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1 // Copyright 2015 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // TODO(jochen): Remove this after the setting is turned on globally. | |
6 #define V8_IMMINENT_DEPRECATION_WARNINGS | |
7 | |
8 #include <stdlib.h> | |
9 | |
10 #ifdef __linux__ | |
11 #include <errno.h> | |
12 #include <fcntl.h> | |
13 #include <sys/stat.h> | |
14 #include <sys/types.h> | |
15 #include <unistd.h> | |
16 #endif | |
17 | |
18 #include <utility> | |
19 | |
20 #include "src/v8.h" | |
21 | |
22 #include "src/full-codegen/full-codegen.h" | |
23 #include "src/global-handles.h" | |
24 #include "test/cctest/cctest.h" | |
25 | |
26 using v8::IdleTask; | |
27 using v8::Task; | |
28 using v8::Isolate; | |
29 | |
30 namespace v8 { | |
31 namespace internal { | |
32 | |
33 class MockPlatform : public v8::Platform { | |
34 public: | |
35 explicit MockPlatform(v8::Platform* platform) | |
36 : platform_(platform), idle_task_(nullptr), delayed_task_(nullptr) {} | |
37 virtual ~MockPlatform() { | |
38 delete idle_task_; | |
39 delete delayed_task_; | |
40 } | |
41 | |
42 void CallOnBackgroundThread(Task* task, | |
43 ExpectedRuntime expected_runtime) override { | |
44 platform_->CallOnBackgroundThread(task, expected_runtime); | |
45 } | |
46 | |
47 void CallOnForegroundThread(v8::Isolate* isolate, Task* task) override { | |
48 platform_->CallOnForegroundThread(isolate, task); | |
49 } | |
50 | |
51 void CallDelayedOnForegroundThread(v8::Isolate* isolate, Task* task, | |
52 double delay_in_seconds) override { | |
53 if (delayed_task_ != nullptr) { | |
54 delete delayed_task_; | |
55 } | |
56 delayed_task_ = task; | |
57 } | |
58 | |
59 double MonotonicallyIncreasingTime() override { | |
60 return platform_->MonotonicallyIncreasingTime(); | |
61 } | |
62 | |
63 void CallIdleOnForegroundThread(v8::Isolate* isolate, | |
64 IdleTask* task) override { | |
65 CHECK(nullptr == idle_task_); | |
66 idle_task_ = task; | |
67 } | |
68 | |
69 bool IdleTasksEnabled(v8::Isolate* isolate) override { return true; } | |
70 | |
71 bool PendingIdleTask() { return idle_task_ != nullptr; } | |
72 | |
73 void PerformIdleTask(double idle_time_in_seconds) { | |
74 IdleTask* task = idle_task_; | |
75 idle_task_ = nullptr; | |
76 task->Run(MonotonicallyIncreasingTime() + idle_time_in_seconds); | |
77 delete task; | |
78 } | |
79 | |
80 bool PendingDelayedTask() { return delayed_task_ != nullptr; } | |
81 | |
82 void PerformDelayedTask() { | |
83 Task* task = delayed_task_; | |
84 delayed_task_ = nullptr; | |
85 task->Run(); | |
86 delete task; | |
87 } | |
88 | |
89 private: | |
90 v8::Platform* platform_; | |
91 IdleTask* idle_task_; | |
92 Task* delayed_task_; | |
93 }; | |
94 | |
95 | |
96 TEST(IncrementalMarkingUsingIdleTasks) { | |
97 if (!i::FLAG_incremental_marking) return; | |
98 CcTest::InitializeVM(); | |
99 v8::Platform* old_platform = i::V8::GetCurrentPlatform(); | |
100 MockPlatform platform(old_platform); | |
101 i::V8::SetPlatformForTesting(&platform); | |
102 SimulateFullSpace(CcTest::heap()->old_space()); | |
103 i::IncrementalMarking* marking = CcTest::heap()->incremental_marking(); | |
