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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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| 3013 CHECK_EQ(1, old_pointer_space->CountTotalPages()); | 3013 CHECK_EQ(1, old_pointer_space->CountTotalPages()); |
| 3014 for (int i = 0; i < number_of_test_pages; i++) { | 3014 for (int i = 0; i < number_of_test_pages; i++) { |
| 3015 AlwaysAllocateScope always_allocate(isolate); | 3015 AlwaysAllocateScope always_allocate(isolate); |
| 3016 SimulateFullSpace(old_pointer_space); | 3016 SimulateFullSpace(old_pointer_space); |
| 3017 factory->NewFixedArray(1, TENURED); | 3017 factory->NewFixedArray(1, TENURED); |
| 3018 } | 3018 } |
| 3019 CHECK_EQ(number_of_test_pages + 1, old_pointer_space->CountTotalPages()); | 3019 CHECK_EQ(number_of_test_pages + 1, old_pointer_space->CountTotalPages()); |
| 3020 | 3020 |
| 3021 // Triggering one GC will cause a lot of garbage to be discovered but | 3021 // Triggering one GC will cause a lot of garbage to be discovered but |
| 3022 // even spread across all allocated pages. | 3022 // even spread across all allocated pages. |
| 3023 heap->CollectAllGarbage(Heap::kNoGCFlags, "triggered for preparation"); | 3023 heap->CollectAllGarbage(Heap::kAbortIncrementalMarkingMask, |
| 3024 "triggered for preparation"); |
| 3024 CHECK_GE(number_of_test_pages + 1, old_pointer_space->CountTotalPages()); | 3025 CHECK_GE(number_of_test_pages + 1, old_pointer_space->CountTotalPages()); |
| 3025 | 3026 |
| 3026 // Triggering subsequent GCs should cause at least half of the pages | 3027 // Triggering subsequent GCs should cause at least half of the pages |
| 3027 // to be released to the OS after at most two cycles. | 3028 // to be released to the OS after at most two cycles. |
| 3028 heap->CollectAllGarbage(Heap::kNoGCFlags, "triggered by test 1"); | 3029 heap->CollectAllGarbage(Heap::kNoGCFlags, "triggered by test 1"); |
| 3029 CHECK_GE(number_of_test_pages + 1, old_pointer_space->CountTotalPages()); | 3030 CHECK_GE(number_of_test_pages + 1, old_pointer_space->CountTotalPages()); |
| 3030 heap->CollectAllGarbage(Heap::kNoGCFlags, "triggered by test 2"); | 3031 heap->CollectAllGarbage(Heap::kNoGCFlags, "triggered by test 2"); |
| 3031 CHECK_GE(number_of_test_pages + 1, old_pointer_space->CountTotalPages() * 2); | 3032 CHECK_GE(number_of_test_pages + 1, old_pointer_space->CountTotalPages() * 2); |
| 3032 | 3033 |
| 3033 // Triggering a last-resort GC should cause all pages to be released to the | 3034 // Triggering a last-resort GC should cause all pages to be released to the |
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| 4496 #ifdef DEBUG | 4497 #ifdef DEBUG |
| 4497 TEST(PathTracer) { | 4498 TEST(PathTracer) { |
| 4498 CcTest::InitializeVM(); | 4499 CcTest::InitializeVM(); |
| 4499 v8::HandleScope scope(CcTest::isolate()); | 4500 v8::HandleScope scope(CcTest::isolate()); |
| 4500 | 4501 |
| 4501 v8::Local<v8::Value> result = CompileRun("'abc'"); | 4502 v8::Local<v8::Value> result = CompileRun("'abc'"); |
| 4502 Handle<Object> o = v8::Utils::OpenHandle(*result); | 4503 Handle<Object> o = v8::Utils::OpenHandle(*result); |
| 4503 CcTest::i_isolate()->heap()->TracePathToObject(*o); | 4504 CcTest::i_isolate()->heap()->TracePathToObject(*o); |
| 4504 } | 4505 } |
| 4505 #endif // DEBUG | 4506 #endif // DEBUG |
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