Medusa Slockbower
7c2f89b331
- Framework for Vulkan context - Fixed a bug with dynarray where if `resize()` shrinks the array, destructors are not called. - Fixed grammar issues with the containers library and added property tables to existing data structures.
140 lines
4.2 KiB
C++
140 lines
4.2 KiB
C++
// =====================================================================================================================
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// fennec, a free and open source game engine
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// Copyright © 2025 Medusa Slockbower
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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// =====================================================================================================================
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///
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/// \file test_threading.h
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/// \brief
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///
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///
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/// \details
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/// \author Medusa Slockbower
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///
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/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
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///
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///
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#ifndef FENNEC_TEST_THREADING_H
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#define FENNEC_TEST_THREADING_H
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#include <chrono>
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#include <fennec/threading/atomic.h>
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#include <fennec/threading/lock_guard.h>
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#include <fennec/threading/mpscq.h>
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#include <fennec/threading/mutex.h>
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#include <fennec/threading/thread.h>
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namespace fennec::test
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{
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inline void fennec_test_threading_test_atomic(atomic<size_t>* test_atomic, size_t N = 1000) {
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for (size_t i = 0; i < N; ++i) {
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++*test_atomic;
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}
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}
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template<size_t ThreadsV>
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inline void fennec_test_threading_run_test_atomic(array<thread, ThreadsV>& threads, size_t N = 1000) {
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atomic<size_t> test = 0;
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for (thread& t : threads) {
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t = thread(fennec_test_threading_test_atomic, &test, N);
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}
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for (thread& t : threads) {
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t.join();
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}
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fennec_test_run(test.load(), N * ThreadsV);
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}
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inline void fennec_test_threading_test_mutex(size_t* var, mutex* m, size_t N = 1000) {
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for (size_t i = 0; i < N; ++i) {
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lock_guard guard(*m);
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++*var;
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}
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}
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template<size_t ThreadsV>
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inline void fennec_test_threading_run_test_mutex(array<thread, ThreadsV>& threads, size_t N = 1000) {
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mutex m;
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size_t test = 0;
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for (thread& t : threads) {
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t = thread(fennec_test_threading_test_mutex, &test, &m, N);
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}
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for (thread& t : threads) {
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t.join();
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}
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fennec_test_run(test, N * ThreadsV);
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}
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inline void fennec_test_threading_test_mpscq_producer(mpscq<size_t>* queue, size_t N = 1000) {
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for (size_t i = 0; i < N; ++i) {
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queue->emplace(1);
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}
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}
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inline void fennec_test_threading_test_mpscq_consumer(mpscq<size_t>* queue, atomic<size_t>* res, atomic<bool>* done) {
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while (not done->load() or not queue->is_empty()) {
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unique_ptr<size_t> ptr = queue->pop();
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if (ptr) {
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*res += *ptr;
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}
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}
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}
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template<size_t ThreadsV>
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inline void fennec_test_threading_run_test_mpscq(array<thread, ThreadsV>& threads, size_t N = 1000) {
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mpscq<size_t> queue(N * ThreadsV);
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for (size_t i = 1; i < ThreadsV; ++i) {
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threads[i] = thread(fennec_test_threading_test_mpscq_producer, &queue, N);
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}
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atomic<size_t> test;
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atomic<bool> done;
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threads[0] = thread(fennec_test_threading_test_mpscq_consumer, &queue, &test, &done);
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for (size_t i = 1; i < ThreadsV; ++i) {
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threads[i].join();
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}
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done.store(true);
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threads[0].join();
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fennec_test_run(test.load(), N * (ThreadsV - 1));
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}
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template<typename ReturnT, typename...ParamsT, typename...ArgsT>
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inline double fennec_test_threading_timed(ReturnT (func)(ParamsT...), ArgsT&&...args) {
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auto start = std::chrono::high_resolution_clock::now();
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func(fennec::forward<ArgsT>(args)...);
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return std::chrono::duration<double>(std::chrono::high_resolution_clock::now() - start).count();
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}
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inline void fennec_test_threading() {
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static constexpr size_t N = 100000, threads = 8;
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array<thread, threads> arr;
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std::cout << fennec_test_threading_timed(fennec_test_threading_run_test_atomic<threads>, arr, N) << "s\n";
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std::cout << fennec_test_threading_timed(fennec_test_threading_run_test_mutex<threads>, arr, N) << "s\n";
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std::cout << fennec_test_threading_timed(fennec_test_threading_run_test_mpscq<threads>, arr, N) << "s\n";
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}
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}
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#endif // FENNEC_TEST_THREADING_H
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