topic Re: Upper Paging Threshhold? in Operating System - Linux

Upper Paging Threshhold?

Jamie Campbell_2 — Mon, 13 Dec 2004 16:00:19 GMT

Several of our DL580s running Red Hat AS 2.1 are experiencing 100 or more page faults per second. This seems excessive, but, since these are my only experience with DL580s, I'm not sure what to expect. Does anyone have a recommended upper threshhold for page faults on a DL580?

Thanks in advance.

Re: Upper Paging Threshhold?

Steven E. Protter — Mon, 13 Dec 2004 16:11:40 GMT

Page faults are not an issue. Its part of normal operations with virutal memory machines.

The question is are you paging? If you have a high page rate then you need more memory.

SEP

Re: Upper Paging Threshhold?

Chris Xu — Mon, 13 Dec 2004 16:22:42 GMT

Check out the documentations at /usr/src/linux-2.4/Documentation/sysctl, especially vm.txt. I have a system like yours (DL580, AS 2.1), but I don't have the same problem with page faults. Well, hope this leads you to the right direction.

Chris

Re: Upper Paging Threshhold?

Vitaly Karasik_1 — Tue, 14 Dec 2004 03:44:28 GMT

See for more info:

http://www.redhat.com/magazine/001nov04/features/vm/ Understanding Virtual Memory