mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-27 11:43:49 +00:00
064294081b
Summary: Add new CheckFileExists method. Considered changing the FileExists api but didn't want to break anyone's builds. Test Plan: unit tests Reviewers: yhchiang, igor, sdong Reviewed By: sdong Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D42003
558 lines
19 KiB
C++
558 lines
19 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
|
|
#ifndef GFLAGS
|
|
#include <cstdio>
|
|
int main() {
|
|
fprintf(stderr, "Please install gflags to run this test\n");
|
|
return 1;
|
|
}
|
|
#else
|
|
|
|
#ifndef __STDC_FORMAT_MACROS
|
|
#define __STDC_FORMAT_MACROS
|
|
#endif
|
|
|
|
#include <inttypes.h>
|
|
#include <gflags/gflags.h>
|
|
#include <vector>
|
|
#include <string>
|
|
#include <map>
|
|
|
|
#include "table/meta_blocks.h"
|
|
#include "table/cuckoo_table_builder.h"
|
|
#include "table/cuckoo_table_reader.h"
|
|
#include "table/cuckoo_table_factory.h"
|
|
#include "table/get_context.h"
|
|
#include "util/arena.h"
|
|
#include "util/random.h"
|
|
#include "util/string_util.h"
|
|
#include "util/testharness.h"
|
|
#include "util/testutil.h"
|
|
|
|
using GFLAGS::ParseCommandLineFlags;
|
|
using GFLAGS::SetUsageMessage;
|
|
|
|
DEFINE_string(file_dir, "", "Directory where the files will be created"
|
|
" for benchmark. Added for using tmpfs.");
|
|
DEFINE_bool(enable_perf, false, "Run Benchmark Tests too.");
|
|
DEFINE_bool(write, false,
|
|
"Should write new values to file in performance tests?");
|
|
DEFINE_bool(identity_as_first_hash, true, "use identity as first hash");
|
|
|
|
namespace rocksdb {
|
|
|
|
namespace {
|
|
const uint32_t kNumHashFunc = 10;
|
|
// Methods, variables related to Hash functions.
|
|
std::unordered_map<std::string, std::vector<uint64_t>> hash_map;
|
|
|
|
void AddHashLookups(const std::string& s, uint64_t bucket_id,
|
|
uint32_t num_hash_fun) {
|
|
std::vector<uint64_t> v;
|
|
for (uint32_t i = 0; i < num_hash_fun; i++) {
|
|
v.push_back(bucket_id + i);
|
|
}
|
|
hash_map[s] = v;
|
|
}
|
|
|
|
uint64_t GetSliceHash(const Slice& s, uint32_t index,
|
|
uint64_t max_num_buckets) {
|
|
return hash_map[s.ToString()][index];
|
|
}
|
|
} // namespace
|
|
|
|
class CuckooReaderTest : public testing::Test {
|
|
public:
|
|
using testing::Test::SetUp;
|
|
|
|
CuckooReaderTest() {
|
|
options.allow_mmap_reads = true;
|
|
env = options.env;
|
|
env_options = EnvOptions(options);
|
|
}
|
|
|
|
void SetUp(int num) {
|
|
num_items = num;
|
|
hash_map.clear();
|
|
keys.clear();
|
|
keys.resize(num_items);
|
|
user_keys.clear();
|
|
user_keys.resize(num_items);
|
|
values.clear();
|
|
values.resize(num_items);
|
|
}
|
|
|
|
std::string NumToStr(int64_t i) {
|
|
return std::string(reinterpret_cast<char*>(&i), sizeof(i));
|
|
}
|
|
|
|
void CreateCuckooFileAndCheckReader(
|
|
const Comparator* ucomp = BytewiseComparator()) {
|
|
std::unique_ptr<WritableFile> writable_file;
|
|
ASSERT_OK(env->NewWritableFile(fname, &writable_file, env_options));
|
|
unique_ptr<WritableFileWriter> file_writer(
|
|
new WritableFileWriter(std::move(writable_file), env_options));
|
|
|
|
CuckooTableBuilder builder(file_writer.get(), 0.9, kNumHashFunc, 100, ucomp,
|
|
2, false, false, GetSliceHash);
|
|
ASSERT_OK(builder.status());
|
|
for (uint32_t key_idx = 0; key_idx < num_items; ++key_idx) {
|
|
builder.Add(Slice(keys[key_idx]), Slice(values[key_idx]));
|
|
ASSERT_OK(builder.status());
|
|
ASSERT_EQ(builder.NumEntries(), key_idx + 1);
|
|
}
|
|
ASSERT_OK(builder.Finish());
|
|
ASSERT_EQ(num_items, builder.NumEntries());
|
|
file_size = builder.FileSize();
|
|
ASSERT_OK(file_writer->Close());
|
|
|
|
// Check reader now.