104 marking->Stop(); | |
105 marking->Start(); | |
106 CHECK(platform.PendingIdleTask()); | |
107 const double kLongIdleTimeInSeconds = 1; | |
108 const double kShortIdleTimeInSeconds = 0.010; | |
109 const int kShortStepCount = 10; | |
110 for (int i = 0; i < kShortStepCount && platform.PendingIdleTask(); i++) { | |
111 platform.PerformIdleTask(kShortIdleTimeInSeconds); | |
112 } | |
113 while (platform.PendingIdleTask()) { | |
114 platform.PerformIdleTask(kLongIdleTimeInSeconds); | |
115 } | |
116 CHECK(marking->IsStopped()); | |
117 i::V8::SetPlatformForTesting(old_platform); | |
118 } | |
119 | |
120 | |
121 TEST(IncrementalMarkingUsingIdleTasksAfterGC) { | |
122 if (!i::FLAG_incremental_marking) return; | |
123 CcTest::InitializeVM(); | |
124 v8::Platform* old_platform = i::V8::GetCurrentPlatform(); | |
125 MockPlatform platform(old_platform); | |
126 i::V8::SetPlatformForTesting(&platform); | |
127 SimulateFullSpace(CcTest::heap()->old_space()); | |
128 CcTest::heap()->CollectAllGarbage(); | |
129 i::IncrementalMarking* marking = CcTest::heap()->incremental_marking(); | |
130 marking->Stop(); | |
131 marking->Start(); | |
132 CHECK(platform.PendingIdleTask()); | |
133 const double kLongIdleTimeInSeconds = 1; | |
134 const double kShortIdleTimeInSeconds = 0.010; | |
135 const int kShortStepCount = 10; | |
136 for (int i = 0; i < kShortStepCount && platform.PendingIdleTask(); i++) { | |
137 platform.PerformIdleTask(kShortIdleTimeInSeconds); | |
138 } | |
139 while (platform.PendingIdleTask()) { | |
140 platform.PerformIdleTask(kLongIdleTimeInSeconds); | |
141 } | |
142 CHECK(marking->IsStopped()); | |
143 i::V8::SetPlatformForTesting(old_platform); | |
144 } | |
145 | |
146 | |
147 TEST(IncrementalMarkingUsingDelayedTasks) { | |
148 if (!i::FLAG_incremental_marking) return; | |
149 CcTest::InitializeVM(); | |
150 v8::Platform* old_platform = i::V8::GetCurrentPlatform(); | |
151 MockPlatform platform(old_platform); | |
152 i::V8::SetPlatformForTesting(&platform); | |
153 SimulateFullSpace(CcTest::heap()->old_space()); | |
154 i::IncrementalMarking* marking = CcTest::heap()->incremental_marking(); | |
155 marking->Stop(); | |
156 marking->Start(); | |
157 CHECK(platform.PendingIdleTask()); | |
158 // The delayed task should be a no-op if the idle task makes progress. | |
159 const int kIgnoredDelayedTaskStepCount = 1000; | |
160 for (int i = 0; i < kIgnoredDelayedTaskStepCount; i++) { | |
161 // Dummy idle task progress. | |
162 marking->incremental_marking_job()->NotifyIdleTaskProgress(); | |
163 CHECK(platform.PendingDelayedTask()); | |
164 platform.PerformDelayedTask(); | |
165 } | |
166 // Once we stop notifying idle task progress, the delayed tasks | |
167 // should finish marking. | |
168 while (!marking->IsStopped() && platform.PendingDelayedTask()) { | |
169 platform.PerformDelayedTask(); | |
170 } | |
171 // There could be pending delayed task from memory reducer after GC finishes. | |
172 CHECK(marking->IsStopped()); | |
173 i::V8::SetPlatformForTesting(old_platform); | |
174 } | |
175 | |
176 } // namespace internal | |
177 } // namespace v8 | |
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