topic Re: System memory utilization critical in Operating System - HP-UX

System memory utilization critical

arun khatwani — Tue, 23 Jun 2009 09:30:48 GMT

I got request from client that are facing performance degrade in theor applications.

When we checked fouemd memory utilization is 97% utilized.

But when run the unix95 command did not find the Processes consuming high memory.

Glance X.04.73.121 12:27:22 htrxc1 ia64 Current Avg High
------------------------------------------------------------------------------------------------------------------------------
CPU Util SSU U | 13% 10% 15%
Disk Util | 0% 1% 1%
Mem Util S SU UF F | 97% 97% 97%
Networkil U UR R | 53% 53% 53%

can anyone plz suggest wat else needs to be check.

Re: System memory utilization critical

Aneesh Mohan — Tue, 23 Jun 2009 09:37:07 GMT

Please post

# ipcs -mpb

#echo "freemem/D" |adb /stand/vmunix /dev/kmem

#dmesg |grep -i phy

#swapinfo -tam

Regards,
Aneesh

Re: System memory utilization critical

Aneesh Mohan — Tue, 23 Jun 2009 09:40:04 GMT

sorry freemem/D will not work with ia64,please post "vmstat 5 5"

Regards,
Aneesh

Re: System memory utilization critical

Vivek Bhatia — Tue, 23 Jun 2009 10:52:37 GMT

Hi Arun,

Please paste the output for swapinfo -tam.

Regards,
Vivek

Re: System memory utilization critical

Jitesh purohit_1 — Tue, 23 Jun 2009 11:22:32 GMT

Hi Arun,

You can use

UNIX95= ps -ef -o "vsz,pid,args" | sort -rn -k1 | head -n 5
*UNIX95= ps -e -o "user,pcpu,cpu,args" |sort -rn -k2 |head -n 5
*sar
*top
*glance -m
*swapinfo -tam

Thanks
Jitesh

Re: System memory utilization critical

Laurent Menase — Tue, 23 Jun 2009 13:11:37 GMT

support tool result:
kmeminfo

echo freemem/A | adb -o /stand/vmunix /dev/kmem

gives the freemem in hex on 11.31

Re: System memory utilization critical

Emil Velez — Tue, 23 Jun 2009 23:48:01 GMT

How much memory do you have on the system.

97% of 16 gb is different that that of 96GB

Also you seem to have minimal CPU utilization.

May want to look at dbc_min and dbc_max or
filecache_max at 11.31