topic Re: CPU Usage is 100%. in Operating System - HP-UX

CPU Usage is 100%.

shikhar_1 — Wed, 07 Dec 2011 20:09:26 GMT

Hi,

I am having issue of high CPU utilization with one of HP-UX server.

I have checked and found one process is consuming max cpu. See the below findings.

Glance o/p

      UR                 R                                                                                              | 23%   23%   23%
------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                     PROCESS LIST                                                         Users=    1
                         User      CPU %    Thrd Disk        Memory       Block
Process Name     PID     Name   ( 200% max) Cnt IOrate      RSS/VSS      On
--------------------------------------------------------------------------------
sh                 16535 root         75.0     1   0.0     384kb    476kb   PRI
oracleBTR          24986 oracle9      23.6     1   3.8    28.4mb   30.0mb   new
oracleBTR          24151 oracle9      23.4     1   0.0    30.6mb   33.4mb   PRI
batchman            5237 maestro      20.7     1   5.4     4.3mb    4.9mb   PRI

#-> ps -ef | grep -i 16535
root 16535 1 253 Nov 29 ? 9157:12 -sh
root 26025 24301 0 17:01:51 pts/1 0:00 grep -i 16535

Can i kill that -sh process??

Appreciate quick response.

Re: CPU Usage is 100%.

Patrick Wallek — Wed, 07 Dec 2011 20:19:07 GMT

I think it would be safe to kill

It looks like a shell from a session that was terminated incorrectly.

Re: CPU Usage is 100%.

shikhar_1 — Wed, 07 Dec 2011 20:45:22 GMT

Killed -sh process but still the CPU usage is showing high.

CPU   LOAD   USER   NICE    SYS   IDLE BLOCK SWAIT   INTR   SSYS
0    3.71 80.2%   0.0% 19.8%   0.0%   0.0%   0.0%   0.0%   0.0%
1    3.56 81.9%   0.0% 18.1%   0.0%   0.0%   0.0%   0.0%   0.0%
---   ---- ----- ----- ----- ----- ----- ----- ----- -----
avg   3.64 81.0%   0.0% 19.0%   0.0%   0.0%   0.0%   0.0%   0.0%

Memory: 4916688K (3655204K) real, 7241320K (5816016K) virtual, 4897016K free Page# 1/6

CPU TTY    PID USERNAME PRI NI   SIZE    RES STATE    TIME %WCPU %CPU COMMAND
1   ?   25901 root     241 20 24924K 5480K run     13:16 35.23 35.17 bpbkar
1   ?   25927 root     241 20 24924K 5480K run     12:29 31.19 31.13 bpbkar
1   ?   25893 root     152 20 25468K 6088K run     11:36 17.89 17.86 bpbkar

1   ?    1756 oracle9 154 20 1194M 8064K sleep    1:49 12.95 12.93 oracleBTR
0   ?   22772 oracle9 204 20 1196M 7344K run     58:54 12.06 12.04 oracleBTR
0   ?    5237 maestro 148 20 7916K 2756K sleep   50:51 10.41 10.39 batchman

Re: CPU Usage is 100%.

Patrick Wallek — Wed, 07 Dec 2011 20:59:52 GMT

Well, yes it is. You now have other process that are using CPU.

The 3 bpbkar process are using a combined 83% CPU. You need to determine if those are valid processes or not and whether or not they can be killed.

Re: CPU Usage is 100%.

Dennis Handly — Wed, 07 Dec 2011 20:52:16 GMT

>but still the CPU usage is showing high.

Not much you can do about it except get more CPUs, RAM or a faster machine?

Or schedule your bpbkar processes later? A similar URL:

http://www.symantec.com/connect/forums/bpbkar-slow-and-taking-100-cpu

What does "swapinfo -tam" show?

Re: CPU Usage is 100%.

suvy12 — Wed, 07 Dec 2011 21:14:24 GMT

can u check for background processes if any running

Run

#fg

Re: CPU Usage is 100%.

shikhar_1 — Wed, 07 Dec 2011 21:21:27 GMT

#-> swapinfo -tam Mb Mb Mb PCT START/ Mb TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME dev 20000 626 19374 3% 0 - 1 /dev/vg00/lvol2 reserve - 4826 -4826 memory 9450 1399 8051 15% total 29450 6851 22599 23% - 0 - [root@brsjp020:/var/spool/sockets/pwgr]#

Re: CPU Usage is 100%.

Dennis Handly — Wed, 07 Dec 2011 21:37:26 GMT

(It would help if you could go back and edit your post to make the output readable.)

>memory 9450 1399 8051 15%

So you have free memory and aren't swapping.