidateRateLimit(const char* flagname, double value) {
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static constexpr double EPSILON = 1e-10;
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if ( value < -EPSILON ) {
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fprintf(stderr, "Invalid value for --%s: %12.6f, must be >= 0.0\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_double(soft_rate_limit, 0.0, "");
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DEFINE_double(hard_rate_limit, 0.0, "When not equal to 0 this make threads "
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"sleep at each stats reporting interval until the compaction"
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" score for all levels is less than or equal to this value.");
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DEFINE_int32(rate_limit_delay_max_milliseconds, 1000,
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"When hard_rate_limit is set then this is the max time a put will"
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" be stalled.");
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DEFINE_int32(max_grandparent_overlap_factor, 10, "Control maximum bytes of "
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"overlaps in grandparent (i.e., level+2) before we stop building a"
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" single file in a level->level+1 compaction.");
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DEFINE_bool(readonly, false, "Run read only benchmarks.");
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DEFINE_bool(disable_auto_compactions, false, "Do not auto trigger compactions");
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DEFINE_int32(source_compaction_factor, 1, "Cap the size of data in level-K for"
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" a compaction run that compacts Level-K with Level-(K+1) (for"
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" K >= 1)");
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DEFINE_uint64(wal_ttl_seconds, 0, "Set the TTL for the WAL Files in seconds.");
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DEFINE_uint64(wal_size_limit_MB, 0, "Set the size limit for the WAL Files"
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" in MB.");
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DEFINE_bool(bufferedio, rocksdb::EnvOptions().use_os_buffer,
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"Allow buffered io using OS buffers");
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DEFINE_bool(mmap_read, rocksdb::EnvOptions().use_mmap_reads,
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"Allow reads to occur via mmap-ing files");
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DEFINE_bool(mmap_write, rocksdb::EnvOptions().use_mmap_writes,
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"Allow writes to occur via mmap-ing files");
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DEFINE_bool(advise_random_on_open, rocksdb::Options().advise_random_on_open,
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"Advise random access on table file open");
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|
|
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(use_multiget, false,
|
|
"Use multiget to access a series of keys instead of get");
|
|
|
|
DEFINE_bool(use_tailing_iterator, false,
|
|
"Use tailing iterator to access a series of keys instead of get");
|
|
|
|
DEFINE_int64(keys_per_multiget, 90, "If use_multiget is true, determines number"
|
|
" of keys to group per call Arbitrary default is good because it"
|
|
" agrees with readwritepercent");
|
|
|
|
// TODO: Apply this flag to generic Get calls too. Currently only with Multiget
|
|
DEFINE_bool(warn_missing_keys, true, "Print a message to user when a key is"
|
|
" missing in a Get/MultiGet call");
|
|
|
|
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 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_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");
|
|
|
|
enum RepFactory {
|
|
kSkipList,
|
|
kPrefixHash,
|
|
kVectorRep
|
|
};
|
|
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;
|
|
|
|
fprintf(stdout, "Cannot parse memreptable %s\n", ctype);
|
|
return kSkipList;
|
|
}
|
|
static enum RepFactory FLAGS_rep_factory;
|
|
DEFINE_string(memtablerep, "skip_list", "");
|
|
|
|
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");
|
|
|
|
static const bool FLAGS_soft_rate_limit_dummy __attribute__((unused)) =
|
|
google::RegisterFlagValidator(&FLAGS_soft_rate_limit,
|
|
&ValidateRateLimit);
|
|
|
|
static const bool FLAGS_hard_rate_limit_dummy __attribute__((unused)) =
|
|
google::RegisterFlagValidator(&FLAGS_hard_rate_limit, &ValidateRateLimit);
|
|
|
|
static const bool FLAGS_prefix_size_dummy __attribute__((unused)) =
|
|
google::RegisterFlagValidator(&FLAGS_prefix_size, &ValidatePrefixSize);
|
|
|
|
static const bool FLAGS_key_size_dummy __attribute__((unused)) =
|
|
google::RegisterFlagValidator(&FLAGS_key_size, &ValidateKeySize);
|
|
|
|
static const bool FLAGS_cache_numshardbits_dummy __attribute__((unused)) =
|
|
google::RegisterFlagValidator(&FLAGS_cache_numshardbits,
|
|
&ValidateCacheNumshardbits);
|
|
|
|
static const bool FLAGS_readwritepercent_dummy __attribute__((unused)) =
|
|
google::RegisterFlagValidator(&FLAGS_readwritepercent,
|
|
&ValidateInt32Percent);
|
|
|
|
static const bool FLAGS_deletepercent_dummy __attribute__((unused)) =
|
|
google::RegisterFlagValidator(&FLAGS_deletepercent,
|
|
&ValidateInt32Percent);
|
|
static const bool
|
|
FLAGS_table_cache_numshardbits_dummy __attribute__((unused)) =
|
|
google::RegisterFlagValidator(&FLAGS_table_cache_numshardbits,
|
|
&ValidateTableCacheNumshardbits);
|
|
|
|
namespace rocksdb {
|
|
|
|
// 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) {
|
|
if (pos_ + len > data_.size()) {
|
|
pos_ = 0;
|
|
assert(len < data_.size());
|
|
}
|
|
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());
|
|
}
|
|
|
|
class Stats {
|
|
private:
|
|
int id_;
|
|
double start_;
|
|
double finish_;
|
|
double seconds_;
|
|
long long done_;
|
|
long long last_report_done_;
|
|
long long next_report_;
|
|
int64_t bytes_;
|
|
double last_op_finish_;
|
|
double last_report_finish_;
|
|
HistogramImpl hist_;
|
|
std::string message_;
|
|
bool exclude_from_merge_;
|
|
|
|
public:
|
|
Stats() { Start(-1); }
|
|
|
|
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 FinishedSingleOp(DB* db) {
|
|
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_++;
|
|
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 %lld ops%30s\r", done_, "");
|
|
fflush(stderr);
|
|
} else {
|
|
double now = FLAGS_env->NowMicros();
|
|
fprintf(stderr,
|
|
"%s ... thread %d: (%lld,%lld) 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_) /
|
|
((now - last_report_finish_) / 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 && db->GetProperty("rocksdb.stats", &stats))
|
|
fprintf(stderr, "%s\n", stats.c_str());
|
|
}
|
|
|
|
fflush(stderr);
|
|
next_report_ += FLAGS_stats_interval;
|
|
last_report_finish_ = now;
|
|
last_report_done_ = done_;
|
|
}
|
|
}
|
|
}
|
|
|
|
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 FinishedSingleOp().
