048b86d697
R=haraken@chromium.org BUG= Review URL: https://chromiumcodereview.appspot.com/12040075 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13529 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
// Copyright 2012 the V8 project authors. All rights reserved.
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following
|
|
// disclaimer in the documentation and/or other materials provided
|
|
// with the distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#include "v8.h"
|
|
|
|
#include "counters.h"
|
|
#include "isolate.h"
|
|
#include "platform.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
|
|
StatsTable::StatsTable()
|
|
: lookup_function_(NULL),
|
|
create_histogram_function_(NULL),
|
|
add_histogram_sample_function_(NULL) {}
|
|
|
|
|
|
int* StatsCounter::FindLocationInStatsTable() const {
|
|
return Isolate::Current()->stats_table()->FindLocation(name_);
|
|
}
|
|
|
|
|
|
// Start the timer.
|
|
void StatsCounterTimer::Start() {
|
|
if (!counter_.Enabled())
|
|
return;
|
|
stop_time_ = 0;
|
|
start_time_ = OS::Ticks();
|
|
}
|
|
|
|
// Stop the timer and record the results.
|
|
void StatsCounterTimer::Stop() {
|
|
if (!counter_.Enabled())
|
|
return;
|
|
stop_time_ = OS::Ticks();
|
|
|
|
// Compute the delta between start and stop, in milliseconds.
|
|
int milliseconds = static_cast<int>(stop_time_ - start_time_) / 1000;
|
|
counter_.Increment(milliseconds);
|
|
}
|
|
|
|
void Histogram::AddSample(int sample) {
|
|
if (Enabled()) {
|
|
Isolate::Current()->stats_table()->AddHistogramSample(histogram_, sample);
|
|
}
|
|
}
|
|
|
|
void* Histogram::CreateHistogram() const {
|
|
return Isolate::Current()->stats_table()->
|
|
CreateHistogram(name_, min_, max_, num_buckets_);
|
|
}
|
|
|
|
// Start the timer.
|
|
void HistogramTimer::Start() {
|
|
if (histogram_.Enabled()) {
|
|
stop_time_ = 0;
|
|
start_time_ = OS::Ticks();
|
|
}
|
|
if (FLAG_log_internal_timer_events) {
|
|
LOG(Isolate::Current(), TimerEvent(Logger::START, histogram_.name_));
|
|
}
|
|
}
|
|
|
|
// Stop the timer and record the results.
|
|
void HistogramTimer::Stop() {
|
|
if (histogram_.Enabled()) {
|
|
stop_time_ = OS::Ticks();
|
|
// Compute the delta between start and stop, in milliseconds.
|
|
int milliseconds = static_cast<int>(stop_time_ - start_time_) / 1000;
|
|
histogram_.AddSample(milliseconds);
|
|
}
|
|
if (FLAG_log_internal_timer_events) {
|
|
LOG(Isolate::Current(), TimerEvent(Logger::END, histogram_.name_));
|
|
}
|
|
}
|
|
|
|
} } // namespace v8::internal
|