如何在Windows命令行上测量命令的执行时间？

如果你想

以(hh:mm:ss.ff格式)测量执行时间到百分之一秒

无需下载和安装资源包

看起来像一个巨大的DOS书呆子(谁没有)

尝试将以下脚本复制到新的批处理文件中(例如timecmd.bat):

@echo off
@setlocal

set start=%time%

:: Runs your command
cmd /c %*

set end=%time%
set options="tokens=1-4 delims=:.,"
for /f %options% %%a in ("%start%") do set start_h=%%a&set /a start_m=100%%b %% 100&set /a start_s=100%%c %% 100&set /a start_ms=100%%d %% 100
for /f %options% %%a in ("%end%") do set end_h=%%a&set /a end_m=100%%b %% 100&set /a end_s=100%%c %% 100&set /a end_ms=100%%d %% 100

set /a hours=%end_h%-%start_h%
set /a mins=%end_m%-%start_m%
set /a secs=%end_s%-%start_s%
set /a ms=%end_ms%-%start_ms%
if %ms% lss 0 set /a secs = %secs% - 1 & set /a ms = 100%ms%
if %secs% lss 0 set /a mins = %mins% - 1 & set /a secs = 60%secs%
if %mins% lss 0 set /a hours = %hours% - 1 & set /a mins = 60%mins%
if %hours% lss 0 set /a hours = 24%hours%
if 1%ms% lss 100 set ms=0%ms%

:: Mission accomplished
set /a totalsecs = %hours%*3600 + %mins%*60 + %secs%
echo command took %hours%:%mins%:%secs%.%ms% (%totalsecs%.%ms%s total)

用法

如果将timecmd.bat放在路径中的目录中,可以从以下任何位置调用它:

timecmd [your command]

例如

C:\>timecmd pause
Press any key to continue . . .
command took 0:0:1.18

如果要进行输出重定向,可以像这样引用命令:

timecmd "dir c:\windows /s > nul"

这应该处理从午前到午夜之间运行的命令,但如果命令运行24小时或更长时间,输出将是错误的.

呵呵,最简单的解决方案可能就是:

echo %time%
YourApp.exe
echo %time%

这适用于每个开箱即用的Windows.

如果应用程序使用控制台输出,则可以方便地将开始时间存储在临时变量中:

set startTime=%time%
YourApp.exe
echo Start Time: %startTime%
echo Finish Time: %time%

如果您使用的是Windows 2003(请注意,不支持Windows Server 2008及更高版本),您可以使用Windows Server 2003资源工具包,其中包含显示详细执行统计信息的timeit.exe.这是一个例子,计时命令"timeit - ？":

C:\>timeit timeit -?
Invalid switch -?
Usage: TIMEIT [-f filename] [-a] [-c] [-i] [-d] [-s] [-t] [-k keyname | -r keyname] [-m mask] [commandline...]
where:        -f specifies the name of the database file where TIMEIT
                 keeps a history of previous timings.  Default is .\timeit.dat
              -k specifies the keyname to use for this timing run
              -r specifies the keyname to remove from the database.  If
                 keyname is followed by a comma and a number then it will
                 remove the slowest (positive number) or fastest (negative)
                 times for that keyname.
              -a specifies that timeit should display average of all timings
                 for the specified key.
              -i specifies to ignore non-zero return codes from program
              -d specifies to show detail for average
              -s specifies to suppress system wide counters
              -t specifies to tabular output
              -c specifies to force a resort of the data base
              -m specifies the processor affinity mask

Version Number:   Windows NT 5.2 (Build 3790)
Exit Time:        7:38 am, Wednesday, April 15 2009
Elapsed Time:     0:00:00.000
Process Time:     0:00:00.015
System Calls:     731
Context Switches: 299
Page Faults:      515
Bytes Read:       0
Bytes Written:    0
Bytes Other:      298

您可以在Windows 2003 Resource Kit中获取TimeIt.在这里下载 .

只是一点点扩大,从Casey.K回答有关使用Measure-Command从PowerShell的:

您可以从标准命令提示符调用PowerShell,如下所示:

powershell -Command "Measure-Command {echo hi}"

这将使用标准输出,但您可以通过| Out-Default从PowerShell 添加这样来阻止它:

Measure-Command {echo hi | Out-Default}

或者从命令提示符:

powershell -Command "Measure-Command {echo hi | Out-Default}"

当然,你可以自由在脚本文件来包装这个*.ps1或*.bat.

我在Windows Server 2008 R2中使用的单行程序是:

cmd /v:on /c "echo !TIME! & *mycommand* & echo !TIME!"

只要mycommand不需要引号(使用cmd的引用处理).的/v:on是,以允许与在命令的执行进行评估独立地,而不是一旦两个不同的时间值.

如果打开命令窗口并手动调用命令,则可以在每个提示上显示时间戳,例如

prompt $d $t $_$P$G

它给你的东西:

23.03.2009 15:45:50,77

C:\>

如果您有一个执行命令的小批处理脚本,则在每个命令之前都有一个空行,例如

(空行)

myCommand.exe

(下一个空行)

myCommand2.exe

您可以通过提示中的时间信息计算每个命令的执行时间.最好的方法是将输出传递给文本文件以进行进一步分析:

MyBatchFile.bat > output.txt

由于其他人建议安装免费软件和PowerShell之类的东西,你也可以安装Cygwin,它可以让你访问许多基本的Unix命令,比如时间:

abe@abe-PC:~$ time sleep 5

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

不确定Cygwin增加了多少开销.

不像Unix上的某些功能那么优雅,但创建一个cmd文件,如下所示:

@echo off
time < nul
yourexecutable.exe > c:\temp\output.txt
time < nul
rem on newer windows system you can try time /T

这将显示开始和停止时间,如下所示:

The current time is: 10:31:57.92
Enter the new time:
The current time is: 10:32:05.94
Enter the new time:

timer
yourapp.exe
timer /s

C:\> ptime

ptime 1.0 for Win32, Freeware - http://www.pc-tools.net/
Copyright(C) 2002, Jem Berkes 

Syntax: ptime command [arguments ...]

ptime will run the specified command and measure the execution time
(run time) in seconds, accurate to 5 millisecond or better. It is an
automatic process timer, or program timer.


C:\> ptime cd

ptime 1.0 for Win32, Freeware - http://www.pc-tools.net/
Copyright(C) 2002, Jem Berkes 

===  cd ===
C:\

Execution time: 0.015 s

@echo off

set starttime=%TIME%
set startcsec=%STARTTIME:~9,2%
set startsecs=%STARTTIME:~6,2%
set startmins=%STARTTIME:~3,2%
set starthour=%STARTTIME:~0,2%
set /a starttime=(%starthour%*60*60*100)+(%startmins%*60*100)+(%startsecs%*100)+(%startcsec%)

:TimeThis
ping localhost 

set endtime=%time%
set endcsec=%endTIME:~9,2%
set endsecs=%endTIME:~6,2%
set endmins=%endTIME:~3,2%
set endhour=%endTIME:~0,2%
if %endhour% LSS %starthour% set /a endhour+=24
set /a endtime=(%endhour%*60*60*100)+(%endmins%*60*100)+(%endsecs%*100)+(%endcsec%)

set /a timetaken= ( %endtime% - %starttime% )
set /a timetakens= %timetaken% / 100
set timetaken=%timetakens%.%timetaken:~-2%

echo.
echo Took: %timetaken% sec.