mirror of https://github.com/alibaba/MNN.git
72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
//
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// AutoTime.cpp
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// MNN
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//
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// Created by MNN on 2018/07/14.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#include <stdlib.h>
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#include <string.h>
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#if defined(_MSC_VER)
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#include <Windows.h>
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#else
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#include <sys/time.h>
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#endif
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#include <MNN/AutoTime.hpp>
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#include "core/Macro.h"
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namespace MNN {
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Timer::Timer() {
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reset();
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}
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Timer::~Timer() {
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// do nothing
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}
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void Timer::reset() {
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#if defined(_MSC_VER)
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LARGE_INTEGER time, freq;
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QueryPerformanceFrequency(&freq);
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QueryPerformanceCounter(&time);
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uint64_t sec = time.QuadPart / freq.QuadPart;
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uint64_t usec = (time.QuadPart % freq.QuadPart) * 1000000 / freq.QuadPart;
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mLastResetTime = sec * 1000000 + usec;
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#else
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struct timeval Current;
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gettimeofday(&Current, nullptr);
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mLastResetTime = Current.tv_sec * 1000000 + Current.tv_usec;
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#endif
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}
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uint64_t Timer::durationInUs() {
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#if defined(_MSC_VER)
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LARGE_INTEGER time, freq;
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QueryPerformanceCounter(&time);
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QueryPerformanceFrequency(&freq);
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uint64_t sec = time.QuadPart / freq.QuadPart;
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uint64_t usec = (time.QuadPart % freq.QuadPart) * 1000000 / freq.QuadPart;
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auto lastTime = sec * 1000000 + usec;
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#else
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struct timeval Current;
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gettimeofday(&Current, nullptr);
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auto lastTime = Current.tv_sec * 1000000 + Current.tv_usec;
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#endif
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return lastTime - mLastResetTime;
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}
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AutoTime::AutoTime(int line, const char* func) : Timer() {
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mName = ::strdup(func);
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mLine = line;
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}
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AutoTime::~AutoTime() {
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auto timeInUs = durationInUs();
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MNN_PRINT("%s, %d, cost time: %f ms\n", mName, mLine, (float)timeInUs / 1000.0f);
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free(mName);
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}
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} // namespace MNN
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