topic Re: shared memory in Operating System - HP-UX

shared memory

Richard Woolley — Tue, 16 Oct 2001 13:11:11 GMT

does anyone know if there is a shared memory reporting tool. I need to know how much I have and what is using it?

cheers.

Re: shared memory

Rainer von Bongartz — Tue, 16 Oct 2001 13:16:17 GMT

use ipcs
for share memory info it is
ipcs -ma

Regards
rainer

Re: shared memory

G. Vrijhoeven — Tue, 16 Oct 2001 13:33:51 GMT

Hi mark,

you can use sar -m aswell.

Gideon

Re: shared memory

harry d brown jr — Tue, 16 Oct 2001 13:34:58 GMT

glance+ is your best bet.

Re: shared memory

Uday_S_Ankolekar — Tue, 16 Oct 2001 13:41:16 GMT

Hi,

ipcs -moba will give details of used shared memeory.
If you find any application with 0 NATTACH you can remove this and release shared memonry by
ipcrm -m followed by id #

Good luck

-USA..

Re: shared memory

Richard Woolley — Tue, 16 Oct 2001 14:32:33 GMT

tried ipcs -mobas and thats given us some ideas however our sar has stopped working.... help, whenever we try and run a sar, we get an error:
sar Can't open /var/admsa/sa16

please help, whats going on?

mark.

Re: shared memory

Wodisch — Tue, 16 Oct 2001 14:37:04 GMT

Hello,

if you read the man-pages for the "Memory Windows" there should be a reference to a tool named like "memwin_stat"...
Try this.
It could be available on the HP RC ftp server:
ftp://contrib:9unsupp8@hprc.external.hp.com

HTH,
Wodisch

Re: shared memory

Richard Woolley — Tue, 16 Oct 2001 14:38:24 GMT

sorry guys, read the man page on sar and sussed it.
sar -m 10 5 works.
cheers,

mark.

Re: shared memory

A. Clay Stephenson — Tue, 16 Oct 2001 14:44:46 GMT

Hi Mark:

You are missing the data collector files because you are not running sadc. However, you can simply invoke sar with a sampling interval and number of samples: e.g. sar -m 2 4 (sample every 2 seconds 4 times).

I doubt however that this metric is useful as it shows transactions/s.

Clay