Summary: There are too many types of files under util/. Some test related files don't belong to there or just are just loosely related. Mo ve them to a new directory test_util/, so that util/ is cleaner. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5377 Differential Revision: D15551366 Pulled By: siying fbshipit-source-id: 0f5c8653832354ef8caa31749c0143815d719e2c
980 lines
33 KiB
C++
980 lines
33 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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#include <algorithm>
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#include <iostream>
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#include <thread>
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#include <vector>
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#include "monitoring/histogram.h"
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#include "monitoring/instrumented_mutex.h"
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#include "monitoring/perf_context_imp.h"
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#include "monitoring/thread_status_util.h"
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#include "port/port.h"
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#include "rocksdb/db.h"
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#include "rocksdb/memtablerep.h"
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#include "rocksdb/perf_context.h"
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#include "rocksdb/slice_transform.h"
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#include "util/stop_watch.h"
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#include "util/string_util.h"
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#include "test_util/testharness.h"
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#include "utilities/merge_operators.h"
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bool FLAGS_random_key = false;
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bool FLAGS_use_set_based_memetable = false;
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int FLAGS_total_keys = 100;
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int FLAGS_write_buffer_size = 1000000000;
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int FLAGS_max_write_buffer_number = 8;
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int FLAGS_min_write_buffer_number_to_merge = 7;
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bool FLAGS_verbose = false;
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// Path to the database on file system
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const std::string kDbName = rocksdb::test::PerThreadDBPath("perf_context_test");
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namespace rocksdb {
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std::shared_ptr<DB> OpenDb(bool read_only = false) {
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DB* db;
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Options options;
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options.create_if_missing = true;
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options.max_open_files = -1;
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options.write_buffer_size = FLAGS_write_buffer_size;
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options.max_write_buffer_number = FLAGS_max_write_buffer_number;
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options.min_write_buffer_number_to_merge =
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FLAGS_min_write_buffer_number_to_merge;
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if (FLAGS_use_set_based_memetable) {
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#ifndef ROCKSDB_LITE
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options.prefix_extractor.reset(rocksdb::NewFixedPrefixTransform(0));
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options.memtable_factory.reset(NewHashSkipListRepFactory());
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#endif // ROCKSDB_LITE
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}
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Status s;
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if (!read_only) {
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s = DB::Open(options, kDbName, &db);
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} else {
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s = DB::OpenForReadOnly(options, kDbName, &db);
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}
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EXPECT_OK(s);
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return std::shared_ptr<DB>(db);
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}
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class PerfContextTest : public testing::Test {};
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TEST_F(PerfContextTest, SeekIntoDeletion) {
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DestroyDB(kDbName, Options());
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auto db = OpenDb();
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WriteOptions write_options;
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ReadOptions read_options;
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for (int i = 0; i < FLAGS_total_keys; ++i) {
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std::string key = "k" + ToString(i);
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std::string value = "v" + ToString(i);
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db->Put(write_options, key, value);
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}
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for (int i = 0; i < FLAGS_total_keys -1 ; ++i) {
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std::string key = "k" + ToString(i);
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db->Delete(write_options, key);
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}
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HistogramImpl hist_get;
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HistogramImpl hist_get_time;
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for (int i = 0; i < FLAGS_total_keys - 1; ++i) {
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std::string key = "k" + ToString(i);
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std::string value;
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get_perf_context()->Reset();
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StopWatchNano timer(Env::Default());
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timer.Start();
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auto status = db->Get(read_options, key, &value);
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auto elapsed_nanos = timer.ElapsedNanos();
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ASSERT_TRUE(status.IsNotFound());
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hist_get.Add(get_perf_context()->user_key_comparison_count);
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hist_get_time.Add(elapsed_nanos);
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}
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if (FLAGS_verbose) {
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std::cout << "Get user key comparison: \n" << hist_get.ToString()
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<< "Get time: \n" << hist_get_time.ToString();
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}
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{
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HistogramImpl hist_seek_to_first;
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std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
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get_perf_context()->Reset();
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StopWatchNano timer(Env::Default(), true);
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iter->SeekToFirst();
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hist_seek_to_first.Add(get_perf_context()->user_key_comparison_count);
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auto elapsed_nanos = timer.ElapsedNanos();
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if (FLAGS_verbose) {
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std::cout << "SeekToFirst uesr key comparison: \n"
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<< hist_seek_to_first.ToString()
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<< "ikey skipped: " << get_perf_context()->internal_key_skipped_count
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<< "\n"
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<< "idelete skipped: "
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<< get_perf_context()->internal_delete_skipped_count << "\n"
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<< "elapsed: " << elapsed_nanos << "\n";
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}
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}
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HistogramImpl hist_seek;
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for (int i = 0; i < FLAGS_total_keys; ++i) {
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std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
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std::string key = "k" + ToString(i);
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get_perf_context()->Reset();
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StopWatchNano timer(Env::Default(), true);
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iter->Seek(key);
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auto elapsed_nanos = timer.ElapsedNanos();
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hist_seek.Add(get_perf_context()->user_key_comparison_count);
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if (FLAGS_verbose) {
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std::cout << "seek cmp: " << get_perf_context()->user_key_comparison_count
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<< " ikey skipped " << get_perf_context()->internal_key_skipped_count
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<< " idelete skipped "
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<< get_perf_context()->internal_delete_skipped_count
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<< " elapsed: " << elapsed_nanos << "ns\n";
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}
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get_perf_context()->Reset();
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ASSERT_TRUE(iter->Valid());
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StopWatchNano timer2(Env::Default(), true);
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iter->Next();
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auto elapsed_nanos2 = timer2.ElapsedNanos();
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if (FLAGS_verbose) {
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std::cout << "next cmp: " << get_perf_context()->user_key_comparison_count
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<< "elapsed: " << elapsed_nanos2 << "ns\n";
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}
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}
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if (FLAGS_verbose) {
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std::cout << "Seek uesr key comparison: \n" << hist_seek.ToString();
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}
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}
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TEST_F(PerfContextTest, StopWatchNanoOverhead) {
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// profile the timer cost by itself!
