topic Re: pst_status records not updated.....? in Operating System - HP-UX

pst_status records not updated.....?

Phillip Bell — Tue, 19 Oct 2004 10:50:15 GMT

Hi people..

Got a complex one for ya!

We are currently trying to develop a small data collection agent to collect all the performance data from a HP-UX system running 11i. But were having trouble with data from 4 fields in the pst_status record.

The fields that are not being updated are all located in the pst_status record:

Input Blocks (pst_inblock)
Output Blocks (pst_oublock)
Voluntary Context Switches (pst_nvcsw)
Involuntary Context Switches (pst_nivcsw)

At a given point in time each these fields for each process give exactly the same number. We find it unlikely that each process on the system is doing the same number of IOs at the same time.

Has anybody else used these? Did you have the same problem? Do you know of any piece of software that can get this data corectly (IO reads and writes and Voluntary/Involuntary context switches per process)?

Cheers :-)

Re: pst_status records not updated.....?

Steven E. Protter — Tue, 19 Oct 2004 11:30:22 GMT

I don't understand the system you are using.

I use a set of scripts I got from HP that work pretty nicely with my enhancements. I'm attaching a copy, just in case they are useful.

SEP

Duh. Attachment this time.

Re: pst_status records not updated.....?

Phillip Bell — Wed, 20 Oct 2004 02:57:57 GMT

Thanks SEB i'll take a look at that and see if it helps us.

SEB you are saying that your scripts can get the information on IOs done by each process running on the system? If that is definately the case then I can go and tell someone here they are talking total "rubbish"!

If anybody else has any ideas please post! :-)