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

memory utilization

CU_1 — Fri, 09 Jul 2010 12:37:47 GMT

92%,is it normal utilization for memory used in rx4640 server with 6 Intel Xeon processors and 12GB of ram and this server and another working as RAC for Oracle 10g?? befor two weeks the utilization was 75% only.

Re: memory utilization

Deeos — Fri, 09 Jul 2010 15:06:10 GMT

Hi CU,

can you share me top output?

Re: memory utilization

CU_1 — Fri, 09 Jul 2010 15:44:53 GMT

thank you for response
see the attachment.

Re: memory utilization

Deeos — Fri, 09 Jul 2010 16:19:55 GMT

Cu,

where you found memory utilistion was about 92%?

Re: memory utilization

CU_1 — Fri, 09 Jul 2010 16:45:45 GMT

by swapinfo -a
also u can devide the used memory by the total memory and multiply by 100. :-)

Re: memory utilization

Dennis Handly — Sat, 10 Jul 2010 01:21:09 GMT

>in rx4640 server with 6 Intel Xeon

What kind of processors? Use machinfo.

>before two weeks the utilization was 75% only.

What changed? Using (all of) memory is a good thing. It can be used for caching.

Re: memory utilization

muruganantham raju — Sat, 10 Jul 2010 04:36:37 GMT

Hi,
Use glance or kmeminfo tool to monitor the memory utilization. 95% is not a healthy status at all. Of course the oracle processes are consuming more memory. See if any of the processes can be stopped for a while. Also, Check the swap memory in the system and configure extra swap if required to take off physical memory load.
Regards.
Muru

Re: memory utilization

Akif_1 — Sat, 10 Jul 2010 07:50:24 GMT

Hi CU,

Oracle is consuming more memory , If it is UNIX based OS check kernel parameter dbc_pct_max (default is 50).

Rgd's

Re: memory utilization

Dennis Handly — Sat, 10 Jul 2010 18:31:40 GMT

In order to check Oracle's shared memory usage, please provide: ipcs -ma