|
|
std::unique_ptr<RandomAccessFile> read_file;
|
|
ASSERT_OK(env->NewRandomAccessFile(fname, &read_file, env_options));
|
|
unique_ptr<RandomAccessFileReader> file_reader(
|
|
new RandomAccessFileReader(std::move(read_file)));
|
|
const ImmutableCFOptions ioptions(options);
|
|
CuckooTableReader reader(ioptions, std::move(file_reader), file_size, ucomp,
|
|
GetSliceHash);
|
|
ASSERT_OK(reader.status());
|
|
// Assume no merge/deletion
|
|
for (uint32_t i = 0; i < num_items; ++i) {
|
|
std::string value;
|
|
GetContext get_context(ucomp, nullptr, nullptr, nullptr,
|
|
GetContext::kNotFound, Slice(user_keys[i]), &value,
|
|
nullptr, nullptr, nullptr);
|
|
ASSERT_OK(reader.Get(ReadOptions(), Slice(keys[i]), &get_context));
|
|
ASSERT_EQ(values[i], value);
|
|
}
|
|
}
|
|
void UpdateKeys(bool with_zero_seqno) {
|
|
for (uint32_t i = 0; i < num_items; i++) {
|
|
ParsedInternalKey ikey(user_keys[i],
|
|
with_zero_seqno ? 0 : i + 1000, kTypeValue);
|
|
keys[i].clear();
|
|
AppendInternalKey(&keys[i], ikey);
|
|
}
|
|
}
|
|
|
|
void CheckIterator(const Comparator* ucomp = BytewiseComparator()) {
|
|
std::unique_ptr<RandomAccessFile> read_file;
|
|
ASSERT_OK(env->NewRandomAccessFile(fname, &read_file, env_options));
|
|
unique_ptr<RandomAccessFileReader> file_reader(
|
|
new RandomAccessFileReader(std::move(read_file)));
|
|
const ImmutableCFOptions ioptions(options);
|
|
CuckooTableReader reader(ioptions, std::move(file_reader), file_size, ucomp,
|
|
GetSliceHash);
|
|
ASSERT_OK(reader.status());
|
|
Iterator* it = reader.NewIterator(ReadOptions(), nullptr);
|
|
ASSERT_OK(it->status());
|
|
ASSERT_TRUE(!it->Valid());
|
|
it->SeekToFirst();
|
|
int cnt = 0;
|
|
while (it->Valid()) {
|
|
ASSERT_OK(it->status());
|
|
ASSERT_TRUE(Slice(keys[cnt]) == it->key());
|
|
ASSERT_TRUE(Slice(values[cnt]) == it->value());
|
|
++cnt;
|
|
it->Next();
|
|
}
|
|
ASSERT_EQ(static_cast<uint32_t>(cnt), num_items);
|
|
|
|
it->SeekToLast();
|
|
cnt = static_cast<int>(num_items) - 1;
|
|
ASSERT_TRUE(it->Valid());
|
|
while (it->Valid()) {
|
|
ASSERT_OK(it->status());
|
|
ASSERT_TRUE(Slice(keys[cnt]) == it->key());
|
|
ASSERT_TRUE(Slice(values[cnt]) == it->value());
|
|
--cnt;
|
|
it->Prev();
|
|
}
|
|
ASSERT_EQ(cnt, -1);
|
|
|
|
cnt = static_cast<int>(num_items) / 2;
|
|
it->Seek(keys[cnt]);
|
|
while (it->Valid()) {
|
|
ASSERT_OK(it->status());
|
|