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const int kTotalIterations = 1000000;
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std::vector<uint64_t> timings(kTotalIterations);
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StopWatchNano timer(Env::Default(), true);
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for (auto& timing : timings) {
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timing = timer.ElapsedNanos(true /* reset */);
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}
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HistogramImpl histogram;
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for (const auto timing : timings) {
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histogram.Add(timing);
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}
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if (FLAGS_verbose) {
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std::cout << histogram.ToString();
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}
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}
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TEST_F(PerfContextTest, StopWatchOverhead) {
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// profile the timer cost by itself!
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const int kTotalIterations = 1000000;
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uint64_t elapsed = 0;
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std::vector<uint64_t> timings(kTotalIterations);
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StopWatch timer(Env::Default(), nullptr, 0, &elapsed);
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for (auto& timing : timings) {
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timing = elapsed;
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}
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HistogramImpl histogram;
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uint64_t prev_timing = 0;
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for (const auto timing : timings) {
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histogram.Add(timing - prev_timing);
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prev_timing = timing;
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}
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if (FLAGS_verbose) {
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std::cout << histogram.ToString();
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}
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}
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void ProfileQueries(bool enabled_time = false) {
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DestroyDB(kDbName, Options()); // Start this test with a fresh DB
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auto db = OpenDb();
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WriteOptions write_options;
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ReadOptions read_options;
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HistogramImpl hist_put;
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HistogramImpl hist_get;
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HistogramImpl hist_get_snapshot;
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HistogramImpl hist_get_memtable;
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HistogramImpl hist_get_files;
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HistogramImpl hist_get_post_process;
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HistogramImpl hist_num_memtable_checked;
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HistogramImpl hist_mget;
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HistogramImpl hist_mget_snapshot;
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HistogramImpl hist_mget_memtable;
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HistogramImpl hist_mget_files;
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HistogramImpl hist_mget_post_process;
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HistogramImpl hist_mget_num_memtable_checked;
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HistogramImpl hist_write_pre_post;
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HistogramImpl hist_write_wal_time;
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HistogramImpl hist_write_memtable_time;
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HistogramImpl hist_write_delay_time;
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HistogramImpl hist_write_thread_wait_nanos;
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HistogramImpl hist_write_scheduling_time;
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uint64_t total_db_mutex_nanos = 0;
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if (FLAGS_verbose) {
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std::cout << "Inserting " << FLAGS_total_keys << " key/value pairs\n...\n";
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}
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std::vector<int> keys;
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const int kFlushFlag = -1;
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for (int i = 0; i < FLAGS_total_keys; ++i) {
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keys.push_back(i);
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if (i == FLAGS_total_keys / 2) {
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// Issuing a flush in the middle.
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keys.push_back(kFlushFlag);
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}
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}
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if (FLAGS_random_key) {
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std::random_shuffle(keys.begin(), keys.end());
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}
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#ifndef NDEBUG
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ThreadStatusUtil::TEST_SetStateDelay(ThreadStatus::STATE_MUTEX_WAIT, 1U);
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#endif
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int num_mutex_waited = 0;
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for (const int i : keys) {
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if (i == kFlushFlag) {
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FlushOptions fo;
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db->Flush(fo);
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continue;
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}
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std::string key = "k" + ToString(i);
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std::string value = "v" + ToString(i);
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std::vector<std::string> values;
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get_perf_context()->Reset();
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db->Put(write_options, key, value);
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if (++num_mutex_waited > 3) {
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#ifndef NDEBUG
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ThreadStatusUtil::TEST_SetStateDelay(ThreadStatus::STATE_MUTEX_WAIT, 0U);
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#endif
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}
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hist_write_pre_post.Add(
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get_perf_context()->write_pre_and_post_process_time);
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hist_write_wal_time.Add(get_perf_context()->write_wal_time);
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hist_write_memtable_time.Add(get_perf_context()->write_memtable_time);
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hist_write_delay_time.Add(get_perf_context()->write_delay_time);