|
|
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());
|
|
}
|
|
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, long long max_ops) {
|
|
max_seconds_ = max_seconds;
|
|
max_ops_= max_ops;
|
|
ops_ = 0;
|
|
start_at_ = FLAGS_env->NowMicros();
|
|
}
|
|
|
|
bool Done(int 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_;
|
|
long long max_ops_;
|
|
long long ops_;
|
|
double start_at_;
|
|
};
|
|
|
|
class Benchmark {
|
|
private:
|
|
shared_ptr<Cache> cache_;
|
|
shared_ptr<Cache> compressed_cache_;
|
|
const FilterPolicy* filter_policy_;
|
|
const SliceTransform* prefix_extractor_;
|
|
DB* db_;
|
|
long long num_;
|
|
int value_size_;
|
|
int key_size_;
|
|
int entries_per_batch_;
|
|
WriteOptions write_options_;
|
|
long long reads_;
|
|
long long writes_;
|
|
long long readwrites_;
|
|
long long merge_keys_;
|
|
int heap_counter_;
|
|
char keyFormat_[100]; // will contain the format of key. e.g "%016d"
|
|
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: %lld\n", num_);
|
|
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);
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
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 = port::Snappy_Compress(Options().compression_opts, text,
|
|
strlen(text), &compressed);
|
|
name = "Snappy";
|
|
break;
|
|
case kZlibCompression:
|
|
result = port::Zlib_Compress(Options().compression_opts, text,
|
|
strlen(text), &compressed);
|
|
name = "Zlib";
|
|
break;
|
|
case kBZip2Compression:
|
|
result = port::BZip2_Compress(Options().compression_opts, text,
|
|
strlen(text), &compressed);
|
|
name = "BZip2";
|
|
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 = 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,
|
|
FLAGS_cache_remove_scan_count_limit) :
|
|
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)
|
|
: nullptr),
|
|
prefix_extractor_(NewFixedPrefixTransform(FLAGS_key_size-1)),
|
|
db_(nullptr),
|
|
num_(FLAGS_num),
|
|
value_size_(FLAGS_value_size),
|
|
key_size_(FLAGS_key_size),
|
|
entries_per_batch_(1),
|
|
reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
|
|
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),
|
|
heap_counter_(0) {
|
|
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) {
|
|
DestroyDB(FLAGS_db, Options());
|
|
}
|
|
}
|
|
|
|
~Benchmark() {
|
|
delete db_;
|
|
delete filter_policy_;
|
|
delete prefix_extractor_;
|
|
}
|
|
|
|
//this function will construct string format for key. e.g "%016lld"
|
|
void ConstructStrFormatForKey(char* str, int keySize) {
|
|
str[0] = '%';
|
|
str[1] = '0';
|
|
sprintf(str+2, "%dlld%s", keySize, "%s");
|
|
}
|
|
|
|
unique_ptr<char []> GenerateKeyFromInt(long long v, const char* suffix = "") {
|
|
unique_ptr<char []> keyInStr(new char[kMaxKeySize + 1]);
|
|
snprintf(keyInStr.get(), kMaxKeySize + 1, keyFormat_, v, suffix);
|
|
return keyInStr;
|
|
}
|
|
|
|
void Run() {
|
|
PrintHeader();
|
|
Open();
|
|
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;
|
|
ConstructStrFormatForKey(keyFormat_, key_size_);
|
|
entries_per_batch_ = 1;
|
|
write_options_ = WriteOptions();
|
|
if (FLAGS_sync) {
|
|
write_options_.sync = true;
|
|
}
|
|
write_options_.disableWAL = FLAGS_disable_wal;
|
|
|
|
void (Benchmark::*method)(ThreadState*) = 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("fillfromstdin")) {
|
|
fresh_db = true;
|
|
method = &Benchmark::WriteFromStdin;
|
|
} else if (name == Slice("filluniquerandom")) {
|
|
fresh_db = true;
|
|
if (num_threads > 1) {
|
|
fprintf(stderr, "filluniquerandom multithreaded not supported"
|
|
" set --threads=1");
|
|
exit(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("readmissing")) {
|
|
method = &Benchmark::ReadMissing;
|
|
} else if (name == Slice("newiterator")) {
|
|
method = &Benchmark::IteratorCreation;
|
|
} else if (name == Slice("seekrandom")) {
|
|
method = &Benchmark::SeekRandom;
|
|
} else if (name == Slice("readhot")) {
|
|
method = &Benchmark::ReadHot;
|
|
} else if (name == Slice("readrandomsmall")) {
|
|
reads_ /= 1000;
|
|
method = &Benchmark::ReadRandom;
|
|
} else if (name == Slice("prefixscanrandom")) {
|
|
method = &Benchmark::PrefixScanRandom;
|
|
} 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("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());
|
|
method = nullptr;
|
|
} else {
|
|
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());
|
|
method = nullptr;
|
|
} else {
|
|
method = &Benchmark::MergeRandom;
|
|
}
|
|
} else if (name == Slice("randomwithverify")) {
|
|
method = &Benchmark::RandomWithVerify;
|
|
} else if (name == Slice("compact")) {
|
|
method = &Benchmark::Compact;
|
|
} else if (name == Slice("crc32c")) {
|
|
method = &Benchmark::Crc32c;
|
|
} else if (name == Slice("acquireload")) {
|
|
method = &Benchmark::AcquireLoad;
|
|
} else if (name == Slice("snappycomp")) {
|
|
