You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
rocksdb/test_util/sync_point.cc

93 lines
2.5 KiB

// 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).
#include "test_util/sync_point.h"
#include <fcntl.h>
#include "test_util/sync_point_impl.h"
std::vector<std::string> rocksdb_kill_exclude_prefixes;
#ifndef NDEBUG
namespace ROCKSDB_NAMESPACE {
SyncPoint* SyncPoint::GetInstance() {
static SyncPoint sync_point;
return &sync_point;
}
SyncPoint::SyncPoint() : impl_(new Data) {}
SyncPoint:: ~SyncPoint() {
delete impl_;
}
void SyncPoint::LoadDependency(const std::vector<SyncPointPair>& dependencies) {
impl_->LoadDependency(dependencies);
}
void SyncPoint::LoadDependencyAndMarkers(
const std::vector<SyncPointPair>& dependencies,
const std::vector<SyncPointPair>& markers) {
impl_->LoadDependencyAndMarkers(dependencies, markers);
}
void SyncPoint::SetCallBack(const std::string& point,
const std::function<void(void*)>& callback) {
impl_->SetCallBack(point, callback);
}
void SyncPoint::ClearCallBack(const std::string& point) {
impl_->ClearCallBack(point);
}
void SyncPoint::ClearAllCallBacks() {
impl_->ClearAllCallBacks();
}
void SyncPoint::EnableProcessing() {
impl_->EnableProcessing();
}
void SyncPoint::DisableProcessing() {
impl_->DisableProcessing();
}
void SyncPoint::ClearTrace() {
impl_->ClearTrace();
}
SyncPoint::Process thrashes heap ... fix it (#9023) Summary: The first parameter of SyncPoint::Process is "const std::string&". The majority, maybe all, of the actual calls to this function use a "const char *". The conversion before entering the function requires a construction of a std::string object on the heap. This std::object is then typically not needed because first use of the string is a rocksdb::Slice which has a less costly conversion of char * to slice. Example: We have a load and iterate test. The test loads 10m keys and iterates most via 10 rocksdb::Iterator objects. We used TCMALLOC to gather information about allocation and space usage during iterators. - Before this PR: test took 32 min 17 sec - After this PR: test took 1 min 14 sec The TCMALLOC top object list before this PR: <pre> Total: 5105999 objects 5003717 98.0% 98.0% 5009471 98.1% rocksdb::DBIter::MergeValuesNewToOld (inline) 20260 0.4% 98.4% 20260 0.4% std::__cxx11::basic_string::_M_mutate 15214 0.3% 98.7% 15214 0.3% rocksdb::UncompressBlockContentsForCompressionType (inline) 13408 0.3% 99.0% 13408 0.3% std::_Rb_tree::_M_emplace_hint_unique [clone .constprop.416] (inline) 12957 0.3% 99.2% 12957 0.3% std::_Rb_tree::_M_emplace_hint_unique [clone .constprop.405] (inline) 9327 0.2% 99.4% 9327 0.2% std::_Rb_tree::_M_copy (inline) 7691 0.2% 99.5% 9919 0.2% JVM_FindSignal 2859 0.1% 99.6% 2859 0.1% rocksdb::Cleanable::RegisterCleanup 2844 0.1% 99.7% 2844 0.1% std::map::operator[] (inline) </pre> The "MergeValuesNewToOld (inline)" objects are the #define wrappers to SyncPoint::Process. We discovered this in a 5.18 rocksdb release. There TCMALLOC was more specific that std::basic_string was being constructed. I believe that was before SyncPoint::Process was declared inline in subsequent releases. The TCMALLOC top object list after this PR: <pre> Total: 104911 objects 45090 43.0% 43.0% 45090 43.0% rocksdb::Cleanable::RegisterCleanup 29995 28.6% 71.6% 29995 28.6% rocksdb::LRUCacheShard::Insert 15229 14.5% 86.1% 15229 14.5% rocksdb::UncompressBlockContentsForCompressionType (inline) 4373 4.2% 90.3% 4551 4.3% JVM_FindSignal 2881 2.7% 93.0% 2881 2.7% rocksdb::::ReadBlockFromFile (inline) 1162 1.1% 94.1% 1176 1.1% rocksdb::BlockFetcher::ReadBlockContents (inline) 1036 1.0% 95.1% 1036 1.0% std::__cxx11::basic_string::_M_mutate 869 0.8% 95.9% 869 0.8% std::vector::_M_realloc_insert (inline) 806 0.8% 96.7% 806 0.8% SnmpAgent::GetVariables (inline) </pre> Pull Request resolved: https://github.com/facebook/rocksdb/pull/9023 Reviewed By: pdillinger Differential Revision: D31610907 Pulled By: mrambacher fbshipit-source-id: 574ff51b639dd46ad253a8e664a575f06b7cc85d
3 years ago
void SyncPoint::Process(const Slice& point, void* cb_arg) {
impl_->Process(point, cb_arg);
}
} // namespace ROCKSDB_NAMESPACE
#endif // NDEBUG
namespace ROCKSDB_NAMESPACE {
void SetupSyncPointsToMockDirectIO() {
#if !defined(NDEBUG) && !defined(OS_MACOSX) && !defined(OS_WIN) && \
!defined(OS_SOLARIS) && !defined(OS_AIX) && !defined(OS_OPENBSD)
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"NewWritableFile:O_DIRECT", [&](void* arg) {
int* val = static_cast<int*>(arg);
*val &= ~O_DIRECT;
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"NewRandomAccessFile:O_DIRECT", [&](void* arg) {
int* val = static_cast<int*>(arg);
*val &= ~O_DIRECT;
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"NewSequentialFile:O_DIRECT", [&](void* arg) {
int* val = static_cast<int*>(arg);
*val &= ~O_DIRECT;
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
#endif
}
} // namespace ROCKSDB_NAMESPACE