topic Re: Memory usage per process in Operating System - HP-UX

Memory usage per process

Yu Zhen — Mon, 24 Mar 2003 08:15:02 GMT

Could you tell me which parameter in HPUX kernel control the memory used per process? or there isn't such a parameter at all?

Re: Memory usage per process

James Murtagh — Mon, 24 Mar 2003 08:29:41 GMT

Hi,

There are a few parameters which control the virtual memory limits, related to 32 and 64 bit processes.

Private to process:

maxtsiz - 32bit text quadrant
mattsiz_64bit - 64bit text

maxdsiz - 32bit data quadrant
matdsiz_64bit - 64bit data

maxssiz - 32bit stack quadrant
matssiz_64bit - 64bit stack

Global:

shmmax - size of maximum shared memory segment

If you are using the posix shell you may find some of these limits are set differently, use "ulimit -a" to find out.

Regards,

James.

Re: Memory usage per process

U.SivaKumar_2 — Mon, 24 Mar 2003 08:32:50 GMT

Hi,

To increase the memory allowed for a single process, Increase kernel parameters maxdsiz, maxtsiz and maxssiz . The values depends on the amount of RAM and swap space you have.

you can do this thru SAM.

regards,
U.SivaKumar