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Runtime informations - bash script


 
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# 1  
Old 10-24-2009
Question Runtime informations - bash script

Hello,

I'm running a bash script and I'd like to get more accurate a runtime information then now.

So far I've been using this method:

Code:
STARTM=`date -u "+%s"`
.........
*script function....
.........
STOPM=`date -u "+%s"`
RUNTIMEM=`expr $STOPM - $STARTM`
if (($RUNTIMEM>59)); then
TTIMEM=`printf "%dm%ds\n" $((RUNTIMEM/60%60)) $((RUNTIMEM%60))`
else
TTIMEM=`printf "%ds\n" $((RUNTIMEM))`
fi

echo "Executing "script function" took: $TTIMEM"

However the script often runs under one second, so the result is 0s.

I'd like it display a more accurate runtime, best 0.015s or 1.123s and so on...

Last edited by TehOne; 10-24-2009 at 05:09 PM..
# 2  
Old 10-24-2009
Hi.

You could try using "time":

Code:
time {
........
........
........
}

# 3  
Old 10-24-2009
Quote:
Originally Posted by scottn
Hi.

You could try using "time":

Code:
time {
........
........
........
}


Thanks but that's not an option... I do not really echo the $TTIMEM var... that was just an example... I pass it to another script... and then my script goes on and does different stuff...

---------- Post updated at 11:54 AM ---------- Previous update was at 11:13 AM ----------

please delete this theard
# 4  
Old 10-24-2009
Would this work perhaps (using GNU date)?:
Code:
#!/bin/ksh
res1=$(date +%s.%N)
sleep 1
res2=$(date +%s.%N)
echo "Start time: $res1"
echo "Stop time:  $res2"
echo "Elapsed:    $(( res2 - res1 ))"

Code:
$> ./test2
Start time: 1256415694.189522104
Stop time:  1256415695.193247576
Elapsed:    1.00372547202277929


Last edited by Scrutinizer; 10-24-2009 at 09:29 PM..

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