| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/mac/mac_startup_profiler.h" |
| |
| #include "base/logging.h" |
| #include "base/metrics/histogram.h" |
| #include "components/startup_metric_utils/startup_metric_utils.h" |
| |
| // static |
| MacStartupProfiler* MacStartupProfiler::GetInstance() { |
| return Singleton<MacStartupProfiler>::get(); |
| } |
| |
| MacStartupProfiler::MacStartupProfiler() : recorded_metrics_(false) { |
| } |
| |
| MacStartupProfiler::~MacStartupProfiler() { |
| } |
| |
| void MacStartupProfiler::Profile(Location location) { |
| profiled_times_[location] = base::Time::Now(); |
| } |
| |
| void MacStartupProfiler::RecordMetrics() { |
| const base::Time* main_entry_time = |
| startup_metric_utils::MainEntryPointTime(); |
| DCHECK(main_entry_time); |
| DCHECK(!recorded_metrics_); |
| |
| recorded_metrics_ = true; |
| |
| for (std::map<Location, base::Time>::const_iterator it = |
| profiled_times_.begin(); |
| it != profiled_times_.end(); |
| ++it) { |
| const base::Time& location_time = it->second; |
| base::TimeDelta delta = location_time - *main_entry_time; |
| RecordHistogram(it->first, delta); |
| } |
| } |
| |
| const std::string MacStartupProfiler::HistogramName(Location location) { |
| std::string prefix("Startup.OSX."); |
| switch (location) { |
| case PRE_MAIN_MESSAGE_LOOP_START: |
| return prefix + "PreMainMessageLoopStart"; |
| case AWAKE_FROM_NIB: |
| return prefix + "AwakeFromNib"; |
| case POST_MAIN_MESSAGE_LOOP_START: |
| return prefix + "PostMainMessageLoopStart"; |
| case PRE_PROFILE_INIT: |
| return prefix + "PreProfileInit"; |
| case POST_PROFILE_INIT: |
| return prefix + "PostProfileInit"; |
| case WILL_FINISH_LAUNCHING: |
| return prefix + "WillFinishLaunching"; |
| case DID_FINISH_LAUNCHING: |
| return prefix + "DockIconWillFinishBouncing"; |
| } |
| } |
| |
| void MacStartupProfiler::RecordHistogram(Location location, |
| const base::TimeDelta& delta) { |
| const std::string name(HistogramName(location)); |
| base::TimeDelta min = base::TimeDelta::FromMilliseconds(10); |
| base::TimeDelta max = base::TimeDelta::FromMinutes(1); |
| int bucket_count = 100; |
| |
| // No need to cache the histogram pointers, since each invocation of this |
| // method will be the first and only usage of a histogram with that given |
| // name. |
| base::HistogramBase* histogram = base::Histogram::FactoryTimeGet( |
| name, |
| min, |
| max, |
| bucket_count, |
| base::HistogramBase::kUmaTargetedHistogramFlag); |
| histogram->AddTime(delta); |
| } |