ASSERT_TRUE(Slice(keys[cnt]) == it->key());
|
|
ASSERT_TRUE(Slice(values[cnt]) == it->value());
|
|
++cnt;
|
|
it->Next();
|
|
}
|
|
ASSERT_EQ(static_cast<uint32_t>(cnt), num_items);
|
|
delete it;
|
|
|
|
Arena arena;
|
|
it = reader.NewIterator(ReadOptions(), &arena);
|
|
ASSERT_OK(it->status());
|
|
ASSERT_TRUE(!it->Valid());
|
|
it->Seek(keys[num_items/2]);
|
|
ASSERT_TRUE(it->Valid());
|
|
ASSERT_OK(it->status());
|
|
ASSERT_TRUE(keys[num_items/2] == it->key());
|
|
ASSERT_TRUE(values[num_items/2] == it->value());
|
|
ASSERT_OK(it->status());
|
|
it->~Iterator();
|
|
}
|
|
|
|
std::vector<std::string> keys;
|
|
std::vector<std::string> user_keys;
|
|
std::vector<std::string> values;
|
|
uint64_t num_items;
|
|
std::string fname;
|
|
uint64_t file_size;
|
|
Options options;
|
|
Env* env;
|
|
EnvOptions env_options;
|
|
};
|
|
|
|
TEST_F(CuckooReaderTest, WhenKeyExists) {
|
|
SetUp(kNumHashFunc);
|
|
fname = test::TmpDir() + "/CuckooReader_WhenKeyExists";
|
|
for (uint64_t i = 0; i < num_items; i++) {
|
|
user_keys[i] = "key" + NumToStr(i);
|
|
ParsedInternalKey ikey(user_keys[i], i + 1000, kTypeValue);
|
|
AppendInternalKey(&keys[i], ikey);
|
|
values[i] = "value" + NumToStr(i);
|
|
// Give disjoint hash values.
|
|
AddHashLookups(user_keys[i], i, kNumHashFunc);
|
|
}
|
|
CreateCuckooFileAndCheckReader();
|
|
// Last level file.
|
|
UpdateKeys(true);
|
|
CreateCuckooFileAndCheckReader();
|
|
// Test with collision. Make all hash values collide.
|
|
hash_map.clear();
|
|
for (uint32_t i = 0; i < num_items; i++) {
|
|
AddHashLookups(user_keys[i], 0, kNumHashFunc);
|
|
}
|
|
UpdateKeys(false);
|
|
CreateCuckooFileAndCheckReader();
|
|
// Last level file.
|
|
UpdateKeys(true);
|
|
CreateCuckooFileAndCheckReader();
|
|
}
|
|
|
|
TEST_F(CuckooReaderTest, WhenKeyExistsWithUint64Comparator) {
|
|
SetUp(kNumHashFunc);
|
|
fname = test::TmpDir() + "/CuckooReaderUint64_WhenKeyExists";
|
|
for (uint64_t i = 0; i < num_items; i++) {
|
|
user_keys[i].resize(8);
|
|
memcpy(&user_keys[i][0], static_cast<void*>(&i), 8);
|
|
ParsedInternalKey ikey(user_keys[i], i + 1000, kTypeValue);
|
|
AppendInternalKey(&keys[i], ikey);
|
|
values[i] = "value" + NumToStr(i);
|
|
// Give disjoint hash values.
|
|
AddHashLookups(user_keys[i], i, kNumHashFunc);
|
|
}
|
|
CreateCuckooFileAndCheckReader(test::Uint64Comparator());
|
|
// Last level file.
