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Issue 9227007: Version 3.8.6 (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 8 years, 11 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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58 58
59 static const int kSizeLimit = 1500; 59 static const int kSizeLimit = 1500;
60 60
61 61
62 Atomic32 RuntimeProfiler::state_ = 0; 62 Atomic32 RuntimeProfiler::state_ = 0;
63 // TODO(isolates): Create the semaphore lazily and clean it up when no 63 // TODO(isolates): Create the semaphore lazily and clean it up when no
64 // longer required. 64 // longer required.
65 Semaphore* RuntimeProfiler::semaphore_ = OS::CreateSemaphore(0); 65 Semaphore* RuntimeProfiler::semaphore_ = OS::CreateSemaphore(0);
66 66
67 #ifdef DEBUG 67 #ifdef DEBUG
68 bool RuntimeProfiler::has_been_globally_setup_ = false; 68 bool RuntimeProfiler::has_been_globally_set_up_ = false;
69 #endif 69 #endif
70 bool RuntimeProfiler::enabled_ = false; 70 bool RuntimeProfiler::enabled_ = false;
71 71
72 72
73 RuntimeProfiler::RuntimeProfiler(Isolate* isolate) 73 RuntimeProfiler::RuntimeProfiler(Isolate* isolate)
74 : isolate_(isolate), 74 : isolate_(isolate),
75 sampler_threshold_(kSamplerThresholdInit), 75 sampler_threshold_(kSamplerThresholdInit),
76 sampler_threshold_size_factor_(kSamplerThresholdSizeFactorInit), 76 sampler_threshold_size_factor_(kSamplerThresholdSizeFactorInit),
77 sampler_ticks_until_threshold_adjustment_( 77 sampler_ticks_until_threshold_adjustment_(
78 kSamplerTicksBetweenThresholdAdjustment), 78 kSamplerTicksBetweenThresholdAdjustment),
79 sampler_window_position_(0) { 79 sampler_window_position_(0) {
80 ClearSampleBuffer(); 80 ClearSampleBuffer();
81 } 81 }
82 82
83 83
84 void RuntimeProfiler::GlobalSetup() { 84 void RuntimeProfiler::GlobalSetup() {
85 ASSERT(!has_been_globally_setup_); 85 ASSERT(!has_been_globally_set_up_);
86 enabled_ = V8::UseCrankshaft() && FLAG_opt; 86 enabled_ = V8::UseCrankshaft() && FLAG_opt;
87 #ifdef DEBUG 87 #ifdef DEBUG
88 has_been_globally_setup_ = true; 88 has_been_globally_set_up_ = true;
89 #endif 89 #endif
90 } 90 }
91 91
92 92
93 void RuntimeProfiler::Optimize(JSFunction* function) { 93 void RuntimeProfiler::Optimize(JSFunction* function) {
94 ASSERT(function->IsOptimizable()); 94 ASSERT(function->IsOptimizable());
95 if (FLAG_trace_opt) { 95 if (FLAG_trace_opt) {
96 PrintF("[marking "); 96 PrintF("[marking ");
97 function->PrintName(); 97 function->PrintName();
98 PrintF(" 0x%" V8PRIxPTR, reinterpret_cast<intptr_t>(function->address())); 98 PrintF(" 0x%" V8PRIxPTR, reinterpret_cast<intptr_t>(function->address()));
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238 AddSample(samples[i], kSamplerFrameWeight[i]); 238 AddSample(samples[i], kSamplerFrameWeight[i]);
239 } 239 }
240 } 240 }
241 241
242 242
243 void RuntimeProfiler::NotifyTick() { 243 void RuntimeProfiler::NotifyTick() {
244 isolate_->stack_guard()->RequestRuntimeProfilerTick(); 244 isolate_->stack_guard()->RequestRuntimeProfilerTick();
245 } 245 }
246 246
247 247
248 void RuntimeProfiler::Setup() { 248 void RuntimeProfiler::SetUp() {
249 ASSERT(has_been_globally_setup_); 249 ASSERT(has_been_globally_set_up_);
250 ClearSampleBuffer(); 250 ClearSampleBuffer();
251 // If the ticker hasn't already started, make sure to do so to get 251 // If the ticker hasn't already started, make sure to do so to get
252 // the ticks for the runtime profiler. 252 // the ticks for the runtime profiler.
253 if (IsEnabled()) isolate_->logger()->EnsureTickerStarted(); 253 if (IsEnabled()) isolate_->logger()->EnsureTickerStarted();
254 } 254 }
255 255
256 256
257 void RuntimeProfiler::Reset() { 257 void RuntimeProfiler::Reset() {
258 sampler_threshold_ = kSamplerThresholdInit; 258 sampler_threshold_ = kSamplerThresholdInit;
259 sampler_threshold_size_factor_ = kSamplerThresholdSizeFactorInit; 259 sampler_threshold_size_factor_ = kSamplerThresholdSizeFactorInit;
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355 355
356 bool RuntimeProfilerRateLimiter::SuspendIfNecessary() { 356 bool RuntimeProfilerRateLimiter::SuspendIfNecessary() {
357 if (!RuntimeProfiler::IsSomeIsolateInJS()) { 357 if (!RuntimeProfiler::IsSomeIsolateInJS()) {
358 return RuntimeProfiler::WaitForSomeIsolateToEnterJS(); 358 return RuntimeProfiler::WaitForSomeIsolateToEnterJS();
359 } 359 }
360 return false; 360 return false;
361 } 361 }
362 362
363 363
364 } } // namespace v8::internal 364 } } // namespace v8::internal
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