method = &Benchmark::SnappyCompress;
|
|
} else if (name == Slice("snappyuncomp")) {
|
|
method = &Benchmark::SnappyUncompress;
|
|
} else if (name == Slice("heapprofile")) {
|
|
HeapProfile();
|
|
} 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());
|
|
}
|
|
}
|
|
|
|
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 {
|
|
delete db_;
|
|
db_ = nullptr;
|
|
DestroyDB(FLAGS_db, Options());
|
|
Open();
|
|
}
|
|
}
|
|
|
|
if (method != nullptr) {
|
|
fprintf(stdout, "DB path: [%s]\n", FLAGS_db.c_str());
|
|
RunBenchmark(num_threads, name, method);
|
|
}
|
|
}
|
|
if (FLAGS_statistics) {
|
|
fprintf(stdout, "STATISTICS:\n%s\n", dbstats->ToString().c_str());
|
|
}
|
|
}
|
|
|
|
private:
|
|
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;
|
|
|
|
ThreadArg* arg = new ThreadArg[n];
|
|
for (int i = 0; i < n; i++) {
|
|
arg[i].bm = this;
|
|
arg[i].method = method;
|
|
arg[i].shared = &shared;
|
|
arg[i].thread = new ThreadState(i);
|
|
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.FinishedSingleOp(nullptr);
|
|
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 AcquireLoad(ThreadState* thread) {
|
|
int dummy;
|
|
port::AtomicPointer 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.Acquire_Load();
|
|
}
|
|
count++;
|
|
thread->stats.FinishedSingleOp(nullptr);
|
|
}
|
|
if (ptr == nullptr) exit(1); // Disable unused variable warning.
|
|
}
|
|
|
|
void SnappyCompress(ThreadState* thread) {
|
|
RandomGenerator gen;
|
|
Slice input = gen.Generate(Options().block_size);
|
|
int64_t bytes = 0;
|
|
int64_t produced = 0;
|
|
bool ok = true;
|
|
std::string compressed;
|
|
while (ok && bytes < 1024 * 1048576) { // Compress 1G
|
|
ok = port::Snappy_Compress(Options().compression_opts, input.data(),
|
|
input.size(), &compressed);
|
|
produced += compressed.size();
|
|
bytes += input.size();
|
|
thread->stats.FinishedSingleOp(nullptr);
|
|
}
|
|
|
|
if (!ok) {
|
|
thread->stats.AddMessage("(snappy failure)");
|
|
} else {
|
|
char buf[100];
|
|
snprintf(buf, sizeof(buf), "(output: %.1f%%)",
|
|
(produced * 100.0) / bytes);
|
|
thread->stats.AddMessage(buf);
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
}
|
|
|
|
void SnappyUncompress(ThreadState* thread) {
|
|
RandomGenerator gen;
|
|
Slice input = gen.Generate(Options().block_size);
|
|
std::string compressed;
|
|
bool ok = port::Snappy_Compress(Options().compression_opts, input.data(),
|
|
input.size(), &compressed);
|
|
int64_t bytes = 0;
|
|
char* uncompressed = new char[input.size()];
|
|
while (ok && bytes < 1024 * 1048576) { // Compress 1G
|
|
ok = port::Snappy_Uncompress(compressed.data(), compressed.size(),
|
|
uncompressed);
|
|
bytes += input.size();
|
|
thread->stats.FinishedSingleOp(nullptr);
|
|
}
|
|
delete[] uncompressed;
|
|
|
|
if (!ok) {
|
|
thread->stats.AddMessage("(snappy failure)");
|
|
} else {
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
}
|
|
|
|
void Open() {
|
|
assert(db_ == nullptr);
|
|
Options options;
|
|
options.create_if_missing = !FLAGS_use_existing_db;
|
|
options.block_cache = cache_;
|
|
options.block_cache_compressed = compressed_cache_;
|
|
if (cache_ == nullptr) {
|
|
options.no_block_cache = true;
|
|
}
|
|
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_background_compactions = FLAGS_max_background_compactions;
|
|
options.compaction_style = FLAGS_compaction_style_e;
|
|
options.block_size = FLAGS_block_size;
|
|
options.filter_policy = filter_policy_;
|
|
options.prefix_extractor = FLAGS_use_prefix_blooms ? prefix_extractor_
|
|
: nullptr;
|
|
options.max_open_files = FLAGS_open_files;
|
|
options.statistics = dbstats;
|
|
options.env = FLAGS_env;
|
|
options.disableDataSync = FLAGS_disable_data_sync;
|
|
options.use_fsync = FLAGS_use_fsync;
|
|
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.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)) {
|
|
fprintf(stderr,
|
|
"prefix_size should be non-zero iff memtablerep == prefix_hash\n");
|
|
exit(1);
|
|
}
|
|
switch (FLAGS_rep_factory) {
|
|
case kPrefixHash:
|
|
options.memtable_factory.reset(NewHashSkipListRepFactory(
|
|
NewFixedPrefixTransform(FLAGS_prefix_size)));
|
|
break;
|
|
case kSkipList:
|
|
// no need to do anything
|
|
break;
|
|
case kVectorRep:
|
|
options.memtable_factory.reset(
|
|
new VectorRepFactory
|
|
);
|
|
break;
|
|
}
|
|
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;
|
|
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.disable_seek_compaction = FLAGS_disable_seek_compaction;
|
|
options.delete_obsolete_files_period_micros =
|
|
FLAGS_delete_obsolete_files_period_micros;
|
|
options.soft_rate_limit = FLAGS_soft_rate_limit;
|
|
options.hard_rate_limit = FLAGS_hard_rate_limit;
|
|
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;
|
|
|
|
// 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;
|
|
}
|
|
|
|
