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rocksdb/tools/trace_analyzer_test.cc
sdong fdf882ded2 Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 
Summary:
When dynamically linking two binaries together, different builds of RocksDB from two sources might cause errors. To provide a tool for user to solve the problem, the RocksDB namespace is changed to a flag which can be overridden in build time.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6433

Test Plan: Build release, all and jtest. Try to build with ROCKSDB_NAMESPACE with another flag.

Differential Revision: D19977691

fbshipit-source-id: aa7f2d0972e1c31d75339ac48478f34f6cfcfb3e
2020-02-20 12:09:57 -08:00

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28 KiB
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#ifndef ROCKSDB_LITE
#ifndef GFLAGS
#include <cstdio>
int main() {
fprintf(stderr, "Please install gflags to run trace_analyzer test\n");
return 1;
}
#else
#include <chrono>
#include <cstdio>
#include <cstdlib>
#include <sstream>
#include <thread>
#include "db/db_test_util.h"
#include "file/read_write_util.h"
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/status.h"
#include "rocksdb/trace_reader_writer.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "tools/trace_analyzer_tool.h"
#include "trace_replay/trace_replay.h"
namespace ROCKSDB_NAMESPACE {
namespace {
static const int kMaxArgCount = 100;
static const size_t kArgBufferSize = 100000;
} // namespace
// The helper functions for the test
class TraceAnalyzerTest : public testing::Test {
public:
TraceAnalyzerTest() : rnd_(0xFB) {
// test_path_ = test::TmpDir() + "trace_analyzer_test";
test_path_ = test::PerThreadDBPath("trace_analyzer_test");
env_ = ROCKSDB_NAMESPACE::Env::Default();
env_->CreateDir(test_path_);
dbname_ = test_path_ + "/db";
}
~TraceAnalyzerTest() override {}
void GenerateTrace(std::string trace_path) {
Options options;
options.create_if_missing = true;
options.merge_operator = MergeOperators::CreatePutOperator();
ReadOptions ro;
WriteOptions wo;
TraceOptions trace_opt;
DB* db_ = nullptr;
std::string value;
std::unique_ptr<TraceWriter> trace_writer;
Iterator* single_iter = nullptr;
ASSERT_OK(
NewFileTraceWriter(env_, env_options_, trace_path, &trace_writer));
ASSERT_OK(DB::Open(options, dbname_, &db_));
ASSERT_OK(db_->StartTrace(trace_opt, std::move(trace_writer)));
WriteBatch batch;
ASSERT_OK(batch.Put("a", "aaaaaaaaa"));
ASSERT_OK(batch.Merge("b", "aaaaaaaaaaaaaaaaaaaa"));
ASSERT_OK(batch.Delete("c"));
ASSERT_OK(batch.SingleDelete("d"));
ASSERT_OK(batch.DeleteRange("e", "f"));
ASSERT_OK(db_->Write(wo, &batch));
ASSERT_OK(db_->Get(ro, "a", &value));
single_iter = db_->NewIterator(ro);
single_iter->Seek("a");
single_iter->SeekForPrev("b");
delete single_iter;
std::this_thread::sleep_for (std::chrono::seconds(1));
db_->Get(ro, "g", &value);
ASSERT_OK(db_->EndTrace());
ASSERT_OK(env_->FileExists(trace_path));
std::unique_ptr<WritableFile> whole_f;
std::string whole_path = test_path_ + "/0.txt";
ASSERT_OK(env_->NewWritableFile(whole_path, &whole_f, env_options_));
std::string whole_str = "0x61\n0x62\n0x63\n0x64\n0x65\n0x66\n";
ASSERT_OK(whole_f->Append(whole_str));
delete db_;
ASSERT_OK(DestroyDB(dbname_, options));
}
void RunTraceAnalyzer(const std::vector<std::string>& args) {
char arg_buffer[kArgBufferSize];
char* argv[kMaxArgCount];
int argc = 0;
int cursor = 0;
for (const auto& arg : args) {
ASSERT_LE(cursor + arg.size() + 1, kArgBufferSize);
ASSERT_LE(argc + 1, kMaxArgCount);
snprintf(arg_buffer + cursor, arg.size() + 1, "%s", arg.c_str());
argv[argc++] = arg_buffer + cursor;
cursor += static_cast<int>(arg.size()) + 1;
}
ASSERT_EQ(0, ROCKSDB_NAMESPACE::trace_analyzer_tool(argc, argv));
}
void CheckFileContent(const std::vector<std::string>& cnt,
std::string file_path, bool full_content) {
ASSERT_OK(env_->FileExists(file_path));
std::unique_ptr<SequentialFile> f_ptr;
ASSERT_OK(env_->NewSequentialFile(file_path, &f_ptr, env_options_));
std::string get_line;
std::istringstream iss;
bool has_data = true;
std::vector<std::string> result;
uint32_t count;
Status s;
std::unique_ptr<FSSequentialFile> file =
NewLegacySequentialFileWrapper(f_ptr);
SequentialFileReader sf_reader(std::move(file), file_path,
4096 /* filereadahead_size */);
for (count = 0; ReadOneLine(&iss, &sf_reader, &get_line, &has_data, &s);
++count) {
ASSERT_OK(s);
result.push_back(get_line);
}
ASSERT_EQ(cnt.size(), result.size());
for (int i = 0; i < static_cast<int>(result.size()); i++) {
if (full_content) {
ASSERT_EQ(result[i], cnt[i]);
} else {
ASSERT_EQ(result[i][0], cnt[i][0]);
}
}
return;
}
void AnalyzeTrace(std::vector<std::string>& paras_diff,
std::string output_path, std::string trace_path) {
std::vector<std::string> paras = {"./trace_analyzer",
"-convert_to_human_readable_trace",
"-output_key_stats",
"-output_access_count_stats",
"-output_prefix=test",
"-output_prefix_cut=1",
"-output_time_series",
"-output_value_distribution",
"-output_qps_stats",
"-no_key",
"-no_print"};
for (auto& para : paras_diff) {
paras.push_back(para);
}
Status s = env_->FileExists(trace_path);
if (!s.ok()) {
GenerateTrace(trace_path);
}
env_->CreateDir(output_path);
