topic Re: Virtual Memory in Operating System - HP-UX

Virtual Memory

Carlos Vanegas — Fri, 17 Jan 2003 18:02:46 GMT

I have a server with 8 GM of Memory and 16GB for swap.

Swapifo obtain :
TYPE AVAIL USED FREE
dev 8388608 0 8388608
dev 8388608 0 8388608
reserve -2613548 -2613548

And when I use glance in section memory, I only saw:
Total VM : 2.65gb
Why??

Re: Virtual Memory

Sridhar Bhaskarla — Fri, 17 Jan 2003 18:11:53 GMT

I guess you are mistaken "total" for "available". This is not really the total virtual memory available on the server. It is the total virtual memory (stack+data) of all the processes on the system. As you keep on bringing up the processes, you will see it growing. The total virtual memory available on the server is given in the total line of swapinfo -t.

-Sri

Re: Virtual Memory

Sridhar Bhaskarla — Fri, 17 Jan 2003 20:14:24 GMT

OK I believe I didn't understand your question. How much are you expecting to see in your glance report?

-Sri

Re: Virtual Memory

Uday_S_Ankolekar — Fri, 17 Jan 2003 20:35:13 GMT

Check with swapinfo -tam for more detailed information on swap memory and use vmstat -n for VM info.

and output of these commands would be more helpful

-USA..

Re: Virtual Memory

Dietmar Konermann — Mon, 20 Jan 2003 08:57:17 GMT

Hi, Carlos!

You're simply comparing two completely different things. Look at Glance's online help to see the meaning of Total VM (GBL_MEM_VIRT)... it has nothing to do with your configured swap.

Best regards...
Dietmar.