Status s;
|
|
if(FLAGS_readonly) {
|
|
s = DB::OpenForReadOnly(options, FLAGS_db, &db_);
|
|
} else {
|
|
s = DB::Open(options, FLAGS_db, &db_);
|
|
}
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "open error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
if (FLAGS_min_level_to_compress >= 0) {
|
|
options.compression_per_level.clear();
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
void writeOrFail(WriteBatch& batch) {
|
|
Status s = db_->Write(write_options_, &batch);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void WriteFromStdin(ThreadState* thread) {
|
|
size_t count = 0;
|
|
WriteBatch batch;
|
|
const size_t bufferLen = 32 << 20;
|
|
unique_ptr<char[]> line = unique_ptr<char[]>(new char[bufferLen]);
|
|
char* linep = line.get();
|
|
const int batchSize = 100 << 10;
|
|
const char columnSeparator = '\t';
|
|
const char lineSeparator = '\n';
|
|
|
|
while (fgets(linep, bufferLen, stdin) != nullptr) {
|
|
++count;
|
|
char* tab = std::find(linep, linep + bufferLen, columnSeparator);
|
|
if (tab == linep + bufferLen) {
|
|
fprintf(stderr, "[Error] No Key delimiter TAB at line %zu\n", count);
|
|
continue;
|
|
}
|
|
Slice key(linep, tab - linep);
|
|
tab++;
|
|
char* endLine = std::find(tab, linep + bufferLen, lineSeparator);
|
|
if (endLine == linep + bufferLen) {
|
|
fprintf(stderr, "[Error] No ENTER at end of line # %zu\n", count);
|
|
continue;
|
|
}
|
|
Slice value(tab, endLine - tab);
|
|
thread->stats.FinishedSingleOp(db_);
|
|
thread->stats.AddBytes(endLine - linep - 1);
|
|
|
|
if (batch.Count() < batchSize) {
|
|
batch.Put(key, value);
|
|
continue;
|
|
}
|
|
writeOrFail(batch);
|
|
batch.Clear();
|
|
}
|
|
if (batch.Count() > 0) {
|
|
writeOrFail(batch);
|
|
}
|
|
}
|
|
|
|
void DoWrite(ThreadState* thread, WriteMode write_mode) {
|
|
const int test_duration = write_mode == RANDOM ? FLAGS_duration : 0;
|
|
const int num_ops = writes_ == 0 ? num_ : writes_ ;
|
|
Duration duration(test_duration, num_ops);
|
|
unique_ptr<BitSet> bit_set;
|
|
|
|
if (write_mode == UNIQUE_RANDOM) {
|
|
bit_set.reset(new BitSet(num_ops));
|
|
}
|
|
|
|
if (num_ != FLAGS_num) {
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%lld ops)", num_);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
RandomGenerator gen;
|
|
WriteBatch batch;
|
|
Status s;
|
|
int64_t bytes = 0;
|
|
int i = 0;
|
|
while (!duration.Done(entries_per_batch_)) {
|
|
batch.Clear();
|
|
for (int j = 0; j < entries_per_batch_; j++) {
|
|
long long k = 0;
|
|
switch(write_mode) {
|
|
case SEQUENTIAL:
|
|
k = i +j;
|
|
break;
|
|
case RANDOM:
|
|
k = thread->rand.Next() % FLAGS_num;
|
|
break;
|
|
case UNIQUE_RANDOM:
|
|
{
|
|
const long long t = thread->rand.Next() % FLAGS_num;
|
|
if (!bit_set->test(t)) {
|
|
// best case
|
|
k = t;
|
|
} else {
|
|
bool found = false;
|
|
// look forward
|
|
for (size_t i = t + 1; i < bit_set->size(); ++i) {
|
|
if (!bit_set->test(i)) {
|
|
found = true;
|
|
k = i;
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
for (size_t i = t; i-- > 0;) {
|
|
if (!bit_set->test(i)) {
|
|
found = true;
|
|
k = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
bit_set->set(k);
|
|
break;
|
|
}
|
|
};
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
batch.Put(key.get(), gen.Generate(value_size_));
|
|
bytes += value_size_ + strlen(key.get());
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
s = db_->Write(write_options_, &batch);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
i += entries_per_batch_;
|
|
}
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
|
|
void ReadSequential(ThreadState* thread) {
|
|
Iterator* iter = db_->NewIterator(ReadOptions(FLAGS_verify_checksum, true));
|
|
long long i = 0;
|
|
int64_t bytes = 0;
|
|
for (iter->SeekToFirst(); i < reads_ && iter->Valid(); iter->Next()) {
|
|
bytes += iter->key().size() + iter->value().size();
|
|
thread->stats.FinishedSingleOp(db_);
|
|
++i;
|
|
}
|
|
delete iter;
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
|
|
void ReadReverse(ThreadState* thread) {
|
|
Iterator* iter = db_->NewIterator(ReadOptions(FLAGS_verify_checksum, true));
|
|
long long i = 0;
|
|
int64_t bytes = 0;
|
|
for (iter->SeekToLast(); i < reads_ && iter->Valid(); iter->Prev()) {
|
|
bytes += iter->key().size() + iter->value().size();
|
|
thread->stats.FinishedSingleOp(db_);
|
|
++i;
|
|
}
|
|
delete iter;
|
|
thread->stats.AddBytes(bytes);
|
|
}
|
|
|
|
// Calls MultiGet over a list of keys from a random distribution.
|
|
// Returns the total number of keys found.
|
|
long MultiGetRandom(ReadOptions& options, int num_keys,
|
|
Random64& rand, long long range, const char* suffix) {
|
|
assert(num_keys > 0);
|
|
std::vector<Slice> keys(num_keys);
|
|
std::vector<std::string> values(num_keys);
|
|
std::vector<unique_ptr<char []> > gen_keys(num_keys);
|
|
|
|
int i;
|
|
