c301f8203c
Also removed Logger fields that used to be used for writing compressed logs. BUG=None R=bmeurer@chromium.org, loislo@chromium.org Review URL: https://codereview.chromium.org/20768002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15941 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
// Copyright 2012 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_RUNTIME_PROFILER_H_
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#define V8_RUNTIME_PROFILER_H_
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#include "allocation.h"
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#include "atomicops.h"
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namespace v8 {
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namespace internal {
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class Isolate;
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class JSFunction;
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class Object;
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class Semaphore;
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class RuntimeProfiler {
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public:
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explicit RuntimeProfiler(Isolate* isolate);
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void OptimizeNow();
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void SetUp();
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void Reset();
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void TearDown();
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void NotifyICChanged() { any_ic_changed_ = true; }
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// Rate limiting support.
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void UpdateSamplesAfterScavenge();
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void RemoveDeadSamples();
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void UpdateSamplesAfterCompact(ObjectVisitor* visitor);
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void AttemptOnStackReplacement(JSFunction* function);
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private:
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static const int kSamplerWindowSize = 16;
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void Optimize(JSFunction* function, const char* reason);
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void ClearSampleBuffer();
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void ClearSampleBufferNewSpaceEntries();
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int LookupSample(JSFunction* function);
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void AddSample(JSFunction* function, int weight);
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bool CodeSizeOKForOSR(Code* shared_code);
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Isolate* isolate_;
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int sampler_threshold_;
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int sampler_threshold_size_factor_;
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int sampler_ticks_until_threshold_adjustment_;
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Object* sampler_window_[kSamplerWindowSize];
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int sampler_window_position_;
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int sampler_window_weight_[kSamplerWindowSize];
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bool any_ic_changed_;
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bool code_generated_;
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};
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} } // namespace v8::internal
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#endif // V8_RUNTIME_PROFILER_H_
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