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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/heap/spaces.h" | 5 #include "src/heap/spaces.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/base/platform/platform.h" | 10 #include "src/base/platform/platform.h" |
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2832 // If sweeping is still in progress try to sweep pages on the main thread. | 2832 // If sweeping is still in progress try to sweep pages on the main thread. |
2833 int max_freed = collector->sweeper().ParallelSweepSpace( | 2833 int max_freed = collector->sweeper().ParallelSweepSpace( |
2834 identity(), size_in_bytes, kMaxPagesToSweep); | 2834 identity(), size_in_bytes, kMaxPagesToSweep); |
2835 RefillFreeList(); | 2835 RefillFreeList(); |
2836 if (max_freed >= size_in_bytes) { | 2836 if (max_freed >= size_in_bytes) { |
2837 object = free_list_.Allocate(static_cast<size_t>(size_in_bytes)); | 2837 object = free_list_.Allocate(static_cast<size_t>(size_in_bytes)); |
2838 if (object != nullptr) return object; | 2838 if (object != nullptr) return object; |
2839 } | 2839 } |
2840 } | 2840 } |
2841 | 2841 |
2842 if (heap()->ShouldExpandOldGenerationOnAllocationFailure() && Expand()) { | 2842 if (heap()->ShouldExpandOldGenerationOnSlowAllocation() && Expand()) { |
2843 DCHECK((CountTotalPages() > 1) || | 2843 DCHECK((CountTotalPages() > 1) || |
2844 (static_cast<size_t>(size_in_bytes) <= free_list_.Available())); | 2844 (static_cast<size_t>(size_in_bytes) <= free_list_.Available())); |
2845 return free_list_.Allocate(static_cast<size_t>(size_in_bytes)); | 2845 return free_list_.Allocate(static_cast<size_t>(size_in_bytes)); |
2846 } | 2846 } |
2847 | 2847 |
2848 // If sweeper threads are active, wait for them at that point and steal | 2848 // If sweeper threads are active, wait for them at that point and steal |
2849 // elements form their free-lists. Allocation may still fail their which | 2849 // elements form their free-lists. Allocation may still fail their which |
2850 // would indicate that there is not enough memory for the given allocation. | 2850 // would indicate that there is not enough memory for the given allocation. |
2851 return SweepAndRetryAllocation(size_in_bytes); | 2851 return SweepAndRetryAllocation(size_in_bytes); |
2852 } | 2852 } |
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2948 heap()->memory_allocator()->Free<MemoryAllocator::kFull>(page); | 2948 heap()->memory_allocator()->Free<MemoryAllocator::kFull>(page); |
2949 } | 2949 } |
2950 SetUp(); | 2950 SetUp(); |
2951 } | 2951 } |
2952 | 2952 |
2953 | 2953 |
2954 AllocationResult LargeObjectSpace::AllocateRaw(int object_size, | 2954 AllocationResult LargeObjectSpace::AllocateRaw(int object_size, |
2955 Executability executable) { | 2955 Executability executable) { |
2956 // Check if we want to force a GC before growing the old space further. | 2956 // Check if we want to force a GC before growing the old space further. |
2957 // If so, fail the allocation. | 2957 // If so, fail the allocation. |
2958 if (!heap()->CanExpandOldGeneration(object_size)) { | 2958 if (!heap()->CanExpandOldGeneration(object_size) || |
| 2959 !heap()->ShouldExpandOldGenerationOnSlowAllocation()) { |
2959 return AllocationResult::Retry(identity()); | 2960 return AllocationResult::Retry(identity()); |
2960 } | 2961 } |
2961 | 2962 |
2962 LargePage* page = heap()->memory_allocator()->AllocateLargePage( | 2963 LargePage* page = heap()->memory_allocator()->AllocateLargePage( |
2963 object_size, this, executable); | 2964 object_size, this, executable); |
2964 if (page == NULL) return AllocationResult::Retry(identity()); | 2965 if (page == NULL) return AllocationResult::Retry(identity()); |
2965 DCHECK_GE(page->area_size(), static_cast<size_t>(object_size)); | 2966 DCHECK_GE(page->area_size(), static_cast<size_t>(object_size)); |
2966 | 2967 |
2967 size_ += static_cast<int>(page->size()); | 2968 size_ += static_cast<int>(page->size()); |
2968 AccountCommitted(page->size()); | 2969 AccountCommitted(page->size()); |
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3228 object->ShortPrint(); | 3229 object->ShortPrint(); |
3229 PrintF("\n"); | 3230 PrintF("\n"); |
3230 } | 3231 } |
3231 printf(" --------------------------------------\n"); | 3232 printf(" --------------------------------------\n"); |
3232 printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes()); | 3233 printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes()); |
3233 } | 3234 } |
3234 | 3235 |
3235 #endif // DEBUG | 3236 #endif // DEBUG |
3236 } // namespace internal | 3237 } // namespace internal |
3237 } // namespace v8 | 3238 } // namespace v8 |
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