High mem utilization on 5.3

[Joshua Rock]

I have a server running 5.3 that is only managing 20 DL360s and DL380s. I don't have Virtual Machine manager running. The server is still using 900+ MB of RAM consistently. Any suggestions to troubleshooting why its eating up so much memory?

[Robert Walker_8]

Gday Joshua,

Any Linux will utilise free memory to about 90% - this is the universal file cache found in many OS's including Windows (to a degree).

It is generally pushed down when the OS needs memory for other tasks.

You should be able to restrict the cache size (see below /proc/vm/pagecache) or drop it as per below - if it is causing problems?? but normally just left to its own devices.

You can drop the cache by the following:

# sync #
# echo 1 > /proc/sys/vm/drop_caches

1 = Free Page cache
2 = Dentries and Inodes
3 = All of the above

See for Redhat specific which should give some info.
http://www.redhat.com/magazine/001nov04/features/vm/

Robert.

[JKytsi]

I just wonder where did You guess that Joshua has SIM installed on Linux ?

[Robert Walker_8]

Sorry, my mistake :( Mis-read title and was thinking of RHEL 5.3.

Still situation could be the same with windows or other OS's as principles somewhat similar in more modern systems - including OpenVMS. The method to resolve is different of course.

When you shutdown SIM does memory drop or does it stay the same? Are there any updates as could be memory leaks in application.

Isnt there a database as well required for SIM to operate, is that located on same server.

I suppose the big one will be if shutting down SIM seeing whether memory will drop - also is the growth within user space memory or kernel space?

Robert.

[Shane V]

Hi Joshua, just fixed the same issue on my SIM server a minute ago... try this and hopefully it will fix the problem. Mine went from 900MB to 260MB.

"Installing the SNMP service and going into the services properties, under the security tab and deselecting the 'Send Authentication trap' checkbox and restarting the SNMP and SIM services solved the 'mxdomainmgr spawning dozens of mxinventory processes' problem for me. "

thread in which i got this info:

http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1238537578520+28353475&threadId=510970

Hope it helps - Shane