long long k;
|
|
|
|
// Fill the keys vector
|
|
for(i=0; i<num_keys; ++i) {
|
|
k = rand.Next() % range;
|
|
gen_keys[i] = GenerateKeyFromInt(k,suffix);
|
|
keys[i] = gen_keys[i].get();
|
|
}
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
options.snapshot = db_->GetSnapshot();
|
|
}
|
|
|
|
// Apply the operation
|
|
std::vector<Status> statuses = db_->MultiGet(options, keys, &values);
|
|
assert((long)statuses.size() == num_keys);
|
|
assert((long)keys.size() == num_keys); // Should always be the case.
|
|
assert((long)values.size() == num_keys);
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
db_->ReleaseSnapshot(options.snapshot);
|
|
options.snapshot = nullptr;
|
|
}
|
|
|
|
// Count number found
|
|
long found = 0;
|
|
for(i=0; i<num_keys; ++i) {
|
|
if (statuses[i].ok()){
|
|
++found;
|
|
} else if (FLAGS_warn_missing_keys == true) {
|
|
// Key not found, or error.
|
|
fprintf(stderr, "get error: %s\n", statuses[i].ToString().c_str());
|
|
}
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
void ReadRandom(ThreadState* thread) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
Duration duration(FLAGS_duration, reads_);
|
|
|
|
long long found = 0;
|
|
|
|
if (FLAGS_use_multiget) { // MultiGet
|
|
const long& kpg = FLAGS_keys_per_multiget; // keys per multiget group
|
|
long keys_left = reads_;
|
|
|
|
// Recalculate number of keys per group, and call MultiGet until done
|
|
long num_keys;
|
|
while(num_keys = std::min(keys_left, kpg), !duration.Done(num_keys)) {
|
|
found += MultiGetRandom(options, num_keys, thread->rand, FLAGS_num, "");
|
|
thread->stats.FinishedSingleOp(db_);
|
|
keys_left -= num_keys;
|
|
}
|
|
} else if (FLAGS_use_tailing_iterator) { // use tailing iterator for gets
|
|
options.tailing = true;
|
|
Iterator* iter = db_->NewIterator(options);
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char[]> key = GenerateKeyFromInt(k);
|
|
|
|
iter->Seek(key.get());
|
|
if (iter->Valid() && iter->key().compare(Slice(key.get())) == 0) {
|
|
++found;
|
|
}
|
|
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
delete iter;
|
|
} else { // Regular case. Do one "get" at a time Get
|
|
Iterator* iter = db_->NewIterator(options);
|
|
std::string value;
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
if (FLAGS_use_snapshot) {
|
|
options.snapshot = db_->GetSnapshot();
|
|
}
|
|
|
|
if (FLAGS_read_range < 2) {
|
|
if (db_->Get(options, key.get(), &value).ok()) {
|
|
found++;
|
|
}
|
|
} else {
|
|
Slice skey(key.get());
|
|
int count = 1;
|
|
|
|
if (FLAGS_get_approx) {
|
|
unique_ptr<char []> key2 =
|
|
GenerateKeyFromInt(k + (int) FLAGS_read_range);
|
|
Slice skey2(key2.get());
|
|
Range range(skey, skey2);
|
|
uint64_t sizes;
|
|
db_->GetApproximateSizes(&range, 1, &sizes);
|
|
}
|
|
|
|
for (iter->Seek(skey);
|
|
iter->Valid() && count <= FLAGS_read_range;
|
|
++count, iter->Next()) {
|
|
found++;
|
|
}
|
|
}
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
db_->ReleaseSnapshot(options.snapshot);
|
|
options.snapshot = nullptr;
|
|
}
|
|
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
|
|
delete iter;
|
|
}
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%lld of %lld found)", found, reads_);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
void PrefixScanRandom(ThreadState* thread) {
|
|
if (FLAGS_use_prefix_api) {
|
|
assert(FLAGS_use_prefix_blooms);
|
|
assert(FLAGS_bloom_bits >= 1);
|
|
}
|
|
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
Duration duration(FLAGS_duration, reads_);
|
|
|
|
long long found = 0;
|
|
|
|
while (!duration.Done(1)) {
|
|
std::string value;
|
|
const int k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
Slice skey(key.get());
|
|
Slice prefix = prefix_extractor_->Transform(skey);
|
|
options.prefix = FLAGS_use_prefix_api ? &prefix : nullptr;
|
|
|
|
Iterator* iter = db_->NewIterator(options);
|
|
for (iter->Seek(skey);
|
|
iter->Valid() && iter->key().starts_with(prefix);
|
|
iter->Next()) {
|
|
found++;
|
|
}
|
|
delete iter;
|
|
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%lld of %lld found)", found, reads_);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
void ReadMissing(ThreadState* thread) {
|
|
FLAGS_warn_missing_keys = false; // Never warn about missing keys
|
|
|
|
Duration duration(FLAGS_duration, reads_);
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
|
|
if (FLAGS_use_multiget) {
|
|
const long& kpg = FLAGS_keys_per_multiget; // keys per multiget group
|
|
long keys_left = reads_;
|
|
|
|
// Recalculate number of keys per group, and call MultiGet until done
|
|
long num_keys;
|
|
long found;
|
|
while(num_keys = std::min(keys_left, kpg), !duration.Done(num_keys)) {
|
|
found = MultiGetRandom(options, num_keys, thread->rand, FLAGS_num, ".");
|
|
|
|
// We should not find any key since the key we try to get has a
