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17a74ddd3d
PR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <limits>
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#include "src/heap/gc-idle-time-handler.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace v8 {
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namespace internal {
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namespace {
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class GCIdleTimeHandlerTest : public ::testing::Test {
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public:
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GCIdleTimeHandlerTest() = default;
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~GCIdleTimeHandlerTest() override = default;
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GCIdleTimeHandler* handler() { return &handler_; }
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GCIdleTimeHeapState DefaultHeapState() {
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GCIdleTimeHeapState result;
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result.incremental_marking_stopped = false;
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result.size_of_objects = kSizeOfObjects;
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return result;
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}
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static const size_t kSizeOfObjects = 100 * MB;
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static const size_t kMarkCompactSpeed = 200 * KB;
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private:
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GCIdleTimeHandler handler_;
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};
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} // namespace
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TEST_F(GCIdleTimeHandlerTest, IncrementalMarking1) {
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if (!handler()->Enabled()) return;
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GCIdleTimeHeapState heap_state = DefaultHeapState();
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double idle_time_ms = 10;
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EXPECT_EQ(GCIdleTimeAction::kIncrementalStep,
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handler()->Compute(idle_time_ms, heap_state));
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}
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TEST_F(GCIdleTimeHandlerTest, NotEnoughTime) {
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if (!handler()->Enabled()) return;
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GCIdleTimeHeapState heap_state = DefaultHeapState();
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heap_state.incremental_marking_stopped = true;
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size_t speed = kMarkCompactSpeed;
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double idle_time_ms = static_cast<double>(kSizeOfObjects / speed - 1);
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EXPECT_EQ(GCIdleTimeAction::kDone,
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handler()->Compute(idle_time_ms, heap_state));
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}
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TEST_F(GCIdleTimeHandlerTest, DoNotStartIncrementalMarking) {
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if (!handler()->Enabled()) return;
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GCIdleTimeHeapState heap_state = DefaultHeapState();
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heap_state.incremental_marking_stopped = true;
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double idle_time_ms = 10.0;
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EXPECT_EQ(GCIdleTimeAction::kDone,
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handler()->Compute(idle_time_ms, heap_state));
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}
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TEST_F(GCIdleTimeHandlerTest, ContinueAfterStop) {
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if (!handler()->Enabled()) return;
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GCIdleTimeHeapState heap_state = DefaultHeapState();
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heap_state.incremental_marking_stopped = true;
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double idle_time_ms = 10.0;
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EXPECT_EQ(GCIdleTimeAction::kDone,
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handler()->Compute(idle_time_ms, heap_state));
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heap_state.incremental_marking_stopped = false;
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EXPECT_EQ(GCIdleTimeAction::kIncrementalStep,
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handler()->Compute(idle_time_ms, heap_state));
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}
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TEST_F(GCIdleTimeHandlerTest, DoneIfNotMakingProgressOnIncrementalMarking) {
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if (!handler()->Enabled()) return;
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// Regression test for crbug.com/489323.
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GCIdleTimeHeapState heap_state = DefaultHeapState();
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// Simulate incremental marking stopped and not eligible to start.
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heap_state.incremental_marking_stopped = true;
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double idle_time_ms = 10.0;
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// We should return kDone if we cannot start incremental marking.
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EXPECT_EQ(GCIdleTimeAction::kDone,
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handler()->Compute(idle_time_ms, heap_state));
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}
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} // namespace internal
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} // namespace v8
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