|
|
UpdateKeys(true);
|
|
CreateCuckooFileAndCheckReader(test::Uint64Comparator());
|
|
// Test with collision. Make all hash values collide.
|
|
hash_map.clear();
|
|
for (uint32_t i = 0; i < num_items; i++) {
|
|
AddHashLookups(user_keys[i], 0, kNumHashFunc);
|
|
}
|
|
UpdateKeys(false);
|
|
CreateCuckooFileAndCheckReader(test::Uint64Comparator());
|
|
// Last level file.
|
|
UpdateKeys(true);
|
|
CreateCuckooFileAndCheckReader(test::Uint64Comparator());
|
|
}
|
|
|
|
TEST_F(CuckooReaderTest, CheckIterator) {
|
|
SetUp(2*kNumHashFunc);
|
|
fname = test::TmpDir() + "/CuckooReader_CheckIterator";
|
|
for (uint64_t i = 0; i < num_items; i++) {
|
|
user_keys[i] = "key" + NumToStr(i);
|
|
ParsedInternalKey ikey(user_keys[i], 1000, kTypeValue);
|
|
AppendInternalKey(&keys[i], ikey);
|
|
values[i] = "value" + NumToStr(i);
|
|
// Give disjoint hash values, in reverse order.
|
|
AddHashLookups(user_keys[i], num_items-i-1, kNumHashFunc);
|
|
}
|
|
CreateCuckooFileAndCheckReader();
|
|
CheckIterator();
|
|
// Last level file.
|
|
UpdateKeys(true);
|
|
CreateCuckooFileAndCheckReader();
|
|
CheckIterator();
|
|
}
|
|
|
|
TEST_F(CuckooReaderTest, CheckIteratorUint64) {
|
|
SetUp(2*kNumHashFunc);
|
|
fname = test::TmpDir() + "/CuckooReader_CheckIterator";
|
|
for (uint64_t i = 0; i < num_items; i++) {
|
|
user_keys[i].resize(8);
|
|
memcpy(&user_keys[i][0], static_cast<void*>(&i), 8);
|
|
ParsedInternalKey ikey(user_keys[i], 1000, kTypeValue);
|
|
AppendInternalKey(&keys[i], ikey);
|
|
values[i] = "value" + NumToStr(i);
|
|
// Give disjoint hash values, in reverse order.
|
|
AddHashLookups(user_keys[i], num_items-i-1, kNumHashFunc);
|
|
}
|
|
CreateCuckooFileAndCheckReader(test::Uint64Comparator());
|
|
CheckIterator(test::Uint64Comparator());
|
|
// Last level file.
|
|
UpdateKeys(true);
|
|
CreateCuckooFileAndCheckReader(test::Uint64Comparator());
|
|
CheckIterator(test::Uint64Comparator());
|
|
}
|
|
|
|
TEST_F(CuckooReaderTest, WhenKeyNotFound) {
|
|
// Add keys with colliding hash values.
|
|
SetUp(kNumHashFunc);
|
|
fname = test::TmpDir() + "/CuckooReader_WhenKeyNotFound";
|
|
for (uint64_t i = 0; i < num_items; i++) {
|
|
user_keys[i] = "key" + NumToStr(i);
|
|
ParsedInternalKey ikey(user_keys[i], i + 1000, kTypeValue);
|
|
AppendInternalKey(&keys[i], ikey);
|
|
values[i] = "value" + NumToStr(i);
|
|
// Make all hash values collide.
|
|
AddHashLookups(user_keys[i], 0, kNumHashFunc);
|
|
}
|
|
auto* ucmp = BytewiseComparator();
|
|
CreateCuckooFileAndCheckReader();
|
|
std::unique_ptr<RandomAccessFile> read_file;
|
|
ASSERT_OK(env->NewRandomAccessFile(fname, &read_file, env_options));
|
|
unique_ptr<RandomAccessFileReader> file_reader(
|
|
new RandomAccessFileReader(std::move(read_file)));
|
|
const ImmutableCFOptions ioptions(options);
|
|
CuckooTableReader reader(ioptions, std::move(file_reader), file_size, ucmp,
|
|
GetSliceHash);
|
|
ASSERT_OK(reader.status());
|
|
// Search for a key with colliding hash values.
