topic Re: comparison performance trouble shooting in Operating System - HP-UX

comparison performance trouble shooting

Franky Leeuwerck_2 — Fri, 17 Nov 2006 08:10:29 GMT

Hi,

I need to do some basic troubleshooting on an AIX OS. Is the approach comparable with HP-UX ? I mean, is there also a buffer cache that normally should be downtuned, etcetera ..

Franky

Re: comparison performance trouble shooting

siva0123 — Fri, 17 Nov 2006 08:16:01 GMT

Franky,

The concept has to be somewhat similar but may be there is some differences in the commands.

Start with the CPU performance and proceed towards , DISK i/o and then the memory followed by network and other application issues.

For cpu ,
probably topas will help you in AIX

For disk issues iostat should help

For diagnosing memory problem as ussual vmsat will help.

And netstat will help you in identifying network issues.

Thanks,
Siva

Re: comparison performance trouble shooting

Franky Leeuwerck_2 — Fri, 17 Nov 2006 08:52:13 GMT

Hi Siva,

Would you happen to know if there is also something like a dbc_max_pct ?

Franky

Re: comparison performance trouble shooting

jitendra_8 — Sat, 18 Nov 2006 10:11:31 GMT

Hello Franky

dbc_max_pct is a kernel parameter which defines percentage of memory to be used by dynamic buffer .

This link will help u ...

http://docs.hp.com/en/939/KCParms/KCparam.DBCmaxPct.html

cheers
jeet

Re: comparison performance trouble shooting

Franky Leeuwerck_2 — Mon, 20 Nov 2006 03:35:01 GMT

Hi Jeet,
I know about the parameter on hp-ux but I was wondering if a similar parm exists on AIX ?

Franky