|
|
// different suffix
|
|
if (found) {
|
|
assert(false);
|
|
}
|
|
|
|
thread->stats.FinishedSingleOp(db_);
|
|
keys_left -= num_keys;
|
|
}
|
|
} else { // Regular case (not MultiGet)
|
|
std::string value;
|
|
Status s;
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k, ".");
|
|
s = db_->Get(options, key.get(), &value);
|
|
assert(!s.ok() && s.IsNotFound());
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ReadHot(ThreadState* thread) {
|
|
Duration duration(FLAGS_duration, reads_);
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
const long long range = (FLAGS_num + 99) / 100;
|
|
long long found = 0;
|
|
|
|
if (FLAGS_use_multiget) {
|
|
const long long kpg = FLAGS_keys_per_multiget; // keys per multiget group
|
|
long long keys_left = reads_;
|
|
|
|
// Recalculate number of keys per group, and call MultiGet until done
|
|
long num_keys;
|
|
while(num_keys = std::min(keys_left, kpg), !duration.Done(num_keys)) {
|
|
found += MultiGetRandom(options, num_keys, thread->rand, range, "");
|
|
thread->stats.FinishedSingleOp(db_);
|
|
keys_left -= num_keys;
|
|
}
|
|
} else {
|
|
std::string value;
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % range;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
if (db_->Get(options, key.get(), &value).ok()){
|
|
++found;
|
|
}
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
}
|
|
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%lld of %lld found)", found, reads_);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
void IteratorCreation(ThreadState* thread) {
|
|
Duration duration(FLAGS_duration, reads_);
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
while (!duration.Done(1)) {
|
|
Iterator* iter = db_->NewIterator(options);
|
|
delete iter;
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
}
|
|
|
|
void SeekRandom(ThreadState* thread) {
|
|
Duration duration(FLAGS_duration, reads_);
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
std::string value;
|
|
long long found = 0;
|
|
while (!duration.Done(1)) {
|
|
Iterator* iter = db_->NewIterator(options);
|
|
const long long k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
iter->Seek(key.get());
|
|
if (iter->Valid() && iter->key() == key.get()) found++;
|
|
delete iter;
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "(%lld of %lld found)", found, num_);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
void DoDelete(ThreadState* thread, bool seq) {
|
|
WriteBatch batch;
|
|
Status s;
|
|
Duration duration(seq ? 0 : FLAGS_duration, num_);
|
|
long i = 0;
|
|
while (!duration.Done(entries_per_batch_)) {
|
|
batch.Clear();
|
|
for (int j = 0; j < entries_per_batch_; j++) {
|
|
const long long k = seq ? i+j : (thread->rand.Next() % FLAGS_num);
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
batch.Delete(key.get());
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
s = db_->Write(write_options_, &batch);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "del error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
++i;
|
|
}
|
|
}
|
|
|
|
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 {
|
|
// 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;
|
|
|
|
// --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();
|
|
|
|
while (true) {
|
|
{
|
|
MutexLock l(&thread->shared->mu);
|
|
if (thread->shared->num_done + 1 >= thread->shared->num_initialized) {
|
|
// Other threads have finished
|
|
break;
|
|
}
|
|
}
|
|
|
|
const long long k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
Status s = db_->Put(write_options_, key.get(),
|
|
gen.Generate(value_size_));
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
thread->stats.FinishedSingleOp(db_);
|
|
|
|
++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();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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(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(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(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;
|
|
long long found = 0;
|
|
int get_weight = 0;
|
|
int put_weight = 0;
|
|
int delete_weight = 0;
|
|
long long gets_done = 0;
|
|
long long puts_done = 0;
|
|
long long deletes_done = 0;
|
|
|
|
// the number of iterations is the larger of read_ or write_
|
|
for (long long i = 0; i < readwrites_; i++) {
|
|
const long long k = thread->rand.Next() % (FLAGS_numdistinct);
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
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;
|
|
}
|
|
if (get_weight > 0) {
|
|
// do all the gets first
|
|
Status s = GetMany(options, key.get(), &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(write_options_, key.get(),
|
|
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(write_options_, key.get());
