topic Re: How to determine memory used in Operating System - HP-UX

How to determine memory used

Glenn Couture — Fri, 13 Jul 2001 14:08:10 GMT

I dont have root. How can I tell how much physical memory is being used. My sysadmin is clueless.

Re: How to determine memory used

Paula J Frazer-Campbell — Fri, 13 Jul 2001 14:18:00 GMT

Hi

Top

Paula

Re: How to determine memory used

Paula J Frazer-Campbell — Fri, 13 Jul 2001 14:21:26 GMT

Hi

Also

swapinfo -M

HTH

Paula

Re: How to determine memory used

Glenn Couture — Fri, 13 Jul 2001 14:22:50 GMT

The numbers are not adding up. I know there is 4 gigs on the box..yet free and used dont add up to 4 gig.

Thanks for your reply

Re: How to determine memory used

James R. Ferguson — Fri, 13 Jul 2001 14:23:48 GMT

Hi:

# grep -i physical /var/adm/syslog/syslog.log

...will work if the log hasn't been trimmed.

...JRF...

Re: How to determine memory used

Ajitkumar Rane — Fri, 13 Jul 2001 14:26:04 GMT

Hello,
I dont think swapinfo will run without root acess. Top should do. Also you can run glance/gpm if installed on your system. Also you have vmstat.

Goodluck

Re: How to determine memory used

Glenn Couture — Fri, 13 Jul 2001 14:31:02 GMT

Thanks for the help. I cant run swapinfo, the sysadmin let glance lisc. expire. The grep from the syslog did show memory at startup, but before oracle was running. Top info does not add up to 4 gig, but does show 2.5 gig free. Is it then safe to assume 1.5 gig used? Also vmstat does not add up to 4 gig.

Re: How to determine memory used

James R. Ferguson — Fri, 13 Jul 2001 14:44:03 GMT

Hi (again):

Oh, sorry, of course, 'syslog' shows physical memory not dynamic. No points for misreading the question please!

...JRF...

Re: How to determine memory used

MANOJ SRIVASTAVA — Fri, 13 Jul 2001 15:29:56 GMT

Hi Glenn

I am attaching a c program which i got from the forums yesterday. It is attached to the answer , just downlad it to the Pc , ftp it to the server. and then compile it using
( first rename the source from memuse.txt to memuse.c)

cc memuse.c -o memuse

change the permissions to 777 and run it as an excutable.

Nice program comes out witht the memory usage .

Manoj Srivastava

Re: How to determine memory used

Scott Robertson — Fri, 13 Jul 2001 16:27:43 GMT

If you liked my memuse.c program, give this one a try.

cc memdetail.c -o memdetail

Re: How to determine memory used

MANOJ SRIVASTAVA — Fri, 13 Jul 2001 17:04:28 GMT

Thanx Scot

Manoj

Re: How to determine memory used

Brian Crabtree — Tue, 17 Jul 2001 02:04:09 GMT

If you are looking for the amount of memory Oracle is currently using, you can query the database in the v$sga view from system or internal.

To calculate the space taken up by the database yourself, do this:

shared_pool_size+log_buffer+
(db_block_buffers*db_block_size)

This will give you a good approximation of the size of the database itself.