rocksdb/env/file_system_tracer.cc

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// Copyright (c) 2019-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 "env/file_system_tracer.h"
#include "rocksdb/env.h"
namespace ROCKSDB_NAMESPACE {
IOStatus FileSystemTracingWrapper::NewWritableFile(
const std::string& fname, const FileOptions& file_opts,
std::unique_ptr<FSWritableFile>* result, IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->NewWritableFile(fname, file_opts, result, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(elapsed, TraceType::kIOFileName, __func__, elapsed,
s.ToString(), fname);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FileSystemTracingWrapper::NewDirectory(
const std::string& name, const IOOptions& io_opts,
std::unique_ptr<FSDirectory>* result, IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->NewDirectory(name, io_opts, result, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOFileName, __func__,
elapsed, s.ToString(), name);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FileSystemTracingWrapper::GetChildren(const std::string& dir,
const IOOptions& io_opts,
std::vector<std::string>* r,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->GetChildren(dir, io_opts, r, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOFileName, __func__,
elapsed, s.ToString(), dir);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FileSystemTracingWrapper::DeleteFile(const std::string& fname,
const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->DeleteFile(fname, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOFileName, __func__,
elapsed, s.ToString(), fname);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FileSystemTracingWrapper::CreateDir(const std::string& dirname,
const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->CreateDir(dirname, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOFileName, __func__,
elapsed, s.ToString(), dirname);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FileSystemTracingWrapper::CreateDirIfMissing(
const std::string& dirname, const IOOptions& options, IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->CreateDirIfMissing(dirname, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOFileName, __func__,
elapsed, s.ToString(), dirname);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FileSystemTracingWrapper::DeleteDir(const std::string& dirname,
const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->DeleteDir(dirname, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOFileName, __func__,
elapsed, s.ToString(), dirname);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FileSystemTracingWrapper::GetFileSize(const std::string& fname,
const IOOptions& options,
uint64_t* file_size,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->GetFileSize(fname, options, file_size, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOFileNameAndFileSize,
__func__, elapsed, s.ToString(), fname, *file_size);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSSequentialFileTracingWrapper::Read(size_t n,
const IOOptions& options,
Slice* result, char* scratch,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->Read(n, options, result, scratch, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLen, __func__,
elapsed, s.ToString(), result->size());
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSSequentialFileTracingWrapper::InvalidateCache(size_t offset,
size_t length) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->InvalidateCache(offset, length);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), length, offset);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSSequentialFileTracingWrapper::PositionedRead(
uint64_t offset, size_t n, const IOOptions& options, Slice* result,
char* scratch, IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s =
target()->PositionedRead(offset, n, options, result, scratch, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), result->size(),
offset);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSRandomAccessFileTracingWrapper::Read(uint64_t offset, size_t n,
const IOOptions& options,
Slice* result, char* scratch,
IODebugContext* dbg) const {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->Read(offset, n, options, result, scratch, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), n, offset);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSRandomAccessFileTracingWrapper::MultiRead(FSReadRequest* reqs,
size_t num_reqs,
const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->MultiRead(reqs, num_reqs, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
uint64_t latency = elapsed;
for (size_t i = 0; i < num_reqs; i++) {
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, latency, reqs[i].status.ToString(),
reqs[i].len, reqs[i].offset);
io_tracer_->WriteIOOp(io_record);
}
return s;
}
IOStatus FSRandomAccessFileTracingWrapper::Prefetch(uint64_t offset, size_t n,
const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->Prefetch(offset, n, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), n, offset);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSRandomAccessFileTracingWrapper::InvalidateCache(size_t offset,
size_t length) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->InvalidateCache(offset, length);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), length,
static_cast<uint64_t>(offset));
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSWritableFileTracingWrapper::Append(const Slice& data,
const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->Append(data, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLen, __func__,
elapsed, s.ToString(), data.size());
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSWritableFileTracingWrapper::PositionedAppend(
const Slice& data, uint64_t offset, const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->PositionedAppend(data, offset, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), data.size(), offset);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSWritableFileTracingWrapper::Truncate(uint64_t size,
const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->Truncate(size, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLen, __func__,
elapsed, s.ToString(), size);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSWritableFileTracingWrapper::Close(const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->Close(options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOGeneral, __func__,
elapsed, s.ToString());
io_tracer_->WriteIOOp(io_record);
return s;
}
uint64_t FSWritableFileTracingWrapper::GetFileSize(const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
uint64_t file_size = target()->GetFileSize(options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOFileNameAndFileSize,
"GetFileSize", elapsed, "" /* file_name */,
file_size);
io_tracer_->WriteIOOp(io_record);
return file_size;
}
IOStatus FSWritableFileTracingWrapper::InvalidateCache(size_t offset,
size_t length) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->InvalidateCache(offset, length);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), length,
static_cast<uint64_t>(offset));
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSRandomRWFileTracingWrapper::Write(uint64_t offset, const Slice& data,
const IOOptions& options,
IODebugContext* dbg) {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->Write(offset, data, options, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), data.size(), offset);
io_tracer_->WriteIOOp(io_record);
return s;
}
IOStatus FSRandomRWFileTracingWrapper::Read(uint64_t offset, size_t n,
const IOOptions& options,
Slice* result, char* scratch,
IODebugContext* dbg) const {
StopWatchNano timer(Env::Default());
timer.Start();
IOStatus s = target()->Read(offset, n, options, result, scratch, dbg);
uint64_t elapsed = timer.ElapsedNanos();
IOTraceRecord io_record(env_->NowNanos(), TraceType::kIOLenAndOffset,
__func__, elapsed, s.ToString(), n, offset);
io_tracer_->WriteIOOp(io_record);
return s;
}
} // namespace ROCKSDB_NAMESPACE