9fdc9fbeea
Summary: This is likely a temp fix before we figure out a better way. PerfStepTimer is used intensively in certain benchmarking/testings. https://github.com/facebook/rocksdb/issues/7858 stores a `shared_ptr` to system clock in PerfStepTimer which gets created each time a `PerfStepTimer` object is created. The atomic operations in `shared_ptr` may add overhead in CPU cycles. Therefore, we change it back to a raw `SystemClock*` for now. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8006 Test Plan: make check Reviewed By: pdillinger Differential Revision: D26703560 Pulled By: riversand963 fbshipit-source-id: 519d0769b28da2334bea7d86c848fcc26ee8a17f
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
// 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).
|
|
//
|
|
#pragma once
|
|
#include "monitoring/perf_step_timer.h"
|
|
#include "rocksdb/iostats_context.h"
|
|
|
|
#ifdef ROCKSDB_SUPPORT_THREAD_LOCAL
|
|
namespace ROCKSDB_NAMESPACE {
|
|
extern __thread IOStatsContext iostats_context;
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
// increment a specific counter by the specified value
|
|
#define IOSTATS_ADD(metric, value) (iostats_context.metric += value)
|
|
|
|
// Increase metric value only when it is positive
|
|
#define IOSTATS_ADD_IF_POSITIVE(metric, value) \
|
|
if (value > 0) { IOSTATS_ADD(metric, value); }
|
|
|
|
// reset a specific counter to zero
|
|
#define IOSTATS_RESET(metric) (iostats_context.metric = 0)
|
|
|
|
// reset all counters to zero
|
|
#define IOSTATS_RESET_ALL() (iostats_context.Reset())
|
|
|
|
#define IOSTATS_SET_THREAD_POOL_ID(value) \
|
|
(iostats_context.thread_pool_id = value)
|
|
|
|
#define IOSTATS_THREAD_POOL_ID() (iostats_context.thread_pool_id)
|
|
|
|
#define IOSTATS(metric) (iostats_context.metric)
|
|
|
|
// Declare and set start time of the timer
|
|
#define IOSTATS_TIMER_GUARD(metric) \
|
|
PerfStepTimer iostats_step_timer_##metric(&(iostats_context.metric)); \
|
|
iostats_step_timer_##metric.Start();
|
|
|
|
// Declare and set start time of the timer
|
|
#define IOSTATS_CPU_TIMER_GUARD(metric, clock) \
|
|
PerfStepTimer iostats_step_timer_##metric( \
|
|
&(iostats_context.metric), clock.get(), true, \
|
|
PerfLevel::kEnableTimeAndCPUTimeExceptForMutex); \
|
|
iostats_step_timer_##metric.Start();
|
|
|
|
#else // ROCKSDB_SUPPORT_THREAD_LOCAL
|
|
|
|
#define IOSTATS_ADD(metric, value)
|
|
#define IOSTATS_ADD_IF_POSITIVE(metric, value)
|
|
#define IOSTATS_RESET(metric)
|
|
#define IOSTATS_RESET_ALL()
|
|
#define IOSTATS_SET_THREAD_POOL_ID(value)
|
|
#define IOSTATS_THREAD_POOL_ID()
|
|
#define IOSTATS(metric) 0
|
|
|
|
#define IOSTATS_TIMER_GUARD(metric)
|
|
#define IOSTATS_CPU_TIMER_GUARD(metric, clock) static_cast<void>(clock)
|
|
|
|
#endif // ROCKSDB_SUPPORT_THREAD_LOCAL
|