1 /**
2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <gtest/gtest.h>
17
18 #include <vector>
19
20 #include "assembly-parser.h"
21 #include "runtime/include/method.h"
22 #include "runtime/include/runtime.h"
23
24 #include "runtime/compiler.h"
25
26 namespace panda::test {
27
28 class CompilerThreadPoolTest : public testing::Test {
29 public:
30 static const size_t METHOD_COUNT = 32;
CompilerThreadPoolTest()31 CompilerThreadPoolTest()
32 {
33 RuntimeOptions options;
34 options.SetShouldLoadBootPandaFiles(false);
35 options.SetShouldInitializeIntrinsics(false);
36 Runtime::Create(options);
37 thread_ = panda::MTManagedThread::GetCurrent();
38 thread_->ManagedCodeBegin();
39 }
40
SetUp()41 void SetUp() override
42 {
43 #ifndef PANDA_COMPILER_ENABLE
44 GTEST_SKIP();
45 #endif
46 }
47
~CompilerThreadPoolTest()48 ~CompilerThreadPoolTest()
49 {
50 thread_->ManagedCodeEnd();
51 Runtime::Destroy();
52 }
53
54 protected:
55 panda::MTManagedThread *thread_;
56 };
57
GetMethod(Class * klass,size_t num)58 Method *GetMethod(Class *klass, size_t num)
59 {
60 PandaStringStream ss;
61 ss << "f" << num;
62 Method *method = klass->GetDirectMethod(utf::CStringAsMutf8(ss.str().c_str()));
63 return method;
64 }
65
GetClass()66 Class *GetClass()
67 {
68 pandasm::Parser p;
69
70 PandaStringStream ss;
71
72 for (size_t i = 0; i < CompilerThreadPoolTest::METHOD_COUNT; i++) {
73 ss << ".function void f" << i << "() {" << std::endl;
74 ss << " return.void" << std::endl;
75 ss << "}" << std::endl;
76 }
77
78 auto source = ss.str();
79 auto res = p.Parse(source.c_str());
80 auto pf = pandasm::AsmEmitter::Emit(res.Value());
81
82 ClassLinker *class_linker = Runtime::GetCurrent()->GetClassLinker();
83 class_linker->AddPandaFile(std::move(pf));
84
85 PandaString descriptor;
86
87 return class_linker->GetExtension(panda_file::SourceLang::PANDA_ASSEMBLY)
88 ->GetClass(ClassHelper::GetDescriptor(utf::CStringAsMutf8("_GLOBAL"), &descriptor));
89 }
90
CompileMethods(int initial_number_of_threads,size_t scaled_number_of_threads)91 void CompileMethods(int initial_number_of_threads, size_t scaled_number_of_threads)
92 {
93 auto *klass = GetClass();
94 ASSERT_NE(klass, nullptr);
95
96 auto *compiler = static_cast<Compiler *>(PandaVM::GetCurrent()->GetCompiler());
97
98 compiler->ScaleThreadPool(initial_number_of_threads);
99
100 for (size_t i = 0; i < CompilerThreadPoolTest::METHOD_COUNT; i++) {
101 Method *method = GetMethod(klass, i);
102 ASSERT_NE(method, nullptr);
103 compiler->CompileMethod(method, i, false);
104 }
105
106 compiler->ScaleThreadPool(scaled_number_of_threads);
107
108 for (;;) {
109 bool is_completed = true;
110 for (size_t i = 0; i < CompilerThreadPoolTest::METHOD_COUNT; i++) {
111 Method *method = GetMethod(klass, i);
112 if (method->GetCompilationStatus() == Method::NOT_COMPILED) {
113 // In case queue was full.
114 compiler->CompileMethod(method, i, false);
115 }
116 if (method->GetCompilationStatus() != Method::COMPILED) {
117 is_completed = false;
118 }
119 }
120 if (is_completed) {
121 break;
122 }
123 }
124 }
125
TEST_F(CompilerThreadPoolTest,SeveralThreads)126 TEST_F(CompilerThreadPoolTest, SeveralThreads)
127 {
128 constexpr size_t NUMBER_OF_THREADS = 8;
129 CompileMethods(NUMBER_OF_THREADS, NUMBER_OF_THREADS);
130 }
131
TEST_F(CompilerThreadPoolTest,ReduceThreads)132 TEST_F(CompilerThreadPoolTest, ReduceThreads)
133 {
134 constexpr size_t NUMBER_OF_THREADS = 8;
135 constexpr size_t NUMBER_OF_THREADS_SCALED = 4;
136 CompileMethods(NUMBER_OF_THREADS, NUMBER_OF_THREADS_SCALED);
137 }
138
TEST_F(CompilerThreadPoolTest,IncreaseThreads)139 TEST_F(CompilerThreadPoolTest, IncreaseThreads)
140 {
141 constexpr size_t NUMBER_OF_THREADS = 4;
142 constexpr size_t NUMBER_OF_THREADS_SCALED = 8;
143 CompileMethods(NUMBER_OF_THREADS, NUMBER_OF_THREADS_SCALED);
144 }
145
146 } // namespace panda::test
147