Re: RHEL 4 improvement in use of swap? (compared to RHEL 3)

[Sean O Sullivan <seanos seanos net>]

Brian Long wrote:
> This was a problem in the original RHEL 3 settings
> for /proc/sys/vm/pagecache.  In one of the updates, Red Hat changed the
> defaults to "1 15 100" (I forget the original defaults).  Have you tried
> re-enabling swap with U6?  Because of this VM setting, the newer kernels
> should not exhibit the behavior you describe.

Ah, thanks - I believe this may be the cause of an issue I'm seeing 
(RHEL 3U3).

# cat /proc/sys/vm/pagecache
1       15      30


Updating the kernel on these machines (or updating them to U6) is not 
yet an option, I'm wondering if I was to echo the settings you mention 
above, would this work, or just possibly break something else do you 
happen to know?

Regards,

Sean