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "deletemany error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
delete_weight--;
|
|
deletes_done++;
|
|
}
|
|
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg),
|
|
"( get:%lld put:%lld del:%lld total:%lld found:%lld)",
|
|
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) {
|
|
if (FLAGS_use_multiget){
|
|
// Separate function for multiget (for ease of reading)
|
|
ReadRandomWriteRandomMultiGet(thread);
|
|
return;
|
|
}
|
|
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
RandomGenerator gen;
|
|
std::string value;
|
|
long long found = 0;
|
|
int get_weight = 0;
|
|
int put_weight = 0;
|
|
long long reads_done = 0;
|
|
long long writes_done = 0;
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
|
|
// the number of iterations is the larger of read_ or write_
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
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) {
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
options.snapshot = db_->GetSnapshot();
|
|
}
|
|
|
|
if (FLAGS_get_approx) {
|
|
char key2[100];
|
|
snprintf(key2, sizeof(key2), "%016lld", k + 1);
|
|
Slice skey2(key2);
|
|
Slice skey(key2);
|
|
Range range(skey, skey2);
|
|
uint64_t sizes;
|
|
db_->GetApproximateSizes(&range, 1, &sizes);
|
|
}
|
|
|
|
// do all the gets first
|
|
Status s = db_->Get(options, key.get(), &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++;
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
db_->ReleaseSnapshot(options.snapshot);
|
|
}
|
|
|
|
} 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.get(),
|
|
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.FinishedSingleOp(db_);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg),
|
|
"( reads:%lld writes:%lld total:%lld found:%lld)",
|
|
reads_done, writes_done, readwrites_, found);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
// ReadRandomWriteRandom (with multiget)
|
|
// Does FLAGS_keys_per_multiget reads (per multiget), followed by some puts.
|
|
// FLAGS_readwritepercent will specify the ratio of gets to puts.
|
|
// e.g.: If FLAGS_keys_per_multiget == 100 and FLAGS_readwritepercent == 75
|
|
// Then each block will do 100 multigets and 33 puts
|
|
// So there are 133 operations in-total: 100 of them (75%) are gets, and 33
|
|
// of them (25%) are puts.
|
|
void ReadRandomWriteRandomMultiGet(ThreadState* thread) {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
RandomGenerator gen;
|
|
|
|
// For multiget
|
|
const long& kpg = FLAGS_keys_per_multiget; // keys per multiget group
|
|
|
|
long keys_left = readwrites_; // number of keys still left to read
|
|
long num_keys; // number of keys to read in current group
|
|
long num_put_keys; // number of keys to put in current group
|
|
|
|
long found = 0;
|
|
long reads_done = 0;
|
|
long writes_done = 0;
|
|
long multigets_done = 0;
|
|
|
|
// the number of iterations is the larger of read_ or write_
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
while(true) {
|
|
// Read num_keys keys, then write num_put_keys keys.
|
|
// The ratio of num_keys to num_put_keys is always FLAGS_readwritepercent
|
|
// And num_keys is set to be FLAGS_keys_per_multiget (kpg)
|
|
// num_put_keys is calculated accordingly (to maintain the ratio)
|
|
// Note: On the final iteration, num_keys and num_put_keys will be smaller
|
|
num_keys = std::min(keys_left*(FLAGS_readwritepercent + 99)/100, kpg);
|
|
num_put_keys = num_keys * (100-FLAGS_readwritepercent)
|
|
/ FLAGS_readwritepercent;
|
|
|
|
// This will break the loop when duration is complete
|
|
if (duration.Done(num_keys + num_put_keys)) {
|
|
break;
|
|
}
|
|
|
|
// A quick check to make sure our formula doesn't break on edge cases
|
|
assert(num_keys >= 1);
|
|
assert(num_keys + num_put_keys <= keys_left);
|
|
|
|
// Apply the MultiGet operations
|
|
found += MultiGetRandom(options, num_keys, thread->rand, FLAGS_num, "");
|
|
++multigets_done;
|
|
reads_done+=num_keys;
|
|
thread->stats.FinishedSingleOp(db_);
|
|
|
|
// Now do the puts
|
|
int i;
|
|
long long k;
|
|
for(i=0; i<num_put_keys; ++i) {
|
|
k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
Status s = db_->Put(write_options_, key.get(),
|
|
gen.Generate(value_size_));
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
writes_done++;
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
|
|
keys_left -= (num_keys + num_put_keys);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg),
|
|
"( reads:%ld writes:%ld total:%lld multiget_ops:%ld found:%ld)",
|
|
reads_done, writes_done, readwrites_, multigets_done, 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;
|
|
long long found = 0;
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
|
|
// the number of iterations is the larger of read_ or write_
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
