How to find out process, which is slowing down system

[reis]

I installed HPUX 11.00 Sept02 completely new, and all worked fine. After I installed the patches, which are recommended for Catia, the system is extremely slow. If I look which process slows the system down, I see only inetd with 3%, but top tells me, usr=40% and sys=52%.
On the front display the harddisk symbol is always on, but there is no swap space allocated (only 3%). How can I find the responsible process?
Kind regards
Walter

[Leif Halvarsson_2]

Hi,
Is there any disk activity, check with "iostat 5".

[Mike Lacey_6]

Hi Walter,

What application(s) is your server running? (Or is that Catia which you mention in your post)

Have you checked with your application vendor(s) that you're runnng the correct software and patches?

Is your system paging? Look at the output of the command

vmstat 1

What is in the PO field?

[Zeev Schultz]

rough -
check with vmstat (or glance) page outs and buffer cache values.How much physical memory
do you have?In Glance go to memory report.Also post swapinfo -ma,iostat and vmstat.

Zeev

[Keely Jackson]

Hi Walter

Have you checked your kernel settings. CAD programs often require the engineering kernel set (sorry can't remember the exact name).

Cheers
Keely

[reis]

Hi,
here are the results, you asked for:
2GB RAM and no application is running, I??m only logged in.
The results are in the attachment.
Kind regards
Walter

[reis]

Kernel parameter are set like
CAE/ME/EE Engineering Workstation.

Kind regards
Walter

[Michael Steele_2]

Oops. Your paging. Note 'po' in 'vmstat'. This should be zero. Only two ways to correct, reduce the number of processes on the server (* turn stuff off *) or add more memory.

[Michael Kelly_5]

A high sys% value could indicate a problem with a process (or processes) forking, the parent then exiting and the child repeating the loop. This will consume a lot of sys time and almost no user time.

You could try piping the output of ps -ef to a file at intervals of 5 seconds or so and looking for shortlived processes as a starting point.

HTH,
Michael.