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// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0
// DeepSpeed Team
#pragma once
#ifdef _WIN32
#include <windows.h>
#else
#include <time.h>
#endif
#ifdef _WIN32
class Stopwatch {
private:
double m_total_time;
LARGE_INTEGER m_start_time;
public:
Stopwatch() { m_total_time = 0.0; }
~Stopwatch() {}
void Reset() { m_total_time = 0.0; }
void Start() { QueryPerformanceCounter(&m_start_time); }
void Restart()
{
m_total_time = 0.0;
QueryPerformanceCounter(&m_start_time);
}
void Stop()
{
LARGE_INTEGER frequency;
LARGE_INTEGER stop_time;
QueryPerformanceFrequency(&frequency);
QueryPerformanceCounter(&stop_time);
m_total_time +=
((double)(stop_time.QuadPart - m_start_time.QuadPart) / (double)frequency.QuadPart);
}
double GetTimeInSeconds() { return m_total_time; }
};
#else
class Stopwatch {
private:
double m_total_time;
struct timespec m_start_time;
bool m_is_started;
public:
Stopwatch()
{
m_total_time = 0.0;
m_is_started = false;
}
~Stopwatch() {}
void Reset() { m_total_time = 0.0; }
void Start()
{
clock_gettime(CLOCK_MONOTONIC, &m_start_time);
m_is_started = true;
}
void Restart()
{
m_total_time = 0.0;
clock_gettime(CLOCK_MONOTONIC, &m_start_time);
m_is_started = true;
}
void Stop()
{
if (m_is_started) {
m_is_started = false;
struct timespec end_time;
clock_gettime(CLOCK_MONOTONIC, &end_time);
m_total_time += (double)(end_time.tv_sec - m_start_time.tv_sec) +
(double)(end_time.tv_nsec - m_start_time.tv_nsec) / 1e9;
}
}
double GetTimeInSeconds()
{
if (m_is_started) {
Stop();
Start();
}
return m_total_time;
}
};
#endif
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