topic display virtual memory usage in Operating System - Tru64 Unix

display virtual memory usage

lawrenzo — Fri, 22 Feb 2008 15:36:32 GMT

Hello,

I am looking for a set of commands to monitor virtual memory on a tru64 server:

I have come up with:

vmstat
monitor

then I also use this on other systems:

UNIX95=1 ps -e -o vsz,ruser,pid,args | sort -rn |more

I read the man page and see vsz is Process virtual address size, is this telling me this is the virtual memory usage for the proc?

appologies for my tru64 ingnorance and any other tools I can use would be great.

Thanks

Chris.

Re: display virtual memory usage

Hein van den Heuvel — Fri, 22 Feb 2008 17:57:48 GMT

fwiw, you don't need the UNIX95 for ps in Tru64.
The -o is a (tru64) standard extention with many options.

vss is indeed Virtual memory,
but rssize (RSZ) for the Resdent Size is often more critical. That's the 'real' memory used.

You also want to look at 'top', and for longer term data collection always think about 'collect' first.

http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN1/0380____.HTM

Hein

Re: display virtual memory usage

Ivan Ferreira — Fri, 22 Feb 2008 21:02:14 GMT

Besides collect, probably swapon -s is another command that may help. Check also the swap allocation mode kernel parameter (swap_eager).