Revision b8a962d4f53c7122e6ae12fbe7fe764a77775dd8 authored by krad on 02 September 2015, 19:16:42 UTC, committed by krad on 02 September 2015, 21:06:03 UTC
Summary: Added commands to spawn crash, stress, asan, asan_crash, clang CI jobs Test Plan: Manual test Reviewers: sdong CC: leveldb@ Task ID: #6968635 Blame Rev:
1 parent 8a2d59a
perf_step_timer.h
// Copyright (c) 2013, 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.
//
#pragma once
#include "rocksdb/env.h"
#include "util/perf_level_imp.h"
#include "util/stop_watch.h"
namespace rocksdb {
class PerfStepTimer {
public:
PerfStepTimer(uint64_t* metric)
: enabled_(perf_level >= PerfLevel::kEnableTime),
env_(enabled_ ? Env::Default() : nullptr),
start_(0),
metric_(metric) {
}
~PerfStepTimer() {
Stop();
}
void Start() {
if (enabled_) {
start_ = env_->NowNanos();
}
}
void Measure() {
if (start_) {
uint64_t now = env_->NowNanos();
*metric_ += now - start_;
start_ = now;
}
}
void Stop() {
if (start_) {
*metric_ += env_->NowNanos() - start_;
start_ = 0;
}
}
private:
const bool enabled_;
Env* const env_;
uint64_t start_;
uint64_t* metric_;
};
} // namespace rocksdb
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