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hist_write_thread_wait_nanos.Add(
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get_perf_context()->write_thread_wait_nanos);
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hist_write_scheduling_time.Add(
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get_perf_context()->write_scheduling_flushes_compactions_time);
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hist_put.Add(get_perf_context()->user_key_comparison_count);
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total_db_mutex_nanos += get_perf_context()->db_mutex_lock_nanos;
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}
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#ifndef NDEBUG
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ThreadStatusUtil::TEST_SetStateDelay(ThreadStatus::STATE_MUTEX_WAIT, 0U);
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#endif
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for (const int i : keys) {
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if (i == kFlushFlag) {
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continue;
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}
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std::string key = "k" + ToString(i);
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std::string expected_value = "v" + ToString(i);
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std::string value;
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std::vector<Slice> multiget_keys = {Slice(key)};
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std::vector<std::string> values;
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get_perf_context()->Reset();
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ASSERT_OK(db->Get(read_options, key, &value));
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ASSERT_EQ(expected_value, value);
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hist_get_snapshot.Add(get_perf_context()->get_snapshot_time);
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hist_get_memtable.Add(get_perf_context()->get_from_memtable_time);
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hist_get_files.Add(get_perf_context()->get_from_output_files_time);
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hist_num_memtable_checked.Add(get_perf_context()->get_from_memtable_count);
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hist_get_post_process.Add(get_perf_context()->get_post_process_time);
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hist_get.Add(get_perf_context()->user_key_comparison_count);
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get_perf_context()->Reset();
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db->MultiGet(read_options, multiget_keys, &values);
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hist_mget_snapshot.Add(get_perf_context()->get_snapshot_time);
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hist_mget_memtable.Add(get_perf_context()->get_from_memtable_time);
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hist_mget_files.Add(get_perf_context()->get_from_output_files_time);
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hist_mget_num_memtable_checked.Add(get_perf_context()->get_from_memtable_count);
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hist_mget_post_process.Add(get_perf_context()->get_post_process_time);
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hist_mget.Add(get_perf_context()->user_key_comparison_count);
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}
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if (FLAGS_verbose) {
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std::cout << "Put uesr key comparison: \n" << hist_put.ToString()
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<< "Get uesr key comparison: \n" << hist_get.ToString()
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<< "MultiGet uesr key comparison: \n" << hist_get.ToString();
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std::cout << "Put(): Pre and Post Process Time: \n"
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<< hist_write_pre_post.ToString() << " Writing WAL time: \n"
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<< hist_write_wal_time.ToString() << "\n"
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<< " Writing Mem Table time: \n"
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<< hist_write_memtable_time.ToString() << "\n"
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<< " Write Delay: \n" << hist_write_delay_time.ToString() << "\n"
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<< " Waiting for Batch time: \n"
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<< hist_write_thread_wait_nanos.ToString() << "\n"
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<< " Scheduling Flushes and Compactions Time: \n"
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<< hist_write_scheduling_time.ToString() << "\n"
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<< " Total DB mutex nanos: \n" << total_db_mutex_nanos << "\n";
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std::cout << "Get(): Time to get snapshot: \n"
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<< hist_get_snapshot.ToString()
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<< " Time to get value from memtables: \n"
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<< hist_get_memtable.ToString() << "\n"
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<< " Time to get value from output files: \n"
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<< hist_get_files.ToString() << "\n"
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<< " Number of memtables checked: \n"
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<< hist_num_memtable_checked.ToString() << "\n"
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<< " Time to post process: \n" << hist_get_post_process.ToString()
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<< "\n";
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std::cout << "MultiGet(): Time to get snapshot: \n"
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<< hist_mget_snapshot.ToString()
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<< " Time to get value from memtables: \n"
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<< hist_mget_memtable.ToString() << "\n"
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<< " Time to get value from output files: \n"
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<< hist_mget_files.ToString() << "\n"
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<< " Number of memtables checked: \n"
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<< hist_mget_num_memtable_checked.ToString() << "\n"
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<< " Time to post process: \n"
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<< hist_mget_post_process.ToString() << "\n";
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}
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if (enabled_time) {
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ASSERT_GT(hist_get.Average(), 0);
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ASSERT_GT(hist_get_snapshot.Average(), 0);
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ASSERT_GT(hist_get_memtable.Average(), 0);
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ASSERT_GT(hist_get_files.Average(), 0);
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ASSERT_GT(hist_get_post_process.Average(), 0);
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ASSERT_GT(hist_num_memtable_checked.Average(), 0);
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ASSERT_GT(hist_mget.Average(), 0);
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ASSERT_GT(hist_mget_snapshot.Average(), 0);
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ASSERT_GT(hist_mget_memtable.Average(), 0);
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ASSERT_GT(hist_mget_files.Average(), 0);
