7f824867f6
- perform CPU profiler sampling in the sampler thread as we used to; - skip sampling in the sampling thread if processing thread is running; - only install SIGPROF handler when CPU profiling is enabled. BUG=v8:2364 Review URL: https://codereview.chromium.org/11231002 Patch from Sergey Rogulenko <rogulenko@google.com> and Andrey Kosyakov <caseq@chromium.org>. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12985 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
// Copyright 2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_CPU_PROFILER_INL_H_
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#define V8_CPU_PROFILER_INL_H_
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#include "cpu-profiler.h"
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#include <new>
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#include "profile-generator-inl.h"
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#include "unbound-queue-inl.h"
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namespace v8 {
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namespace internal {
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void CodeCreateEventRecord::UpdateCodeMap(CodeMap* code_map) {
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code_map->AddCode(start, entry, size);
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if (shared != NULL) {
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entry->set_shared_id(code_map->GetSharedId(shared));
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}
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}
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void CodeMoveEventRecord::UpdateCodeMap(CodeMap* code_map) {
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code_map->MoveCode(from, to);
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}
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void SharedFunctionInfoMoveEventRecord::UpdateCodeMap(CodeMap* code_map) {
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code_map->MoveCode(from, to);
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}
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TickSample* ProfilerEventsProcessor::StartTickSampleEvent() {
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if (!ticks_buffer_is_empty_ || ticks_buffer_is_initialized_) return NULL;
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ticks_buffer_is_initialized_ = true;
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generator_->Tick();
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ticks_buffer_ = TickSampleEventRecord(enqueue_order_);
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return &ticks_buffer_.sample;
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}
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void ProfilerEventsProcessor::FinishTickSampleEvent() {
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ASSERT(ticks_buffer_is_initialized_ && ticks_buffer_is_empty_);
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ticks_buffer_is_empty_ = false;
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}
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bool ProfilerEventsProcessor::FilterOutCodeCreateEvent(
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Logger::LogEventsAndTags tag) {
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return FLAG_prof_browser_mode
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&& (tag != Logger::CALLBACK_TAG
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&& tag != Logger::FUNCTION_TAG
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&& tag != Logger::LAZY_COMPILE_TAG
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&& tag != Logger::REG_EXP_TAG
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&& tag != Logger::SCRIPT_TAG);
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}
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} } // namespace v8::internal
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#endif // V8_CPU_PROFILER_INL_H_
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