How to time a script in DOS? - time

Question

How do you time a script in the DOS prompt?
The *NIX equivanlent would be:
$ time myscript
real 0m0.886s
user 0m0.846s
sys 0m0.031s
$
Is there a DOS equivalent to this? Thanks

Answer 1

you can put this at the start and end of your batch:
echo %time%

Answer 2

you can use timeit.exe from the Windows Server 2003 Resource Kit . You also get a crapload of other useful tools and Unix command ports.
C:\Documents and Settings\Rob>timeit sleep 3
Version Number: Windows NT 5.1 (Build 2600)
Exit Time: 2:40 pm, Thursday, December 10 2009
Elapsed Time: 0:00:03.296
Process Time: 0:00:00.015
System Calls: 7576
Context Switches: 1974
Page Faults: 1072
Bytes Read: 6172
Bytes Written: 11086
Bytes Other: 144432

Answer 3

This is a DOS batch script that will compute the time difference for you rather than just doing echo %time%.
The following code will work fine as long as your "timed user section" doesn't take more than 24 hours to run. Please be forgiving or give me suggestions, it's a work in progress that I spent about an hour on.
Replace "PAUSE" with the call to your script to time your own code.
DOS BAT FILE FOLLOWS:
Note: was edited to fix issue with leading zeros being octal rather than decimal.
Note: was edited to handle running over "midnight" hour wraparound and to put leading zeros in output.
#echo off
#rem --------------------------------------------
setlocal ENABLEEXTENSIONS
set start_time=%time%
echo Beginning at: %start_time%
echo Running Timed Batch File
echo.
#rem echo %* <-- Extension for all args -- easier than following line
#rem echo %0 %1 %2 %3 %4 %5 %6 %7 %8 %9 ... ...
#rem DO YOUR WORK HERE -- see "call" / PAUSE is here to "fake" work
#rem call userscript.bat %*
PAUSE
set stop_time=%time%
echo.
echo Timed Batch File Completed
echo Start time: %start_time%
echo Stop time : %stop_time%
set TEMPRESULT=%start_time:~0,2%
call:FN_REMOVELEADINGZEROS
set start_hour=%TEMPRESULT%
#rem
set TEMPRESULT=%start_time:~3,2%
call:FN_REMOVELEADINGZEROS
set start_min=%TEMPRESULT%
#rem
set TEMPRESULT=%start_time:~6,2%
call:FN_REMOVELEADINGZEROS
set start_sec=%TEMPRESULT%
#rem
set TEMPRESULT=%start_time:~9,2%
call:FN_REMOVELEADINGZEROS
set start_hundredths=%TEMPRESULT%
set TEMPRESULT=%stop_time:~0,2%
call:FN_REMOVELEADINGZEROS
set stop_hour=%TEMPRESULT%
#rem
set TEMPRESULT=%stop_time:~3,2%
call:FN_REMOVELEADINGZEROS
set stop_min=%TEMPRESULT%
#rem
set TEMPRESULT=%stop_time:~6,2%
call:FN_REMOVELEADINGZEROS
set stop_sec=%TEMPRESULT%
#rem
set TEMPRESULT=%stop_time:~9,2%
call:FN_REMOVELEADINGZEROS
set stop_hundredths=%TEMPRESULT%
set /A start_total=(((((%start_hour%*60)+%start_min%)*60)+%start_sec%)*100)+%start_hundredths%
set /A stop_total=(((((%stop_hour%*60)+%stop_min%)*60)+%stop_sec%)*100)+%stop_hundredths%
set /A total_time=%stop_total% - %start_total%
set /A total_hundredths=%total_time% %% 100
set total_hundredths=00%total_hundredths%
set total_hundredths=%total_hundredths:~-2%
set /A total_time=%total_time% / 100
set /A total_sec="%total_time% %% 60"
set total_sec=00%total_sec%
set total_sec=%total_sec:~-2%
set /A total_time=%total_time% / 60
set /A total_min="%total_time% %% 60"
set total_min=00%total_min%
set total_min=%total_min:~-2%
set /A total_time=%total_time% / 60
set /A total_hour="%total_time% %% 60"
#rem Handle if it wrapped around over midnight
if "%total_hour:~0,1%"=="-" set /A total_hour=%total_hour% + 24
echo Total time: %total_hour%:%total_min%:%total_sec%.%total_hundredths%
#rem --------------------------------------------
#rem Exit the BAT Program
endlocal
goto END
#rem --------------------------------------------
#rem FN_REMOVELEADINGZEROS function
#rem Used to remove leading zeros from Decimal
#rem numbers so they are not treated as Octal.
:FN_REMOVELEADINGZEROS
if "%TEMPRESULT%"=="0" goto END
if "%TEMPRESULT:~0,1%" NEQ "0" goto END
set TEMPRESULT=%TEMPRESULT:~1%
goto FN_REMOVELEADINGZEROS
#rem --------------------------------------------
#rem BAT PROGRAM / FUNCTION FILE EXIT
:END

Answer 4

If you don't mind using a third party EXE for help, timer.exe from Gammadyne is very useful.
setlocal ENABLEEXTENSIONS
FOR /F %%G IN ('timer') DO SET start_time=%%G
#rem Do your work Here
call userscript.bat %*
timer %start_time% "Total time"
endlocal