|
|
std::string not_found_user_key = "key" + NumToStr(num_items);
|
|
std::string not_found_key;
|
|
AddHashLookups(not_found_user_key, 0, kNumHashFunc);
|
|
ParsedInternalKey ikey(not_found_user_key, 1000, kTypeValue);
|
|
AppendInternalKey(¬_found_key, ikey);
|
|
std::string value;
|
|
GetContext get_context(ucmp, nullptr, nullptr, nullptr, GetContext::kNotFound,
|
|
Slice(not_found_key), &value, nullptr, nullptr,
|
|
nullptr);
|
|
ASSERT_OK(reader.Get(ReadOptions(), Slice(not_found_key), &get_context));
|
|
ASSERT_TRUE(value.empty());
|
|
ASSERT_OK(reader.status());
|
|
// Search for a key with an independent hash value.
|
|
std::string not_found_user_key2 = "key" + NumToStr(num_items + 1);
|
|
AddHashLookups(not_found_user_key2, kNumHashFunc, kNumHashFunc);
|
|
ParsedInternalKey ikey2(not_found_user_key2, 1000, kTypeValue);
|
|
std::string not_found_key2;
|
|
AppendInternalKey(¬_found_key2, ikey2);
|
|
GetContext get_context2(ucmp, nullptr, nullptr, nullptr,
|
|
GetContext::kNotFound, Slice(not_found_key2), &value,
|
|
nullptr, nullptr, nullptr);
|
|
ASSERT_OK(reader.Get(ReadOptions(), Slice(not_found_key2), &get_context2));
|
|
ASSERT_TRUE(value.empty());
|
|
ASSERT_OK(reader.status());
|
|
|
|
// Test read when key is unused key.
|
|
std::string unused_key =
|
|
reader.GetTableProperties()->user_collected_properties.at(
|
|
CuckooTablePropertyNames::kEmptyKey);
|
|
// Add hash values that map to empty buckets.
|
|
AddHashLookups(ExtractUserKey(unused_key).ToString(),
|
|
kNumHashFunc, kNumHashFunc);
|
|
GetContext get_context3(ucmp, nullptr, nullptr, nullptr,
|
|
GetContext::kNotFound, Slice(unused_key), &value,
|
|
nullptr, nullptr, nullptr);
|
|
ASSERT_OK(reader.Get(ReadOptions(), Slice(unused_key), &get_context3));
|
|
ASSERT_TRUE(value.empty());
|
|
ASSERT_OK(reader.status());
|
|
}
|
|
|
|
// Performance tests
|
|
namespace {
|
|
void GetKeys(uint64_t num, std::vector<std::string>* keys) {
|
|
keys->clear();
|
|
IterKey k;
|
|
k.SetInternalKey("", 0, kTypeValue);
|
|
std::string internal_key_suffix = k.GetKey().ToString();
|
|
ASSERT_EQ(static_cast<size_t>(8), internal_key_suffix.size());
|
|
for (uint64_t key_idx = 0; key_idx < num; ++key_idx) {
|
|
uint64_t value = 2 * key_idx;
|
|
std::string new_key(reinterpret_cast<char*>(&value), sizeof(value));
|
|
new_key += internal_key_suffix;
|
|
keys->push_back(new_key);
|
|
}
|
|
}
|
|
|
|
std::string GetFileName(uint64_t num) {
|
|
if (FLAGS_file_dir.empty()) {
|
|
FLAGS_file_dir = test::TmpDir();
|
|
}
|
|
return FLAGS_file_dir + "/cuckoo_read_benchmark" +
|
|
ToString(num/1000000) + "Mkeys";
|
|
}
|
|
|
|
// Create last level file as we are interested in measuring performance of
|
|
// last level file only.