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ASSERT_GT(hist_mget_post_process.Average(), 0);
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ASSERT_GT(hist_mget_num_memtable_checked.Average(), 0);
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EXPECT_GT(hist_write_pre_post.Average(), 0);
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EXPECT_GT(hist_write_wal_time.Average(), 0);
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EXPECT_GT(hist_write_memtable_time.Average(), 0);
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EXPECT_EQ(hist_write_delay_time.Average(), 0);
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EXPECT_EQ(hist_write_thread_wait_nanos.Average(), 0);
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EXPECT_GT(hist_write_scheduling_time.Average(), 0);
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#ifndef NDEBUG
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ASSERT_GT(total_db_mutex_nanos, 2000U);
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#endif
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}
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db.reset();
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db = OpenDb(true);
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hist_get.Clear();
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hist_get_snapshot.Clear();
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hist_get_memtable.Clear();
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hist_get_files.Clear();
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hist_get_post_process.Clear();
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hist_num_memtable_checked.Clear();
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hist_mget.Clear();
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hist_mget_snapshot.Clear();
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hist_mget_memtable.Clear();
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hist_mget_files.Clear();
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hist_mget_post_process.Clear();
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hist_mget_num_memtable_checked.Clear();
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for (const int i : keys) {
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if (i == kFlushFlag) {
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continue;
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}
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std::string key = "k" + ToString(i);
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std::string expected_value = "v" + ToString(i);
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std::string value;
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std::vector<Slice> multiget_keys = {Slice(key)};
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std::vector<std::string> values;
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get_perf_context()->Reset();
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ASSERT_OK(db->Get(read_options, key, &value));
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ASSERT_EQ(expected_value, value);
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hist_get_snapshot.Add(get_perf_context()->get_snapshot_time);
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hist_get_memtable.Add(get_perf_context()->get_from_memtable_time);
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hist_get_files.Add(get_perf_context()->get_from_output_files_time);
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hist_num_memtable_checked.Add(get_perf_context()->get_from_memtable_count);
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hist_get_post_process.Add(get_perf_context()->get_post_process_time);
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hist_get.Add(get_perf_context()->user_key_comparison_count);
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get_perf_context()->Reset();
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db->MultiGet(read_options, multiget_keys, &values);
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hist_mget_snapshot.Add(get_perf_context()->get_snapshot_time);
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hist_mget_memtable.Add(get_perf_context()->get_from_memtable_time);
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hist_mget_files.Add(get_perf_context()->get_from_output_files_time);
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hist_mget_num_memtable_checked.Add(get_perf_context()->get_from_memtable_count);
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hist_mget_post_process.Add(get_perf_context()->get_post_process_time);
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hist_mget.Add(get_perf_context()->user_key_comparison_count);
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}
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if (FLAGS_verbose) {
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std::cout << "ReadOnly Get uesr key comparison: \n" << hist_get.ToString()
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<< "ReadOnly MultiGet uesr key comparison: \n"
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<< hist_mget.ToString();
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std::cout << "ReadOnly Get(): Time to get snapshot: \n"
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<< hist_get_snapshot.ToString()
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<< " Time to get value from memtables: \n"
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<< hist_get_memtable.ToString() << "\n"
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<< " Time to get value from output files: \n"
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<< hist_get_files.ToString() << "\n"
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<< " Number of memtables checked: \n"
|
|
<< hist_num_memtable_checked.ToString() << "\n"
|
|
<< " Time to post process: \n" << hist_get_post_process.ToString()
|
|
<< "\n";
|
|
|
|
std::cout << "ReadOnly MultiGet(): Time to get snapshot: \n"
|
|
<< hist_mget_snapshot.ToString()
|
|
<< " Time to get value from memtables: \n"
|
|
<< hist_mget_memtable.ToString() << "\n"
|
|
<< " Time to get value from output files: \n"
|
|
<< hist_mget_files.ToString() << "\n"
|
|
<< " Number of memtables checked: \n"
|
|
<< hist_mget_num_memtable_checked.ToString() << "\n"
|
|
<< " Time to post process: \n"
|
|
<< hist_mget_post_process.ToString() << "\n";
|
|
}
|
|
|
|
if (enabled_time) {
|
|
ASSERT_GT(hist_get.Average(), 0);
|
|
ASSERT_GT(hist_get_memtable.Average(), 0);
|
|
ASSERT_GT(hist_get_files.Average(), 0);
|
|
ASSERT_GT(hist_num_memtable_checked.Average(), 0);
|
|
// In read-only mode Get(), no super version operation is needed
|
|
ASSERT_EQ(hist_get_post_process.Average(), 0);
|
|
ASSERT_GT(hist_get_snapshot.Average(), 0);
|
|
|
|
ASSERT_GT(hist_mget.Average(), 0);
|
|
ASSERT_GT(hist_mget_snapshot.Average(), 0);
|
|
ASSERT_GT(hist_mget_memtable.Average(), 0);
|
|
ASSERT_GT(hist_mget_files.Average(), 0);
|
|
ASSERT_GT(hist_mget_post_process.Average(), 0);
|
|
ASSERT_GT(hist_mget_num_memtable_checked.Average(), 0);
|
|
}
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
TEST_F(PerfContextTest, KeyComparisonCount) {
|
|
SetPerfLevel(kEnableCount);
|
|
ProfileQueries();
|
|
|
|
SetPerfLevel(kDisable);
|
|
ProfileQueries();
|
|
|
|
SetPerfLevel(kEnableTime);
|
|
ProfileQueries(true);
|
|
}
|
|
#endif // ROCKSDB_LITE
|
|
|
|
// make perf_context_test
|
|
// export ROCKSDB_TESTS=PerfContextTest.SeekKeyComparison
|
|
// For one memtable:
|
|
// ./perf_context_test --write_buffer_size=500000 --total_keys=10000
|
|
// For two memtables:
|
|
// ./perf_context_test --write_buffer_size=250000 --total_keys=10000
|
|
// Specify --random_key=1 to shuffle the key before insertion
|
|
// Results show that, for sequential insertion, worst-case Seek Key comparison
|
|
// is close to the total number of keys (linear), when there is only one
|
|
// memtable. When there are two memtables, even the avg Seek Key comparison
|
|
// starts to become linear to the input size.