options.snapshot = db_->GetSnapshot();
|
|
}
|
|
|
|
if (FLAGS_get_approx) {
|
|
char key2[100];
|
|
snprintf(key2, sizeof(key2), "%016lld", k + 1);
|
|
Slice skey2(key2);
|
|
Slice skey(key2);
|
|
Range range(skey, skey2);
|
|
uint64_t sizes;
|
|
db_->GetApproximateSizes(&range, 1, &sizes);
|
|
}
|
|
|
|
if (db_->Get(options, key.get(), &value).ok()) {
|
|
found++;
|
|
}
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
db_->ReleaseSnapshot(options.snapshot);
|
|
}
|
|
|
|
Status s = db_->Put(write_options_, key.get(), gen.Generate(value_size_));
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg),
|
|
"( updates:%lld found:%lld)", readwrites_, found);
|
|
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;
|
|
long found = 0;
|
|
|
|
// The number of iterations is the larger of read_ or write_
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % FLAGS_num;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
options.snapshot = db_->GetSnapshot();
|
|
}
|
|
|
|
if (FLAGS_get_approx) {
|
|
char key2[100];
|
|
snprintf(key2, sizeof(key2), "%016lld", k + 1);
|
|
Slice skey2(key2);
|
|
Slice skey(key2);
|
|
Range range(skey, skey2);
|
|
uint64_t sizes;
|
|
db_->GetApproximateSizes(&range, 1, &sizes);
|
|
}
|
|
|
|
// Get the existing value
|
|
if (db_->Get(options, key.get(), &value).ok()) {
|
|
found++;
|
|
} else {
|
|
// If not existing, then just assume an empty string of data
|
|
value.clear();
|
|
}
|
|
|
|
if (FLAGS_use_snapshot) {
|
|
db_->ReleaseSnapshot(options.snapshot);
|
|
}
|
|
|
|
// 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.get(), value);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "put error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "( updates:%lld found:%ld)", readwrites_, found);
|
|
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;
|
|
|
|
// The number of iterations is the larger of read_ or write_
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % merge_keys_;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
|
|
Status s = db_->Merge(write_options_, key.get(),
|
|
gen.Generate(value_size_));
|
|
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "merge error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
thread->stats.FinishedSingleOp(db_);
|
|
}
|
|
|
|
// Print some statistics
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg), "( updates:%lld)", readwrites_);
|
|
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;
|
|
long long num_hits = 0;
|
|
long long num_gets = 0;
|
|
long long num_merges = 0;
|
|
size_t max_length = 0;
|
|
|
|
// the number of iterations is the larger of read_ or write_
|
|
Duration duration(FLAGS_duration, readwrites_);
|
|
|
|
while (!duration.Done(1)) {
|
|
const long long k = thread->rand.Next() % merge_keys_;
|
|
unique_ptr<char []> key = GenerateKeyFromInt(k);
|
|
|
|
bool do_merge = int(thread->rand.Next() % 100) < FLAGS_mergereadpercent;
|
|
|
|
if (do_merge) {
|
|
Status s = db_->Merge(write_options_, key.get(),
|
|
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.get(), &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.FinishedSingleOp(db_);
|
|
}
|
|
char msg[100];
|
|
snprintf(msg, sizeof(msg),
|
|
"(reads:%lld merges:%lld total:%lld hits:%lld maxlength:%zu)",
|
|
num_gets, num_merges, readwrites_, num_hits, max_length);
|
|
thread->stats.AddMessage(msg);
|
|
}
|
|
|
|
|
|
void Compact(ThreadState* thread) {
|
|
db_->CompactRange(nullptr, nullptr);
|
|
}
|
|
|
|
void PrintStats(const char* key) {
|
|
std::string stats;
|
|
if (!db_->GetProperty(key, &stats)) {
|
|
stats = "(failed)";
|
|
}
|
|
fprintf(stdout, "\n%s\n", stats.c_str());
|
|
}
|
|
|
|
static void WriteToFile(void* arg, const char* buf, int n) {
|
|
reinterpret_cast<WritableFile*>(arg)->Append(Slice(buf, n));
|
|
}
|
|
|
|
void HeapProfile() {
|
|
char fname[100];
|
|
EnvOptions soptions;
|
|
snprintf(fname, sizeof(fname), "%s/heap-%04d", FLAGS_db.c_str(),
|
|
++heap_counter_);
|
|
unique_ptr<WritableFile> file;
|
|
Status s = FLAGS_env->NewWritableFile(fname, &file, soptions);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "%s\n", s.ToString().c_str());
|
|
return;
|
|
}
|
|
bool ok = port::GetHeapProfile(WriteToFile, file.get());
|
|
if (!ok) {
|
|
fprintf(stderr, "heap profiling not supported\n");
|
|
FLAGS_env->DeleteFile(fname);
|
|
}
|
|
}
|
|
};
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
rocksdb::InstallStackTraceHandler();
|
|
google::SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
|
|
" [OPTIONS]...");
|
|
google::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(
|
|
std::stoi(fanout[j]));
|
|
}
|
|
|
|
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);
|
|
// 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;
|
|
}
|
|
|
|
rocksdb::Benchmark benchmark;
|
|
benchmark.Run();
|
|
return 0;
|
|
}
|