RunTraceAnalyzer(paras);
}
ROCKSDB_NAMESPACE::Env* env_;
EnvOptions env_options_;
std::string test_path_;
std::string dbname_;
Random rnd_;
};
TEST_F(TraceAnalyzerTest, Get) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/get";
std::string file_path;
std::vector<std::string> paras = {"-analyze_get"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 10 0 1 1.000000", "0 10 1 1 1.000000"};
file_path = output_path + "/test-get-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 2"};
file_path = output_path + "/test-get-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30",
"1 1 1 1.000000 1.000000 0x61"};
file_path = output_path + "/test-get-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"0 1533000630 0", "0 1533000630 1"};
file_path = output_path + "/test-get-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"0 1"};
file_path = output_path + "/test-get-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-get-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 0 0 0 0 0 0 0 1"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of get
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-get-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x61 Access count: 1"};
file_path = output_path + "/test-get-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
// Test analyzing of Put
TEST_F(TraceAnalyzerTest, Put) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/put";
std::string file_path;
std::vector<std::string> paras = {"-analyze_put"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 9 0 1 1.000000"};
file_path = output_path + "/test-put-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path = output_path + "/test-put-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-put-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"1 1533056278 0"};
file_path = output_path + "/test-put-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"0 1"};
file_path = output_path + "/test-put-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-put-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 0 0 0 0 0 0 2"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of Put
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-put-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x61 Access count: 1"};
file_path = output_path + "/test-put-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
// Check the value size distribution
std::vector<std::string> value_dist = {
"Number_of_value_size_between 0 and 16 is: 1"};
file_path = output_path + "/test-put-0-accessed_value_size_distribution.txt";
CheckFileContent(value_dist, file_path, true);
}
// Test analyzing of delete
TEST_F(TraceAnalyzerTest, Delete) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/delete";
std::string file_path;
std::vector<std::string> paras = {"-analyze_delete"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 0 0 1 1.000000"};
file_path = output_path + "/test-delete-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path =
output_path + "/test-delete-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-delete-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"2 1533000630 0"};
file_path = output_path + "/test-delete-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"2 1"};
file_path = output_path + "/test-delete-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-delete-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 0 0 0 0 0 3"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of Delete
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-delete-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x63 Access count: 1"};
file_path = output_path + "/test-delete-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
// Test analyzing of Merge
TEST_F(TraceAnalyzerTest, Merge) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/merge";
std::string file_path;
std::vector<std::string> paras = {"-analyze_merge"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 20 0 1 1.000000"};
file_path = output_path + "/test-merge-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path = output_path + "/test-merge-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-merge-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"5 1533000630 0"};
file_path = output_path + "/test-merge-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"1 1"};
file_path = output_path + "/test-merge-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-merge-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 0 0 1 0 0 4"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of Merge
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-merge-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x62 Access count: 1"};
file_path = output_path + "/test-merge-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
// Check the value size distribution
std::vector<std::string> value_dist = {
"Number_of_value_size_between 0 and 24 is: 1"};
file_path =
output_path + "/test-merge-0-accessed_value_size_distribution.txt";
CheckFileContent(value_dist, file_path, true);
}
// Test analyzing of SingleDelete
TEST_F(TraceAnalyzerTest, SingleDelete) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/single_delete";
