78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
#include "thread_pool.hpp"
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#include <iostream>
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#include <boost/multiprecision/cpp_int.hpp>
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#include <boost/type_index.hpp>
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///////////////////////////////////////////////////////////////////////////////////////////////////////////
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//////////////////// functions for testing & test zone ////////////////////
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///////////////////////////////////////////////////////////////////////////////////////////////////////////
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boost::multiprecision::cpp_int mp_factorial(unsigned long long int number)
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{
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boost::multiprecision::cpp_int num = number;
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for (unsigned long long int i = number; i > 1; --i)
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{
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num *=(--number);
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}
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return num;
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}
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void simpleTask()
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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}
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void function_vs_packaged_task_test(thread_pool &tp, const unsigned short TIMES = 10000)
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{
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namespace ch = std::chrono;
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namespace mp = boost::multiprecision;
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auto fstart = ch::high_resolution_clock::now();
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for (int j = 0; j < TIMES; ++j)
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{
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tp.add_task(simpleTask);
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}
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auto fdur = ch::high_resolution_clock::now() - fstart;
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auto pt = std::packaged_task<void()>(simpleTask);
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auto pstart = ch::high_resolution_clock::now();
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for (int j = 0; j < TIMES; ++j)
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{
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tp.add_task(pt);
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}
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auto pdur = ch::high_resolution_clock::now() - pstart;
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std::cout << "Function: " << ch::duration_cast<ch::microseconds>(fdur).count() <<
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std::endl << "Packaged task: " << ch::duration_cast<ch::microseconds>(pdur).count() << std::endl;
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}
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void factorial_test(thread_pool& tp, unsigned long long number)
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{
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std::packaged_task<boost::multiprecision::cpp_int()> pt(std::bind(mp_factorial, number-1));
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tp.add_task(pt);
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auto fu1 = tp.add_task(mp_factorial, number);
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auto fu2 = pt.get_future();
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std::cout << "Results for n & n-1: " << fu1.get() << " " << fu2.get() << std::endl;
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std::cout << "With " << tp.get_thread_num() << " threads" << std::endl;
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std::cout << "Type of future: " << boost::typeindex::type_id_with_cvr<decltype(fu1)>().pretty_name() << std::endl;
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}
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void boost_vs_me_test(thread_pool& tp)
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{ /* TODO */ }
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int main(void)
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{
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thread_pool tp(4);
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factorial_test(tp, 6);
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function_vs_packaged_task_test(tp, 10000);
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return 0;
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} |