119 lines
2.6 KiB
C++
119 lines
2.6 KiB
C++
// Copyright (c) 2011-2016 The Cryptonote developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#pragma once
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#include <iostream>
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#include <stdint.h>
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#include <boost/chrono.hpp>
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class performance_timer
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{
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public:
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typedef boost::chrono::high_resolution_clock clock;
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performance_timer()
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{
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m_base = clock::now();
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}
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void start()
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{
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m_start = clock::now();
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}
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int elapsed_ms()
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{
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clock::duration elapsed = clock::now() - m_start;
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return static_cast<int>(boost::chrono::duration_cast<boost::chrono::milliseconds>(elapsed).count());
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}
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private:
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clock::time_point m_base;
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clock::time_point m_start;
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};
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template <typename T>
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class test_runner
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{
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public:
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test_runner()
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: m_elapsed(0)
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{
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}
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bool run()
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{
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T test;
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if (!test.init())
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return false;
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performance_timer timer;
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timer.start();
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warm_up();
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std::cout << "Warm up: " << timer.elapsed_ms() << " ms" << std::endl;
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timer.start();
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for (size_t i = 0; i < T::loop_count; ++i)
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{
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if (!test.test())
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return false;
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}
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m_elapsed = timer.elapsed_ms();
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return true;
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}
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int elapsed_time() const { return m_elapsed; }
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int time_per_call() const
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{
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static_assert(0 < T::loop_count, "T::loop_count must be greater than 0");
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return m_elapsed / T::loop_count;
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}
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private:
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/**
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* Warm up processor core, enabling turbo boost, etc.
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*/
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uint64_t warm_up()
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{
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const size_t warm_up_rounds = 1000 * 1000 * 1000;
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m_warm_up = 0;
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for (size_t i = 0; i < warm_up_rounds; ++i)
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{
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++m_warm_up;
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}
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return m_warm_up;
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}
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private:
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volatile uint64_t m_warm_up; ///<! This field is intended for preclude compiler optimizations
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int m_elapsed;
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};
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template <typename T>
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void run_test(const char* test_name)
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{
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test_runner<T> runner;
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if (runner.run())
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{
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std::cout << test_name << " - OK:\n";
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std::cout << " loop count: " << T::loop_count << '\n';
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std::cout << " elapsed: " << runner.elapsed_time() << " ms\n";
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std::cout << " time per call: " << runner.time_per_call() << " ms/call\n" << std::endl;
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}
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else
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{
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std::cout << test_name << " - FAILED" << std::endl;
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}
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}
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#define QUOTEME(x) #x
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#define TEST_PERFORMANCE0(test_class) run_test< test_class >(QUOTEME(test_class))
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#define TEST_PERFORMANCE1(test_class, a0) run_test< test_class<a0> >(QUOTEME(test_class<a0>))
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#define TEST_PERFORMANCE2(test_class, a0, a1) run_test< test_class<a0, a1> >(QUOTEME(test_class) "<" QUOTEME(a0) ", " QUOTEME(a1) ">")
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