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Issue 252123006: Wait for sweeper threads in incremental marking step when sweeper threads are done sweeping. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 7 months ago
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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 // 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 "v8.h" 5 #include "v8.h"
6 6
7 #include "code-stubs.h" 7 #include "code-stubs.h"
8 #include "compilation-cache.h" 8 #include "compilation-cache.h"
9 #include "cpu-profiler.h" 9 #include "cpu-profiler.h"
10 #include "deoptimizer.h" 10 #include "deoptimizer.h"
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601 } 601 }
602 ParallelSweepSpacesComplete(); 602 ParallelSweepSpacesComplete();
603 sweeping_pending_ = false; 603 sweeping_pending_ = false;
604 RefillFreeList(heap()->paged_space(OLD_DATA_SPACE)); 604 RefillFreeList(heap()->paged_space(OLD_DATA_SPACE));
605 RefillFreeList(heap()->paged_space(OLD_POINTER_SPACE)); 605 RefillFreeList(heap()->paged_space(OLD_POINTER_SPACE));
606 heap()->paged_space(OLD_DATA_SPACE)->ResetUnsweptFreeBytes(); 606 heap()->paged_space(OLD_DATA_SPACE)->ResetUnsweptFreeBytes();
607 heap()->paged_space(OLD_POINTER_SPACE)->ResetUnsweptFreeBytes(); 607 heap()->paged_space(OLD_POINTER_SPACE)->ResetUnsweptFreeBytes();
608 } 608 }
609 609
610 610
611 bool MarkCompactCollector::IsSweepingCompleted() {
612 for (int i = 0; i < isolate()->num_sweeper_threads(); i++) {
613 if (!isolate()->sweeper_threads()[i]->SweepingCompleted()) {
614 return false;
615 }
616 }
617 if (FLAG_job_based_sweeping) {
618 if (!pending_sweeper_jobs_semaphore_.WaitFor(TimeDelta::FromSeconds(0))) {
619 return false;
620 }
621 pending_sweeper_jobs_semaphore_.Signal();
622 }
623 return true;
624 }
625
626
611 void MarkCompactCollector::RefillFreeList(PagedSpace* space) { 627 void MarkCompactCollector::RefillFreeList(PagedSpace* space) {
612 FreeList* free_list; 628 FreeList* free_list;
613 629
614 if (space == heap()->old_pointer_space()) { 630 if (space == heap()->old_pointer_space()) {
615 free_list = free_list_old_pointer_space_.get(); 631 free_list = free_list_old_pointer_space_.get();
616 } else if (space == heap()->old_data_space()) { 632 } else if (space == heap()->old_data_space()) {
617 free_list = free_list_old_data_space_.get(); 633 free_list = free_list_old_data_space_.get();
618 } else { 634 } else {
619 // Any PagedSpace might invoke RefillFreeLists, so we need to make sure 635 // Any PagedSpace might invoke RefillFreeLists, so we need to make sure
620 // to only refill them for old data and pointer spaces. 636 // to only refill them for old data and pointer spaces.
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4522 while (buffer != NULL) { 4538 while (buffer != NULL) {
4523 SlotsBuffer* next_buffer = buffer->next(); 4539 SlotsBuffer* next_buffer = buffer->next();
4524 DeallocateBuffer(buffer); 4540 DeallocateBuffer(buffer);
4525 buffer = next_buffer; 4541 buffer = next_buffer;
4526 } 4542 }
4527 *buffer_address = NULL; 4543 *buffer_address = NULL;
4528 } 4544 }
4529 4545
4530 4546
4531 } } // namespace v8::internal 4547 } } // namespace v8::internal
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