|
|
|
|
TEST_F(PerfContextTest, SeekKeyComparison) {
|
|
DestroyDB(kDbName, Options());
|
|
auto db = OpenDb();
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Inserting " << FLAGS_total_keys << " key/value pairs\n...\n";
|
|
}
|
|
|
|
std::vector<int> keys;
|
|
for (int i = 0; i < FLAGS_total_keys; ++i) {
|
|
keys.push_back(i);
|
|
}
|
|
|
|
if (FLAGS_random_key) {
|
|
std::random_shuffle(keys.begin(), keys.end());
|
|
}
|
|
|
|
HistogramImpl hist_put_time;
|
|
HistogramImpl hist_wal_time;
|
|
HistogramImpl hist_time_diff;
|
|
|
|
SetPerfLevel(kEnableTime);
|
|
StopWatchNano timer(Env::Default());
|
|
for (const int i : keys) {
|
|
std::string key = "k" + ToString(i);
|
|
std::string value = "v" + ToString(i);
|
|
|
|
get_perf_context()->Reset();
|
|
timer.Start();
|
|
db->Put(write_options, key, value);
|
|
auto put_time = timer.ElapsedNanos();
|
|
hist_put_time.Add(put_time);
|
|
hist_wal_time.Add(get_perf_context()->write_wal_time);
|
|
hist_time_diff.Add(put_time - get_perf_context()->write_wal_time);
|
|
}
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Put time:\n" << hist_put_time.ToString() << "WAL time:\n"
|
|
<< hist_wal_time.ToString() << "time diff:\n"
|
|
<< hist_time_diff.ToString();
|
|
}
|
|
|
|
HistogramImpl hist_seek;
|
|
HistogramImpl hist_next;
|
|
|
|
for (int i = 0; i < FLAGS_total_keys; ++i) {
|
|
std::string key = "k" + ToString(i);
|
|
std::string value = "v" + ToString(i);
|
|
|
|
std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
|
|
get_perf_context()->Reset();
|
|
iter->Seek(key);
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->value().ToString(), value);
|
|
hist_seek.Add(get_perf_context()->user_key_comparison_count);
|
|
}
|
|
|
|
std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
|
|
for (iter->SeekToFirst(); iter->Valid();) {
|
|
get_perf_context()->Reset();
|
|
iter->Next();
|
|
hist_next.Add(get_perf_context()->user_key_comparison_count);
|
|
}
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Seek:\n" << hist_seek.ToString() << "Next:\n"
|
|
<< hist_next.ToString();
|
|
}
|
|
}
|
|
|
|
TEST_F(PerfContextTest, DBMutexLockCounter) {
|
|
int stats_code[] = {0, static_cast<int>(DB_MUTEX_WAIT_MICROS)};
|
|
for (PerfLevel perf_level_test :
|
|
{PerfLevel::kEnableTimeExceptForMutex, PerfLevel::kEnableTime}) {
|
|
for (int c = 0; c < 2; ++c) {
|
|
InstrumentedMutex mutex(nullptr, Env::Default(), stats_code[c]);
|
|
mutex.Lock();
|
|
rocksdb::port::Thread child_thread([&] {
|
|
SetPerfLevel(perf_level_test);
|
|
get_perf_context()->Reset();
|
|
ASSERT_EQ(get_perf_context()->db_mutex_lock_nanos, 0);
|
|
mutex.Lock();
|
|
mutex.Unlock();
|
|
if (perf_level_test == PerfLevel::kEnableTimeExceptForMutex ||
|
|
stats_code[c] != DB_MUTEX_WAIT_MICROS) {
|
|
ASSERT_EQ(get_perf_context()->db_mutex_lock_nanos, 0);
|
|
} else {
|
|
// increment the counter only when it's a DB Mutex
|
|
ASSERT_GT(get_perf_context()->db_mutex_lock_nanos, 0);
|
|
}
|
|
});
|
|
Env::Default()->SleepForMicroseconds(100);
|
|
mutex.Unlock();
|
|
child_thread.join();
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(PerfContextTest, FalseDBMutexWait) {
|
|
SetPerfLevel(kEnableTime);
|
|
int stats_code[] = {0, static_cast<int>(DB_MUTEX_WAIT_MICROS)};
|
|
for (int c = 0; c < 2; ++c) {
|
|
InstrumentedMutex mutex(nullptr, Env::Default(), stats_code[c]);
|
|
InstrumentedCondVar lock(&mutex);
|
|
get_perf_context()->Reset();
|
|
mutex.Lock();
|
|
lock.TimedWait(100);
|
|
mutex.Unlock();
|
|
if (stats_code[c] == static_cast<int>(DB_MUTEX_WAIT_MICROS)) {
|
|
// increment the counter only when it's a DB Mutex
|
|
ASSERT_GT(get_perf_context()->db_condition_wait_nanos, 0);
|
|
} else {
|
|
ASSERT_EQ(get_perf_context()->db_condition_wait_nanos, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(PerfContextTest, ToString) {
|
|
get_perf_context()->Reset();
|
|
get_perf_context()->block_read_count = 12345;
|
|
|
|
std::string zero_included = get_perf_context()->ToString();
|
|
