LiteLoaderBDS-1.16.40/Tools/ScriptX/test/src/ThreadPoolTest.cc
2023-03-03 10:18:21 -08:00

126 lines
3.3 KiB
C++

/*
* Tencent is pleased to support the open source community by making ScriptX available.
* Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <array>
#include <atomic>
#include "test.h"
namespace script::utils::test {
static void handleMessage(Message& msg) {
auto* i = static_cast<std::atomic_int64_t*>(msg.ptr0);
(*i)++;
}
TEST(ThreadPool, Run) {
ThreadPool tp(2, std::make_unique<MessageQueue>(1000));
EXPECT_EQ(2, tp.workerCount());
auto i = std::make_unique<std::atomic_int64_t>();
constexpr auto max = 1000;
for (int j = 0; j < max; ++j) {
Message msg(handleMessage, nullptr);
msg.ptr0 = i.get();
tp.postMessage(msg);
}
tp.shutdown(false);
tp.awaitTermination();
EXPECT_EQ(max, i->load());
}
TEST(ThreadPool, MultiThreadRun) {
constexpr auto kWorkerCount = 2;
constexpr auto kProducerCount = 4;
constexpr auto max = 1000;
ThreadPool tp(kWorkerCount);
EXPECT_EQ(kWorkerCount, tp.workerCount());
auto i = std::make_unique<std::atomic_int64_t>();
std::array<std::unique_ptr<std::thread>, kProducerCount> p;
for (auto& t : p) {
t = std::make_unique<std::thread>([&]() {
for (int j = 0; j < max; ++j) {
Message msg(handleMessage, nullptr);
msg.ptr0 = i.get();
tp.postMessage(msg);
}
});
}
for (auto& t : p) {
t->join();
}
tp.shutdown(true);
EXPECT_EQ(max * kProducerCount, i->load());
}
TEST(ThreadPool, Benchmark) {
using std::chrono::duration_cast;
using std::chrono::milliseconds;
using std::chrono::steady_clock;
using std::chrono_literals::operator""ms;
constexpr auto kEnable = false;
constexpr auto kRunTime = 5000ms;
constexpr auto kWorkerThreads = 4;
constexpr auto kProducerThreads = 4;
// simple benchmark
if (!kEnable) return;
auto start = steady_clock::now();
ThreadPool tp(kWorkerThreads, std::make_unique<MessageQueue>(1000));
auto i = std::make_unique<std::atomic_int64_t>();
Message stopMsg([](auto& msg) { static_cast<ThreadPool*>(msg.ptr0)->shutdownNow(false); },
nullptr);
stopMsg.ptr0 = &tp;
tp.postMessage(stopMsg, kRunTime);
for (int j = 0; j < kProducerThreads; ++j) {
std::thread([&]() {
while (true) {
Message msg(handleMessage, nullptr);
msg.ptr0 = i.get();
try {
tp.postMessage(msg);
} catch (std::runtime_error&) {
break;
}
}
}).detach();
}
tp.awaitTermination();
// run time should be close to kRunTime
auto runTimeMillis = duration_cast<milliseconds>((steady_clock::now() - start)).count();
std::cout << "run time:" << runTimeMillis << "ms, " << i->load() << "ops"
<< " [" << i->load() * 1000 / static_cast<double>(runTimeMillis) << " ops/S]"
<< std::endl;
}
} // namespace script::utils::test