58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
#pragma once
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#include <functional>
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#include <chrono>
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#include <iostream>
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#include <sstream>
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#include <iomanip>
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#include <locale>
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namespace utils
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{
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template<typename T>
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std::string format(const T& value)
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{
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static std::locale loc("");
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std::stringstream ss;
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ss.imbue(loc);
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ss << value;
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return ss.str();
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}
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inline void bench(const std::string& fn_name, const std::chrono::milliseconds &duration, const std::function<void() >& fn)
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{
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using namespace std::chrono;
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typedef steady_clock the_clock;
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size_t counter = 0;
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seconds print_interval(1);
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auto start_time = the_clock::now();
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auto lastPrintTime = start_time;
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while (true)
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{
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fn();
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++counter;
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auto now = the_clock::now();
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if (now - start_time >= duration)
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break;
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auto p = now - lastPrintTime;
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if (now - lastPrintTime >= print_interval)
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{
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std::cout << fn_name << ": " << format(counter) << " per sec" << std::endl;
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counter = 0;
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lastPrintTime = the_clock::now();
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}
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}
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}
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inline void bench(const std::string& fn_name, const std::function<void() >& fn)
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{
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using namespace std::chrono;
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auto start = steady_clock::now();
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fn();
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auto delta = steady_clock::now() - start;
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std::cout << fn_name << ": " << duration_cast<milliseconds>(delta).count() << " ms" << std::endl;
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}
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} |