关于计算程序耗时的几个方法

代码多少钱一两

已于 2022-11-24 16:23:05 修改

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文章标签： c++ 算法开发语言

于 2022-10-05 11:18:22 首次发布

本文链接：https://blog.youkuaiyun.com/handily_1/article/details/127160177

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1. 一个来自r3live的timer tool工具：

一个功能丰富的头文件"tools_timer.hpp":


#ifndef __TIME_TICKER_HPP__
#define __TIME_TICKER_HPP__

#define TOOLS_TIMER_VERSION       "V2.0"
#define TOOLS_TIMER_VERSION_INFO  "Add timer logger"

#include <chrono>
#include <iostream>
#include <map>
#include <vector>
#include <string>
#include <sstream>
#include <stdlib.h>
#include <thread>
#include <time.h>
namespace Common_tools // Commond tools
{
   

static std::chrono::time_point< std::chrono::system_clock > timer_now()
{
   
    return std::chrono::system_clock::now();
}

static std::chrono::time_point< std::chrono::system_clock > g_commont_tools_timer_first_tic =  std::chrono::system_clock::now();

static inline double timer_tic_ms()
{
   
  std::chrono::duration<double> time_diff(timer_now() - g_commont_tools_timer_first_tic);
  return time_diff.count()*1000.0;
}

static inline double timer_tic()
{
   
  std::chrono::duration<double> time_diff(timer_now() - g_commont_tools_timer_first_tic);
  return time_diff.count();
}

static inline std::string get_current_date_str()
{
   
    const time_t     t = time( NULL );
    const struct tm *tmp = localtime( &t );
    char szDate[ 256 ];
    strftime( szDate, 80, "%Y/%m/%d", tmp );
    return std::string( szDate );
}

static inline std::string get_current_time_str( )
{
   
    const time_t     t = time( NULL )