ASSERT_NE(std::string::npos, zero_included.find("= 0"));
|
|
ASSERT_NE(std::string::npos, zero_included.find("= 12345"));
|
|
|
|
std::string zero_excluded = get_perf_context()->ToString(true);
|
|
ASSERT_EQ(std::string::npos, zero_excluded.find("= 0"));
|
|
ASSERT_NE(std::string::npos, zero_excluded.find("= 12345"));
|
|
}
|
|
|
|
TEST_F(PerfContextTest, MergeOperatorTime) {
|
|
DestroyDB(kDbName, Options());
|
|
DB* db;
|
|
Options options;
|
|
options.create_if_missing = true;
|
|
options.merge_operator = MergeOperators::CreateStringAppendOperator();
|
|
Status s = DB::Open(options, kDbName, &db);
|
|
EXPECT_OK(s);
|
|
|
|
std::string val;
|
|
ASSERT_OK(db->Merge(WriteOptions(), "k1", "val1"));
|
|
ASSERT_OK(db->Merge(WriteOptions(), "k1", "val2"));
|
|
ASSERT_OK(db->Merge(WriteOptions(), "k1", "val3"));
|
|
ASSERT_OK(db->Merge(WriteOptions(), "k1", "val4"));
|
|
|
|
SetPerfLevel(kEnableTime);
|
|
get_perf_context()->Reset();
|
|
ASSERT_OK(db->Get(ReadOptions(), "k1", &val));
|
|
#ifdef OS_SOLARIS
|
|
for (int i = 0; i < 100; i++) {
|
|
ASSERT_OK(db->Get(ReadOptions(), "k1", &val));
|
|
}
|
|
#endif
|
|
EXPECT_GT(get_perf_context()->merge_operator_time_nanos, 0);
|
|
|
|
ASSERT_OK(db->Flush(FlushOptions()));
|
|
|
|
get_perf_context()->Reset();
|
|
ASSERT_OK(db->Get(ReadOptions(), "k1", &val));
|
|
#ifdef OS_SOLARIS
|
|
for (int i = 0; i < 100; i++) {
|
|
ASSERT_OK(db->Get(ReadOptions(), "k1", &val));
|
|
}
|
|
#endif
|
|
EXPECT_GT(get_perf_context()->merge_operator_time_nanos, 0);
|
|
|
|
ASSERT_OK(db->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
|
|
get_perf_context()->Reset();
|
|
ASSERT_OK(db->Get(ReadOptions(), "k1", &val));
|
|
#ifdef OS_SOLARIS
|
|
for (int i = 0; i < 100; i++) {
|
|
ASSERT_OK(db->Get(ReadOptions(), "k1", &val));
|
|
}
|
|
#endif
|
|
EXPECT_GT(get_perf_context()->merge_operator_time_nanos, 0);
|
|
|
|
delete db;
|
|
}
|
|
|
|
TEST_F(PerfContextTest, CopyAndMove) {
|
|
// Assignment operator
|
|
{
|
|
get_perf_context()->Reset();
|
|
get_perf_context()->EnablePerLevelPerfContext();
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_useful, 1, 5);
|
|
ASSERT_EQ(
|
|
1,
|
|
(*(get_perf_context()->level_to_perf_context))[5].bloom_filter_useful);
|
|
PerfContext perf_context_assign;
|
|
perf_context_assign = *get_perf_context();
|
|
ASSERT_EQ(
|
|
1,
|
|
(*(perf_context_assign.level_to_perf_context))[5].bloom_filter_useful);
|
|
get_perf_context()->ClearPerLevelPerfContext();
|
|
get_perf_context()->Reset();
|
|
ASSERT_EQ(
|
|
1,
|
|
(*(perf_context_assign.level_to_perf_context))[5].bloom_filter_useful);
|
|
perf_context_assign.ClearPerLevelPerfContext();
|
|
perf_context_assign.Reset();
|
|
}
|
|
// Copy constructor
|
|
{
|
|
get_perf_context()->Reset();
|
|
get_perf_context()->EnablePerLevelPerfContext();
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_useful, 1, 5);
|
|
ASSERT_EQ(
|
|
1,
|
|
(*(get_perf_context()->level_to_perf_context))[5].bloom_filter_useful);
|
|
PerfContext perf_context_copy(*get_perf_context());
|
|
ASSERT_EQ(
|
|
1, (*(perf_context_copy.level_to_perf_context))[5].bloom_filter_useful);
|
|
get_perf_context()->ClearPerLevelPerfContext();
|
|
get_perf_context()->Reset();
|
|
ASSERT_EQ(
|
|
1, (*(perf_context_copy.level_to_perf_context))[5].bloom_filter_useful);
|
|
perf_context_copy.ClearPerLevelPerfContext();
|
|
perf_context_copy.Reset();
|
|
}
|
|
// Move constructor
|
|
{
|
|
get_perf_context()->Reset();
|
|
get_perf_context()->EnablePerLevelPerfContext();
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_useful, 1, 5);
|
|
ASSERT_EQ(
|
|
1,
|
|
(*(get_perf_context()->level_to_perf_context))[5].bloom_filter_useful);
|
|
PerfContext perf_context_move = std::move(*get_perf_context());
|
|
ASSERT_EQ(
|
|
1, (*(perf_context_move.level_to_perf_context))[5].bloom_filter_useful);
|
|
get_perf_context()->ClearPerLevelPerfContext();
|
|
get_perf_context()->Reset();
|
|
ASSERT_EQ(
|
|
1, (*(perf_context_move.level_to_perf_context))[5].bloom_filter_useful);
|
|
