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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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2254 } | 2254 } |
2255 | 2255 |
2256 bool IsLowSurvivalRate() { | 2256 bool IsLowSurvivalRate() { |
2257 return low_survival_rate_period_length_ > 0; | 2257 return low_survival_rate_period_length_ > 0; |
2258 } | 2258 } |
2259 | 2259 |
2260 void SelectScavengingVisitorsTable(); | 2260 void SelectScavengingVisitorsTable(); |
2261 | 2261 |
2262 void StartIdleRound() { | 2262 void StartIdleRound() { |
2263 mark_sweeps_since_idle_round_started_ = 0; | 2263 mark_sweeps_since_idle_round_started_ = 0; |
| 2264 ms_count_at_last_idle_notification_ = ms_count_; |
2264 } | 2265 } |
2265 | 2266 |
2266 void FinishIdleRound() { | 2267 void FinishIdleRound() { |
2267 mark_sweeps_since_idle_round_started_ = kMaxMarkSweepsInIdleRound; | 2268 mark_sweeps_since_idle_round_started_ = kMaxMarkSweepsInIdleRound; |
2268 scavenges_since_last_idle_round_ = 0; | 2269 scavenges_since_last_idle_round_ = 0; |
2269 } | 2270 } |
2270 | 2271 |
2271 bool EnoughGarbageSinceLastIdleRound() { | 2272 bool EnoughGarbageSinceLastIdleRound() { |
2272 return (scavenges_since_last_idle_round_ >= kIdleScavengeThreshold); | 2273 return (scavenges_since_last_idle_round_ >= kIdleScavengeThreshold); |
2273 } | 2274 } |
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2330 | 2331 |
2331 Marking marking_; | 2332 Marking marking_; |
2332 | 2333 |
2333 IncrementalMarking incremental_marking_; | 2334 IncrementalMarking incremental_marking_; |
2334 | 2335 |
2335 int number_idle_notifications_; | 2336 int number_idle_notifications_; |
2336 unsigned int last_idle_notification_gc_count_; | 2337 unsigned int last_idle_notification_gc_count_; |
2337 bool last_idle_notification_gc_count_init_; | 2338 bool last_idle_notification_gc_count_init_; |
2338 | 2339 |
2339 int mark_sweeps_since_idle_round_started_; | 2340 int mark_sweeps_since_idle_round_started_; |
| 2341 int ms_count_at_last_idle_notification_; |
2340 unsigned int gc_count_at_last_idle_gc_; | 2342 unsigned int gc_count_at_last_idle_gc_; |
2341 int scavenges_since_last_idle_round_; | 2343 int scavenges_since_last_idle_round_; |
2342 | 2344 |
2343 // If the --deopt_every_n_garbage_collections flag is set to a positive value, | 2345 // If the --deopt_every_n_garbage_collections flag is set to a positive value, |
2344 // this variable holds the number of garbage collections since the last | 2346 // this variable holds the number of garbage collections since the last |
2345 // deoptimization triggered by garbage collection. | 2347 // deoptimization triggered by garbage collection. |
2346 int gcs_since_last_deopt_; | 2348 int gcs_since_last_deopt_; |
2347 | 2349 |
2348 #ifdef VERIFY_HEAP | 2350 #ifdef VERIFY_HEAP |
2349 int no_weak_embedded_maps_verification_scope_depth_; | 2351 int no_weak_embedded_maps_verification_scope_depth_; |
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3040 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. | 3042 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. |
3041 | 3043 |
3042 private: | 3044 private: |
3043 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); | 3045 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); |
3044 }; | 3046 }; |
3045 #endif // DEBUG | 3047 #endif // DEBUG |
3046 | 3048 |
3047 } } // namespace v8::internal | 3049 } } // namespace v8::internal |
3048 | 3050 |
3049 #endif // V8_HEAP_H_ | 3051 #endif // V8_HEAP_H_ |
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