std::string file_path;
std::vector<std::string> paras = {"-analyze_single_delete"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 0 0 1 1.000000"};
file_path = output_path + "/test-single_delete-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path =
output_path + "/test-single_delete-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-single_delete-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"3 1533000630 0"};
file_path = output_path + "/test-single_delete-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"3 1"};
file_path = output_path + "/test-single_delete-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-single_delete-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 1 0 1 0 0 5"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of SingleDelete
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-single_delete-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x64 Access count: 1"};
file_path =
output_path + "/test-single_delete-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
// Test analyzing of delete
TEST_F(TraceAnalyzerTest, DeleteRange) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/range_delete";
std::string file_path;
std::vector<std::string> paras = {"-analyze_range_delete"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 0 0 1 1.000000", "0 0 1 1 1.000000"};
file_path = output_path + "/test-range_delete-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 2"};
file_path =
output_path + "/test-range_delete-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30",
"1 1 1 1.000000 1.000000 0x65"};
file_path = output_path + "/test-range_delete-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"4 1533000630 0", "4 1533060100 1"};
file_path = output_path + "/test-range_delete-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"4 1", "5 1"};
file_path = output_path + "/test-range_delete-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-range_delete-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 1 2 1 0 0 7"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of DeleteRange
std::vector<std::string> get_qps = {"2"};
file_path = output_path + "/test-range_delete-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 2",
"The prefix: 0x65 Access count: 1",
"The prefix: 0x66 Access count: 1"};
file_path =
output_path + "/test-range_delete-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
// Test analyzing of Iterator
TEST_F(TraceAnalyzerTest, Iterator) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/iterator";
std::string file_path;
std::vector<std::string> paras = {"-analyze_iterator"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// Check the output of Seek
// check the key_stats file
std::vector<std::string> k_stats = {"0 0 0 1 1.000000"};
file_path = output_path + "/test-iterator_Seek-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path =
output_path + "/test-iterator_Seek-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-iterator_Seek-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"6 1 0"};
file_path = output_path + "/test-iterator_Seek-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"0 1"};
file_path = output_path + "/test-iterator_Seek-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-iterator_Seek-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 1 2 1 1 1 9"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of Iterator_Seek
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-iterator_Seek-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x61 Access count: 1"};
file_path =
output_path + "/test-iterator_Seek-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
// Check the output of SeekForPrev
// check the key_stats file
k_stats = {"0 0 0 1 1.000000"};
file_path =
output_path + "/test-iterator_SeekForPrev-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
k_dist = {"access_count: 1 num: 1"};
file_path =
output_path +
"/test-iterator_SeekForPrev-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the prefix
k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path =
output_path + "/test-iterator_SeekForPrev-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
k_series = {"7 0 0"};
file_path = output_path + "/test-iterator_SeekForPrev-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
k_whole_access = {"1 1"};
file_path = output_path + "/test-iterator_SeekForPrev-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63", "3 0x64", "4 0x65", "5 0x66"};
file_path =
output_path + "/test-iterator_SeekForPrev-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the qps of Iterator_SeekForPrev
get_qps = {"1"};
file_path = output_path + "/test-iterator_SeekForPrev-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
top_qps = {"At time: 0 with QPS: 1", "The prefix: 0x62 Access count: 1"};
file_path = output_path +
"/test-iterator_SeekForPrev-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
#endif // GFLAG
#else
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr, "Trace_analyzer test is not supported in ROCKSDB_LITE\n");
return 0;
}
#endif // !ROCKSDB_LITE return RUN_ALL_TESTS();
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