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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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40 | 40 |
41 static void OptimizeNow(); | 41 static void OptimizeNow(); |
42 static void OptimizeSoon(JSFunction* function); | 42 static void OptimizeSoon(JSFunction* function); |
43 | 43 |
44 static void NotifyTick(); | 44 static void NotifyTick(); |
45 | 45 |
46 static void Setup(); | 46 static void Setup(); |
47 static void Reset(); | 47 static void Reset(); |
48 static void TearDown(); | 48 static void TearDown(); |
49 | 49 |
50 static void MarkCompactPrologue(bool is_compacting); | |
51 static Object** SamplerWindowAddress(); | |
52 static int SamplerWindowSize(); | 50 static int SamplerWindowSize(); |
| 51 static void UpdateSamplesAfterScavenge(); |
| 52 static void RemoveDeadSamples(); |
| 53 static void UpdateSamplesAfterCompact(ObjectVisitor* visitor); |
53 }; | 54 }; |
54 | 55 |
55 | 56 |
56 // Rate limiter intended to be used in the profiler thread. | 57 // Rate limiter intended to be used in the profiler thread. |
57 class RuntimeProfilerRateLimiter BASE_EMBEDDED { | 58 class RuntimeProfilerRateLimiter BASE_EMBEDDED { |
58 public: | 59 public: |
59 RuntimeProfilerRateLimiter() : non_js_ticks_(0) { } | 60 RuntimeProfilerRateLimiter() : non_js_ticks_(0) { } |
60 | 61 |
61 // Suspends the current thread when not executing JavaScript to | 62 // Suspends the current thread when not executing JavaScript to |
62 // minimize CPU usage. Returns whether this thread was suspended | 63 // minimize CPU usage. Returns whether this thread was suspended |
63 // (and so might have to check whether profiling is still active.) | 64 // (and so might have to check whether profiling is still active.) |
64 // | 65 // |
65 // Does nothing when runtime profiling is not enabled. | 66 // Does nothing when runtime profiling is not enabled. |
66 bool SuspendIfNecessary(); | 67 bool SuspendIfNecessary(); |
67 | 68 |
68 private: | 69 private: |
69 int non_js_ticks_; | 70 int non_js_ticks_; |
70 | 71 |
71 DISALLOW_COPY_AND_ASSIGN(RuntimeProfilerRateLimiter); | 72 DISALLOW_COPY_AND_ASSIGN(RuntimeProfilerRateLimiter); |
72 }; | 73 }; |
73 | 74 |
74 } } // namespace v8::internal | 75 } } // namespace v8::internal |
75 | 76 |
76 #endif // V8_RUNTIME_PROFILER_H_ | 77 #endif // V8_RUNTIME_PROFILER_H_ |
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