156 lines
4.4 KiB
C++
156 lines
4.4 KiB
C++
// Copyright (c) 2014-2016, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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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(int scale = 1) 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 * scale / 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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const char *unit = "ms";
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int time_per_call = runner.time_per_call();
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if (time_per_call < 30000) {
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time_per_call = runner.time_per_call(1000);
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#ifdef _WIN32
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unit = "\xb5s";
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#else
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unit = "µs";
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#endif
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}
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std::cout << " time per call: " << time_per_call << " " << unit << "/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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#define TEST_PERFORMANCE3(test_class, a0, a1, a2) run_test< test_class<a0, a1, a2> >(QUOTEME(test_class) "<" QUOTEME(a0) ", " QUOTEME(a1) ", " QUOTEME(a2) ">")
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