perf_context_move.ClearPerLevelPerfContext();
|
|
perf_context_move.Reset();
|
|
}
|
|
}
|
|
|
|
TEST_F(PerfContextTest, PerfContextDisableEnable) {
|
|
get_perf_context()->Reset();
|
|
get_perf_context()->EnablePerLevelPerfContext();
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_full_positive, 1, 0);
|
|
get_perf_context()->DisablePerLevelPerfContext();
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_useful, 1, 5);
|
|
get_perf_context()->EnablePerLevelPerfContext();
|
|
PERF_COUNTER_BY_LEVEL_ADD(block_cache_hit_count, 1, 0);
|
|
get_perf_context()->DisablePerLevelPerfContext();
|
|
PerfContext perf_context_copy(*get_perf_context());
|
|
ASSERT_EQ(1, (*(perf_context_copy.level_to_perf_context))[0]
|
|
.bloom_filter_full_positive);
|
|
// this was set when per level perf context is disabled, should not be copied
|
|
ASSERT_NE(
|
|
1, (*(perf_context_copy.level_to_perf_context))[5].bloom_filter_useful);
|
|
ASSERT_EQ(
|
|
1, (*(perf_context_copy.level_to_perf_context))[0].block_cache_hit_count);
|
|
perf_context_copy.ClearPerLevelPerfContext();
|
|
perf_context_copy.Reset();
|
|
get_perf_context()->ClearPerLevelPerfContext();
|
|
get_perf_context()->Reset();
|
|
}
|
|
|
|
TEST_F(PerfContextTest, PerfContextByLevelGetSet) {
|
|
get_perf_context()->Reset();
|
|
get_perf_context()->EnablePerLevelPerfContext();
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_full_positive, 1, 0);
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_useful, 1, 5);
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_useful, 1, 7);
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_useful, 1, 7);
|
|
PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_full_true_positive, 1, 2);
|
|
PERF_COUNTER_BY_LEVEL_ADD(block_cache_hit_count, 1, 0);
|
|
PERF_COUNTER_BY_LEVEL_ADD(block_cache_hit_count, 5, 2);
|
|
PERF_COUNTER_BY_LEVEL_ADD(block_cache_miss_count, 2, 3);
|
|
PERF_COUNTER_BY_LEVEL_ADD(block_cache_miss_count, 4, 1);
|
|
ASSERT_EQ(
|
|
0, (*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful);
|
|
ASSERT_EQ(
|
|
1, (*(get_perf_context()->level_to_perf_context))[5].bloom_filter_useful);
|
|
ASSERT_EQ(
|
|
2, (*(get_perf_context()->level_to_perf_context))[7].bloom_filter_useful);
|
|
ASSERT_EQ(1, (*(get_perf_context()->level_to_perf_context))[0]
|
|
.bloom_filter_full_positive);
|
|
ASSERT_EQ(1, (*(get_perf_context()->level_to_perf_context))[2]
|
|
.bloom_filter_full_true_positive);
|
|
ASSERT_EQ(1, (*(get_perf_context()->level_to_perf_context))[0]
|
|
.block_cache_hit_count);
|
|
ASSERT_EQ(5, (*(get_perf_context()->level_to_perf_context))[2]
|
|
.block_cache_hit_count);
|
|
ASSERT_EQ(2, (*(get_perf_context()->level_to_perf_context))[3]
|
|
.block_cache_miss_count);
|
|
ASSERT_EQ(4, (*(get_perf_context()->level_to_perf_context))[1]
|
|
.block_cache_miss_count);
|
|
std::string zero_excluded = get_perf_context()->ToString(true);
|
|
ASSERT_NE(std::string::npos,
|
|
zero_excluded.find("bloom_filter_useful = 1@level5, 2@level7"));
|
|
ASSERT_NE(std::string::npos,
|
|
zero_excluded.find("bloom_filter_full_positive = 1@level0"));
|
|
ASSERT_NE(std::string::npos,
|
|
zero_excluded.find("bloom_filter_full_true_positive = 1@level2"));
|
|
ASSERT_NE(std::string::npos,
|
|
zero_excluded.find("block_cache_hit_count = 1@level0, 5@level2"));
|
|
ASSERT_NE(std::string::npos,
|
|
zero_excluded.find("block_cache_miss_count = 4@level1, 2@level3"));
|
|
}
|
|
|
|
TEST_F(PerfContextTest, CPUTimer) {
|
|
DestroyDB(kDbName, Options());
|
|
auto db = OpenDb();
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
SetPerfLevel(PerfLevel::kEnableTimeAndCPUTimeExceptForMutex);
|
|
|
|
std::string max_str = "0";
|
|
for (int i = 0; i < FLAGS_total_keys; ++i) {
|
|
std::string i_str = ToString(i);
|
|
std::string key = "k" + i_str;
|
|
std::string value = "v" + i_str;
|
|
max_str = max_str > i_str ? max_str : i_str;
|
|
|
|
db->Put(write_options, key, value);
|
|
}
|
|
std::string last_key = "k" + max_str;
|
|
std::string last_value = "v" + max_str;
