CPU with SYS utilization

[Joel Bortolotto Almeida]

In the CPU report a have 40% of CPU utilization with SYS. How can I know what process is consuming it ?
I need to know the processes that are using SYS CPU and how can I reduce the SYS CPU, because it grows in time and never shrink, only with a machine reboot.

[Borislav Perkov]

Hi,
You can see it with top command, or if you have Glance installed.
You can also try this command:
echo " VSZ(KB) PID USER COMMAND";UNIX95= ps -e -o 'vsz pid ruser args' |sort -nr|head -30

Regards,
Borislav

[Mahesh Kumar Malik]

Hi Joel

You can use top command to view processes with CPU utilisation

Regards
Mahesh

[Joel Bortolotto Almeida]

Borislav,

Thanks for your help.
I´m interested in SYS CPU utilization. I know that with top or glance i can take information about CPU utilization, but my question is about SYS CPU utilization. It´s grows and I don´t know what processes are using CPU in SYS mode.

After I know what processes are consuming SYS CPU I will verify what to do.

[Vibhor Kumar Agarwal]

How about prstat.

I think it shows that also.

[Borislav Perkov]

Than you should be concetrated on processes owned by root and find their CPU utilization.
exp. in glance filtering root owned processes using high percentage of CPU.

[Eric Antunes]

Hi Joel,

Can you tell us what hardware (CPU, storage, etc...) your have in this box?

Please also post the following results:

#iostat -t 6 10

Best Regards,

Eric Antunes

[Joel Bortolotto Almeida]

It´s a L3000-7x , with 4 CPU´s. It´s connected to an EVA5000.
The result of iostat is attached.

[Eric Antunes]

Hi again,

Something is wrong with your c20t1d3 disk (see this thread with the same type of issue):

http://forums2.itrc.hp.com/service/forums/questionanswer.do?threadId=906088

Best Regards,

Eric Antunes