topic Re: System performance in Operating System - HP-UX

System performance

Prashant Zanwar_4 — Mon, 31 Jan 2005 12:07:18 GMT

Does anyone have a way to sort Memory usage per process? Please provide if anyone uses script to do this!
Thanks and regards
Prashant

Re: System performance

twang — Mon, 31 Jan 2005 12:12:29 GMT

#!/bin/sh
echo "VSZ(KB) PID RUSER COMMAND"
UNIX95= ps -e -o 'vsz pid ruser args' |sort -nr |more

Re: System performance

Kent Ostby — Mon, 31 Jan 2005 13:56:35 GMT

When I am having memory problems, I sometimes go looking for the cpu usage off of ps since heavy CPU usage correlates at times to the memory usage:

ps -ef | sort -nr -k42,80 | head

Then repeat it a few seconds later to see where the CPU time is being burned up.

Re: System performance

Nobody's Hero — Mon, 31 Jan 2005 14:01:30 GMT

sort -rn -k 2

Re: System performance

Nobody's Hero — Mon, 31 Jan 2005 14:02:25 GMT

Sorry, here is the script I use.

where quantity is the top RAM processes to show (default is 20)
#
set -u
if [ $# -gt 0 ]
then
TOPPROCS=$1
else
TOPPROCS=20
fi

MYNAME=$(basename $0)
TEMPFILE=/var/tmp/$MYNAME.$$
trap `rm -f $TEMPFILE > /dev/null 2>&1` 0 1 2 3 15

UNIX95= ps -e -o ruser,vsz=Kbytes -o pid,args=Command-Line > $TEMPFILE
head -1 $TEMPFILE
DASH5="-----"
DASH25="$DASH5$DASH5$DASH5$DASH5$DASH5"
echo "$DASH5---- $DASH5- $DASH5 $DASH25$DASH25"
grep -v "VSZ COMMAND" $TEMPFILE \
| cut -c -78 \
| sort -rn -k 2 \
| head -${TOPPROCS}

rm $TEMPFILE > /dev/null 2>&1

Re: System performance

Prashant Zanwar_4 — Mon, 31 Jan 2005 14:07:02 GMT

Thanks both..For some reason I am not able to work with 1st option UNIX95...
Is there any way to know IO per process..
Will be very gr8 help..
Thanks and regards
Prashant

Re: System performance

Patrick Wallek — Mon, 31 Jan 2005 14:28:32 GMT

Note that there MUST be a space between UNIX95= and the ps command.

Like:

# UNIX95=ps...........

Re: System performance

Prashant Zanwar_4 — Mon, 31 Jan 2005 15:29:45 GMT

thats all gr8...
I wanted something to sort processes per IO usage...It's quite complicated and not straight always to look at IO hits and then drill thru processes..does anyone uses any script for this..One of my server is trashing..heavy IO also..Please help..
Thx
Prashant

Re: System performance

Chris Vail — Mon, 31 Jan 2005 17:48:53 GMT

You've mentioned one of the main reasons that HP sells glance. I recommend it. Like someone else posted, whenever I see heavy memory usage I use:
ps -ef|sort -k 4nr,4|pg
to see which processes are hitting the system the hardest. But Glance has all this good stuff for you already sliced, diced and graphical.

Chris

Re: System performance

TwoProc — Mon, 31 Jan 2005 19:13:31 GMT

Prashant - Chris is right - Glance is the tool for this job. You can load it right off the install CD's for a free 30 day trial. HP is hoping you get hooked on it and therefore buy it - and you probably should, it really makes life simpler for these sorts of issues.