|
|
void WriteFile(const std::vector<std::string>& keys,
|
|
const uint64_t num, double hash_ratio) {
|
|
Options options;
|
|
options.allow_mmap_reads = true;
|
|
Env* env = options.env;
|
|
EnvOptions env_options = EnvOptions(options);
|
|
std::string fname = GetFileName(num);
|
|
|
|
std::unique_ptr<WritableFile> writable_file;
|
|
ASSERT_OK(env->NewWritableFile(fname, &writable_file, env_options));
|
|
unique_ptr<WritableFileWriter> file_writer(
|
|
new WritableFileWriter(std::move(writable_file), env_options));
|
|
CuckooTableBuilder builder(file_writer.get(), hash_ratio, 64, 1000,
|
|
test::Uint64Comparator(), 5, false,
|
|
FLAGS_identity_as_first_hash, nullptr);
|
|
ASSERT_OK(builder.status());
|
|
for (uint64_t key_idx = 0; key_idx < num; ++key_idx) {
|
|
// Value is just a part of key.
|
|
builder.Add(Slice(keys[key_idx]), Slice(&keys[key_idx][0], 4));
|
|
ASSERT_EQ(builder.NumEntries(), key_idx + 1);
|
|
ASSERT_OK(builder.status());
|
|
}
|
|
ASSERT_OK(builder.Finish());
|
|
ASSERT_EQ(num, builder.NumEntries());
|
|
ASSERT_OK(file_writer->Close());
|
|
|
|
uint64_t file_size;
|
|
env->GetFileSize(fname, &file_size);
|
|
std::unique_ptr<RandomAccessFile> read_file;
|
|
ASSERT_OK(env->NewRandomAccessFile(fname, &read_file, env_options));
|
|
unique_ptr<RandomAccessFileReader> file_reader(
|
|
new RandomAccessFileReader(std::move(read_file)));
|
|
|
|
const ImmutableCFOptions ioptions(options);
|
|
CuckooTableReader reader(ioptions, std::move(file_reader), file_size,
|
|
test::Uint64Comparator(), nullptr);
|
|
ASSERT_OK(reader.status());
|
|
ReadOptions r_options;
|
|
std::string value;
|
|
// Assume only the fast path is triggered
|
|
GetContext get_context(nullptr, nullptr, nullptr, nullptr,
|
|
GetContext::kNotFound, Slice(), &value, nullptr,
|
|
nullptr, nullptr);
|
|
for (uint64_t i = 0; i < num; ++i) {
|
|
value.clear();
|
|
ASSERT_OK(reader.Get(r_options, Slice(keys[i]), &get_context));
|
|
ASSERT_TRUE(Slice(keys[i]) == Slice(&keys[i][0], 4));
|
|
}
|
|
}
|
|
|
|
void ReadKeys(uint64_t num, uint32_t batch_size) {
|
|
Options options;
|
|
options.allow_mmap_reads = true;
|
|
Env* env = options.env;
|
|
EnvOptions env_options = EnvOptions(options);
|
|
std::string fname = GetFileName(num);
|
|
|
|
uint64_t file_size;
|
|
env->GetFileSize(fname, &file_size);
|
|
std::unique_ptr<RandomAccessFile> read_file;
|
|
ASSERT_OK(env->NewRandomAccessFile(fname, &read_file, env_options));
|
|
unique_ptr<RandomAccessFileReader> file_reader(
|
|
new RandomAccessFileReader(std::move(read_file)));
|
|
|
|
const ImmutableCFOptions ioptions(options);
|
|
CuckooTableReader reader(ioptions, std::move(file_reader), file_size,
|
|
test::Uint64Comparator(), nullptr);
|
|
ASSERT_OK(reader.status());
|
|
const UserCollectedProperties user_props =
|
|
reader.GetTableProperties()->user_collected_properties;
|
|
const uint32_t num_hash_fun = *reinterpret_cast<const uint32_t*>(
