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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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1505 } | 1505 } |
1506 | 1506 |
1507 inline intptr_t OldGenerationCapacityAvailable() { | 1507 inline intptr_t OldGenerationCapacityAvailable() { |
1508 return max_old_generation_size_ - PromotedTotalSize(); | 1508 return max_old_generation_size_ - PromotedTotalSize(); |
1509 } | 1509 } |
1510 | 1510 |
1511 static const intptr_t kMinimumOldGenerationAllocationLimit = | 1511 static const intptr_t kMinimumOldGenerationAllocationLimit = |
1512 8 * (Page::kPageSize > MB ? Page::kPageSize : MB); | 1512 8 * (Page::kPageSize > MB ? Page::kPageSize : MB); |
1513 | 1513 |
1514 intptr_t OldGenerationAllocationLimit(intptr_t old_gen_size) { | 1514 intptr_t OldGenerationAllocationLimit(intptr_t old_gen_size) { |
1515 const int divisor = FLAG_stress_compaction ? 10 : | 1515 const int divisor = FLAG_stress_compaction ? 10 : 1; |
1516 new_space_high_promotion_mode_active_ ? 1 : 3; | |
1517 intptr_t limit = | 1516 intptr_t limit = |
1518 Max(old_gen_size + old_gen_size / divisor, | 1517 Max(old_gen_size + old_gen_size / divisor, |
1519 kMinimumOldGenerationAllocationLimit); | 1518 kMinimumOldGenerationAllocationLimit); |
1520 limit += new_space_.Capacity(); | 1519 limit += new_space_.Capacity(); |
1521 // TODO(hpayer): Can be removed when when pretenuring is supported for all | |
1522 // allocation sites. | |
1523 if (IsHighSurvivalRate() && IsStableOrIncreasingSurvivalTrend()) { | |
1524 limit *= 2; | |
1525 } | |
1526 intptr_t halfway_to_the_max = (old_gen_size + max_old_generation_size_) / 2; | 1520 intptr_t halfway_to_the_max = (old_gen_size + max_old_generation_size_) / 2; |
1527 return Min(limit, halfway_to_the_max); | 1521 return Min(limit, halfway_to_the_max); |
1528 } | 1522 } |
1529 | 1523 |
1530 // Indicates whether inline bump-pointer allocation has been disabled. | 1524 // Indicates whether inline bump-pointer allocation has been disabled. |
1531 bool inline_allocation_disabled() { return inline_allocation_disabled_; } | 1525 bool inline_allocation_disabled() { return inline_allocation_disabled_; } |
1532 | 1526 |
1533 // Switch whether inline bump-pointer allocation should be used. | 1527 // Switch whether inline bump-pointer allocation should be used. |
1534 void EnableInlineAllocation(); | 1528 void EnableInlineAllocation(); |
1535 void DisableInlineAllocation(); | 1529 void DisableInlineAllocation(); |
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3038 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. | 3032 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. |
3039 | 3033 |
3040 private: | 3034 private: |
3041 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); | 3035 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); |
3042 }; | 3036 }; |
3043 #endif // DEBUG | 3037 #endif // DEBUG |
3044 | 3038 |
3045 } } // namespace v8::internal | 3039 } } // namespace v8::internal |
3046 | 3040 |
3047 #endif // V8_HEAP_H_ | 3041 #endif // V8_HEAP_H_ |
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