|
|
|
|
{
|
|
// Get
|
|
get_perf_context()->Reset();
|
|
std::string value;
|
|
ASSERT_OK(db->Get(read_options, "k0", &value));
|
|
ASSERT_EQ(value, "v0");
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Get CPU time nanos: " << get_perf_context()->get_cpu_nanos
|
|
<< "ns\n";
|
|
}
|
|
|
|
// Iter
|
|
std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
|
|
|
|
// Seek
|
|
get_perf_context()->Reset();
|
|
iter->Seek(last_key);
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(last_value, iter->value().ToString());
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Iter Seek CPU time nanos: "
|
|
<< get_perf_context()->iter_seek_cpu_nanos << "ns\n";
|
|
}
|
|
|
|
// SeekForPrev
|
|
get_perf_context()->Reset();
|
|
iter->SeekForPrev(last_key);
|
|
ASSERT_TRUE(iter->Valid());
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Iter SeekForPrev CPU time nanos: "
|
|
<< get_perf_context()->iter_seek_cpu_nanos << "ns\n";
|
|
}
|
|
|
|
// SeekToLast
|
|
get_perf_context()->Reset();
|
|
iter->SeekToLast();
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(last_value, iter->value().ToString());
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Iter SeekToLast CPU time nanos: "
|
|
<< get_perf_context()->iter_seek_cpu_nanos << "ns\n";
|
|
}
|
|
|
|
// SeekToFirst
|
|
get_perf_context()->Reset();
|
|
iter->SeekToFirst();
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("v0", iter->value().ToString());
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Iter SeekToFirst CPU time nanos: "
|
|
<< get_perf_context()->iter_seek_cpu_nanos << "ns\n";
|
|
}
|
|
|
|
// Next
|
|
get_perf_context()->Reset();
|
|
iter->Next();
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("v1", iter->value().ToString());
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Iter Next CPU time nanos: "
|
|
<< get_perf_context()->iter_next_cpu_nanos << "ns\n";
|
|
}
|
|
|
|
// Prev
|
|
get_perf_context()->Reset();
|
|
iter->Prev();
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("v0", iter->value().ToString());
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << "Iter Prev CPU time nanos: "
|
|
<< get_perf_context()->iter_prev_cpu_nanos << "ns\n";
|
|
}
|
|
|
|
// monotonically increasing
|
|
get_perf_context()->Reset();
|
|
auto count = get_perf_context()->iter_seek_cpu_nanos;
|
|
for (int i = 0; i < FLAGS_total_keys; ++i) {
|
|
iter->Seek("k" + ToString(i));
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("v" + ToString(i), iter->value().ToString());
|
|
auto next_count = get_perf_context()->iter_seek_cpu_nanos;
|
|
ASSERT_GT(next_count, count);
|
|
count = next_count;
|
|
}
|
|
|
|
// iterator creation/destruction; multiple iterators
|
|
{
|
|
std::unique_ptr<Iterator> iter2(db->NewIterator(read_options));
|
|
ASSERT_EQ(count, get_perf_context()->iter_seek_cpu_nanos);
|
|
iter2->Seek(last_key);
|
|
ASSERT_TRUE(iter2->Valid());
|
|
ASSERT_EQ(last_value, iter2->value().ToString());
|
|
ASSERT_GT(get_perf_context()->iter_seek_cpu_nanos, count);
|
|
count = get_perf_context()->iter_seek_cpu_nanos;
|
|
}
|
|
ASSERT_EQ(count, get_perf_context()->iter_seek_cpu_nanos);
|
|
}
|
|
}
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
|
|
for (int i = 1; i < argc; i++) {
|
|
int n;
|
|
char junk;
|
|
|
|
if (sscanf(argv[i], "--write_buffer_size=%d%c", &n, &junk) == 1) {
|
|
FLAGS_write_buffer_size = n;
|
|
}
|
|
|
|
if (sscanf(argv[i], "--total_keys=%d%c", &n, &junk) == 1) {
|
|
FLAGS_total_keys = n;
|
|
}
|
|
|
|
if (sscanf(argv[i], "--random_key=%d%c", &n, &junk) == 1 &&
|
|
(n == 0 || n == 1)) {
|
|
FLAGS_random_key = n;
|
|
}
|
|
|
|
if (sscanf(argv[i], "--use_set_based_memetable=%d%c", &n, &junk) == 1 &&
|
|
(n == 0 || n == 1)) {
|
|
FLAGS_use_set_based_memetable = n;
|
|
}
|
|
|
|
if (sscanf(argv[i], "--verbose=%d%c", &n, &junk) == 1 &&
|
|
(n == 0 || n == 1)) {
|
|
FLAGS_verbose = n;
|
|
}
|
|
}
|
|
|
|
if (FLAGS_verbose) {
|
|
std::cout << kDbName << "\n";
|
|
}
|
|
|
|
return RUN_ALL_TESTS();
|
|
}
|