是否有一种内置的方法来测量Windows命令行上命令的执行时间?


当前回答

如果你安装了CMake,你可以运行下面的命令。

cmake -E time <the_command_to_measure_run_time>

其他回答

我使用免费软件“GS定时器”。

只需要像这样做一个批处理文件:

timer
yourapp.exe
timer /s

如果您需要一组时间,只需将timer /s的输出输出到.txt文件中。

你可以在这里得到它:Gammadyne的免费DOS实用程序


分辨率为0.1秒。

“精益和平均”计时器与区域格式,24小时和混合输入支持 调整Aacini的替换方法体,没有IF,只有一个FOR(我的区域修复)

1:文件timer.bat放置在%PATH%或当前目录的某处

@echo off & rem :AveYo: compact timer function with Regional format, 24-hours and mixed input support
if not defined timer_set (if not "%~1"=="" (call set "timer_set=%~1") else set "timer_set=%TIME: =0%") & goto :eof
(if not "%~1"=="" (call set "timer_end=%~1") else set "timer_end=%TIME: =0%") & setlocal EnableDelayedExpansion
for /f "tokens=1-6 delims=0123456789" %%i in ("%timer_end%%timer_set%") do (set CE=%%i&set DE=%%k&set CS=%%l&set DS=%%n)
set "TE=!timer_end:%DE%=%%100)*100+1!"     & set "TS=!timer_set:%DS%=%%100)*100+1!"
set/A "T=((((10!TE:%CE%=%%100)*60+1!%%100)-((((10!TS:%CS%=%%100)*60+1!%%100)" & set/A "T=!T:-=8640000-!"
set/A "cc=T%%100+100,T/=100,ss=T%%60+100,T/=60,mm=T%%60+100,hh=T/60+100"
set "value=!hh:~1!%CE%!mm:~1!%CE%!ss:~1!%DE%!cc:~1!" & if "%~2"=="" echo/!value!
endlocal & set "timer_end=%value%" & set "timer_set=" & goto :eof

用法: Timer & echo start_cmds & timeout /t 3 & echo end_cmds & Timer 计时器&计时器“23:23:23,00” 计时器“23:23:23,00”&计时器 计时器“13.23.23,00”&计时器“03:03:03.00” 定时器&定时器“0:00:00.00”no & CMD /v:on /c echo until midnight=!timer_end! 对于执行过程中不太可能但可能发生的时间格式更改,现在可以混合输入

2:函数:与批处理脚本绑定的定时器(示例用法如下):

@echo off
set "TIMER=call :timer" & rem short macro
echo.
echo EXAMPLE:
call :timer
timeout /t 3 >nul & rem Any process here..
call :timer
echo.
echo SHORT MACRO:
%TIMER% & timeout /t 1 & %TIMER% 
echo.
echo TEST INPUT:
set "start=22:04:04.58"
set "end=04.22.44,22"
echo %start% ~ start & echo %end% ~ end
call :timer "%start%"
call :timer "%end%"
echo.
%TIMER% & %TIMER% "00:00:00.00" no 
echo UNTIL MIDNIGHT: %timer_end%
echo.
pause 
exit /b

::要测试它,复制粘贴上面和下面的代码段

rem :AveYo: compact timer function with Regional format, 24-hours and mixed input support 
:timer Usage " call :timer [input - optional] [no - optional]" :i Result printed on second call, saved to timer_end 
if not defined timer_set (if not "%~1"=="" (call set "timer_set=%~1") else set "timer_set=%TIME: =0%") & goto :eof
(if not "%~1"=="" (call set "timer_end=%~1") else set "timer_end=%TIME: =0%") & setlocal EnableDelayedExpansion
for /f "tokens=1-6 delims=0123456789" %%i in ("%timer_end%%timer_set%") do (set CE=%%i&set DE=%%k&set CS=%%l&set DS=%%n)
set "TE=!timer_end:%DE%=%%100)*100+1!"     & set "TS=!timer_set:%DS%=%%100)*100+1!"
set/A "T=((((10!TE:%CE%=%%100)*60+1!%%100)-((((10!TS:%CS%=%%100)*60+1!%%100)" & set/A "T=!T:-=8640000-!"
set/A "cc=T%%100+100,T/=100,ss=T%%60+100,T/=60,mm=T%%60+100,hh=T/60+100"
set "value=!hh:~1!%CE%!mm:~1!%CE%!ss:~1!%DE%!cc:~1!" & if "%~2"=="" echo/!value!
endlocal & set "timer_end=%value%" & set "timer_set=" & goto :eof

CE,DE和CS,DS代表冒号结束,点结束和冒号集合,点集合-用于混合格式支持

这是一个单行程序,可以避免延迟展开,这可能会扰乱某些命令:

cmd /E /C "prompt $T$$ & echo.%TIME%$ & COMMAND_TO_MEASURE & for %Z in (.) do rem/ "

输出如下所示:

14:30:27.58元 ... 14:32:43.17雷姆/元

对于长期测试,将$T替换为$D、$T和%TIME%替换为%DATE%、%TIME%以包含日期。

要在批处理文件中使用,请将%%Z替换为%%Z。


更新

下面是一个改进的单行程序(也没有延迟展开):

cmd /E /C "prompt $D, $T$$ & (for %# in (.) do rem/ ) & COMMAND_TO_MEASURE & for %# in (.) do prompt"

输出如下所示:

2015/09/01, 14:30:27.58$ rem/ ... 2015/09/01, 14:32:43.17$ 提示

这种方法不包括在结果中实例化一个新的cmd的过程,也不包括提示命令。

因为其他人建议安装像免费软件和PowerShell这样的东西,你也可以安装Cygwin,它可以让你访问许多基本的Unix命令,比如time:

abe@abe-PC:~$ time sleep 5

real    0m5.012s
user    0m0.000s
sys 0m0.000s

不知道Cygwin增加了多少开销。

@echo off & setlocal

set start=%time%

REM Do stuff to be timed here.
REM Alternatively, uncomment the line below to be able to
REM pass in the command to be timed when running this script.
REM cmd /c %*

set end=%time%

REM Calculate time taken in seconds, to the hundredth of a second.
REM Assumes start time and end time will be on the same day.

set options="tokens=1-4 delims=:."

for /f %options% %%a in ("%start%") do (
    set /a start_s="(100%%a %% 100)*3600 + (100%%b %% 100)*60 + (100%%c %% 100)"
    set /a start_hs=100%%d %% 100
)

for /f %options% %%a in ("%end%") do (
    set /a end_s="(100%%a %% 100)*3600 + (100%%b %% 100)*60 + (100%%c %% 100)"
    set /a end_hs=100%%d %% 100
)

set /a s=%end_s%-%start_s%
set /a hs=%end_hs%-%start_hs%

if %hs% lss 0 (
    set /a s=%s%-1
    set /a hs=100%hs%
)
if 1%hs% lss 100 set hs=0%hs%

echo.
echo  Time taken: %s%.%hs% secs
echo.