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Issue 12177017: Fixed IsSweepingComplete and EnsureSweeperProgress helper functions. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 10 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 2
3 #include <stdlib.h> 3 #include <stdlib.h>
4 4
5 #include "v8.h" 5 #include "v8.h"
6 6
7 #include "compilation-cache.h" 7 #include "compilation-cache.h"
8 #include "execution.h" 8 #include "execution.h"
9 #include "factory.h" 9 #include "factory.h"
10 #include "macro-assembler.h" 10 #include "macro-assembler.h"
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1423 TEST(TestSizeOfObjects) { 1423 TEST(TestSizeOfObjects) {
1424 v8::V8::Initialize(); 1424 v8::V8::Initialize();
1425 1425
1426 // Get initial heap size after several full GCs, which will stabilize 1426 // Get initial heap size after several full GCs, which will stabilize
1427 // the heap size and return with sweeping finished completely. 1427 // the heap size and return with sweeping finished completely.
1428 HEAP->CollectAllGarbage(Heap::kNoGCFlags); 1428 HEAP->CollectAllGarbage(Heap::kNoGCFlags);
1429 HEAP->CollectAllGarbage(Heap::kNoGCFlags); 1429 HEAP->CollectAllGarbage(Heap::kNoGCFlags);
1430 HEAP->CollectAllGarbage(Heap::kNoGCFlags); 1430 HEAP->CollectAllGarbage(Heap::kNoGCFlags);
1431 HEAP->CollectAllGarbage(Heap::kNoGCFlags); 1431 HEAP->CollectAllGarbage(Heap::kNoGCFlags);
1432 HEAP->CollectAllGarbage(Heap::kNoGCFlags); 1432 HEAP->CollectAllGarbage(Heap::kNoGCFlags);
1433 CHECK(HEAP->old_pointer_space()->IsSweepingComplete()); 1433 CHECK(HEAP->old_pointer_space()->IsLazySweepingComplete());
1434 int initial_size = static_cast<int>(HEAP->SizeOfObjects()); 1434 int initial_size = static_cast<int>(HEAP->SizeOfObjects());
1435 1435
1436 { 1436 {
1437 // Allocate objects on several different old-space pages so that 1437 // Allocate objects on several different old-space pages so that
1438 // lazy sweeping kicks in for subsequent GC runs. 1438 // lazy sweeping kicks in for subsequent GC runs.
1439 AlwaysAllocateScope always_allocate; 1439 AlwaysAllocateScope always_allocate;
1440 int filler_size = static_cast<int>(FixedArray::SizeFor(8192)); 1440 int filler_size = static_cast<int>(FixedArray::SizeFor(8192));
1441 for (int i = 1; i <= 100; i++) { 1441 for (int i = 1; i <= 100; i++) {
1442 HEAP->AllocateFixedArray(8192, TENURED)->ToObjectChecked(); 1442 HEAP->AllocateFixedArray(8192, TENURED)->ToObjectChecked();
1443 CHECK_EQ(initial_size + i * filler_size, 1443 CHECK_EQ(initial_size + i * filler_size,
1444 static_cast<int>(HEAP->SizeOfObjects())); 1444 static_cast<int>(HEAP->SizeOfObjects()));
1445 } 1445 }
1446 } 1446 }
1447 1447
1448 // The heap size should go back to initial size after a full GC, even 1448 // The heap size should go back to initial size after a full GC, even
1449 // though sweeping didn't finish yet. 1449 // though sweeping didn't finish yet.
1450 HEAP->CollectAllGarbage(Heap::kNoGCFlags); 1450 HEAP->CollectAllGarbage(Heap::kNoGCFlags);
1451 1451
1452 // Normally sweeping would not be complete here, but no guarantees. 1452 // Normally sweeping would not be complete here, but no guarantees.
1453 1453
1454 CHECK_EQ(initial_size, static_cast<int>(HEAP->SizeOfObjects())); 1454 CHECK_EQ(initial_size, static_cast<int>(HEAP->SizeOfObjects()));
1455 1455
1456 // Advancing the sweeper step-wise should not change the heap size. 1456 // Advancing the sweeper step-wise should not change the heap size.
1457 while (!HEAP->old_pointer_space()->IsSweepingComplete()) { 1457 while (!HEAP->old_pointer_space()->IsLazySweepingComplete()) {
1458 HEAP->old_pointer_space()->AdvanceSweeper(KB); 1458 HEAP->old_pointer_space()->AdvanceSweeper(KB);
1459 CHECK_EQ(initial_size, static_cast<int>(HEAP->SizeOfObjects())); 1459 CHECK_EQ(initial_size, static_cast<int>(HEAP->SizeOfObjects()));
1460 } 1460 }
1461 } 1461 }
1462 1462
1463 1463
1464 TEST(TestSizeOfObjectsVsHeapIteratorPrecision) { 1464 TEST(TestSizeOfObjectsVsHeapIteratorPrecision) {
1465 InitializeVM(); 1465 InitializeVM();
1466 HEAP->EnsureHeapIsIterable(); 1466 HEAP->EnsureHeapIsIterable();
1467 intptr_t size_of_objects_1 = HEAP->SizeOfObjects(); 1467 intptr_t size_of_objects_1 = HEAP->SizeOfObjects();
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2829 // Now optimize the function so that it is taken off the candidate list. 2829 // Now optimize the function so that it is taken off the candidate list.
2830 { 2830 {
2831 HandleScope inner_scope; 2831 HandleScope inner_scope;
2832 CompileRun("%OptimizeFunctionOnNextCall(f); f(3);"); 2832 CompileRun("%OptimizeFunctionOnNextCall(f); f(3);");
2833 } 2833 }
2834 2834
2835 // This cycle will bust the heap and subsequent cycles will go ballistic. 2835 // This cycle will bust the heap and subsequent cycles will go ballistic.
2836 HEAP->CollectAllGarbage(Heap::kNoGCFlags); 2836 HEAP->CollectAllGarbage(Heap::kNoGCFlags);
2837 HEAP->CollectAllGarbage(Heap::kNoGCFlags); 2837 HEAP->CollectAllGarbage(Heap::kNoGCFlags);
2838 } 2838 }
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