performance paradoxon

[cl_5]

Hi Forumers!

I've got a C3600 running hpux 11. The following anomaly happens on this machine:

Load average is up to 38 and processe like vhand, vxfsd, syncer and swapper consumes most of cpu time. It looks like a disk or memory performance bottleneck but there's no swap activity and no disk usage. I didn't find any process which is a disk or memory hog.

Can anybody help?

regards
cl

[Patrick Wallek]

What is your kernel parameter 'timeslice' set to? If it is anything other than 10, then change it back to 10, recompile the kernel and reboot.

[G. Vrijhoeven]

Hi,

Do you have glance/gpm installed?
You can see the i/o memory usage per proces.
If not you can check with top with process is setting this off. Check /var/adm/syslog/syslog.log for failed hardware.

Gideon

[Fabio Ettore]

Hi,

try to see the following URL:

http://docs.hp.com/hpux/onlinedocs/os/11.0/tuningwp.html

Anyway sar always is the best tool to search out reasons of performance problems, man(1) sar.

Best regards,
Ettore