|
|
user_props.at(CuckooTablePropertyNames::kNumHashFunc).data());
|
|
const uint64_t table_size = *reinterpret_cast<const uint64_t*>(
|
|
user_props.at(CuckooTablePropertyNames::kHashTableSize).data());
|
|
fprintf(stderr, "With %" PRIu64 " items, utilization is %.2f%%, number of"
|
|
" hash functions: %u.\n", num, num * 100.0 / (table_size), num_hash_fun);
|
|
ReadOptions r_options;
|
|
|
|
std::vector<uint64_t> keys;
|
|
keys.reserve(num);
|
|
for (uint64_t i = 0; i < num; ++i) {
|
|
keys.push_back(2 * i);
|
|
}
|
|
std::random_shuffle(keys.begin(), keys.end());
|
|
|
|
std::string value;
|
|
// Assume only the fast path is triggered
|
|
GetContext get_context(nullptr, nullptr, nullptr, nullptr,
|
|
GetContext::kNotFound, Slice(), &value, nullptr,
|
|
nullptr, nullptr);
|
|
uint64_t start_time = env->NowMicros();
|
|
if (batch_size > 0) {
|
|
for (uint64_t i = 0; i < num; i += batch_size) {
|
|
for (uint64_t j = i; j < i+batch_size && j < num; ++j) {
|
|
reader.Prepare(Slice(reinterpret_cast<char*>(&keys[j]), 16));
|
|
}
|
|
for (uint64_t j = i; j < i+batch_size && j < num; ++j) {
|
|
reader.Get(r_options, Slice(reinterpret_cast<char*>(&keys[j]), 16),
|
|
&get_context);
|
|
}
|
|
}
|
|
} else {
|
|
for (uint64_t i = 0; i < num; i++) {
|
|
reader.Get(r_options, Slice(reinterpret_cast<char*>(&keys[i]), 16),
|
|
&get_context);
|
|
}
|
|
}
|
|
float time_per_op = (env->NowMicros() - start_time) * 1.0 / num;
|
|
fprintf(stderr,
|
|
"Time taken per op is %.3fus (%.1f Mqps) with batch size of %u\n",
|
|
time_per_op, 1.0 / time_per_op, batch_size);
|
|
}
|
|
} // namespace.
|
|
|
|
TEST_F(CuckooReaderTest, TestReadPerformance) {
|
|
if (!FLAGS_enable_perf) {
|
|
return;
|
|
}
|
|
double hash_ratio = 0.95;
|
|
// These numbers are chosen to have a hash utilizaiton % close to
|
|
// 0.9, 0.75, 0.6 and 0.5 respectively.
|
|
// They all create 128 M buckets.
|
|
std::vector<uint64_t> nums = {120*1024*1024, 100*1024*1024, 80*1024*1024,
|
|
70*1024*1024};
|
|
#ifndef NDEBUG
|
|
fprintf(stdout,
|
|
"WARNING: Not compiled with DNDEBUG. Performance tests may be slow.\n");
|
|
#endif
|
|
for (uint64_t num : nums) {
|
|
if (FLAGS_write ||
|
|
Env::Default()->FileExists(GetFileName(num)).IsNotFound()) {
|
|
std::vector<std::string> all_keys;
|
|
GetKeys(num, &all_keys);
|
|
WriteFile(all_keys, num, hash_ratio);
|
|
}
|
|
ReadKeys(num, 0);
|
|
ReadKeys(num, 10);
|
|
ReadKeys(num, 25);
|
|
ReadKeys(num, 50);
|
|
ReadKeys(num, 100);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
}
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
ParseCommandLineFlags(&argc, &argv, true);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|
|
#endif // GFLAGS.
|
|
|
|
#else
|
|
#include <stdio.h>
|
|
|
|
int main(int argc, char** argv) {
|
|
fprintf(stderr, "SKIPPED as Cuckoo table is not supported in ROCKSDB_LITE\n");
|
|
return 0;
|
|
}
|
|
|
|
#endif // ROCKSDB_LITE
|