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

memory problem

Sameh Roufail — Mon, 20 Sep 2004 04:14:38 GMT

Dear all,
I have RP7420 server (8 CPU and 8GB memory). we are running HP-UX 11.11. Our problem, we notice if we run any process (even small one like ll -R) it consume a lot of memory and after it finish it doesn't release this speace of memory which lead that we have a high memory utilization and memory utilization reach 100% and system hangs.
Do anyone can help.
Thanks & Regards
Sam

Re: memory problem

Tomek Gryszkiewicz — Mon, 20 Sep 2004 04:19:54 GMT

Is it system or user memory?
We had the similar problem (system memory leaking) - PHNE_29987 patch solved it.

-Tomek

Re: memory problem

Sยภเl Kย๓คг — Mon, 20 Sep 2004 04:23:17 GMT

Can u clarifiey it

Re: memory problem

Sameh Roufail — Mon, 20 Sep 2004 04:44:33 GMT

it is a user memory. when I check with glance I found that the sys memory 1.5gb, the user memory increase during running any process and I found the buff cache now about 4 gb. If we reboot the server the buff cache goes down. I think during runniny process, the system reserve some more buffer cache memory and after it finish it doesn't release it.
Regards
Sam

Re: memory problem

Tomek Gryszkiewicz — Mon, 20 Sep 2004 06:15:57 GMT

So, it's a buffer cache?
Probably you have default kernel setting dbc_max_pct 50 (it is 50%). Change it to 10-15

-Tomek