MailScanner and RHEL 3

[mailscanner-user]

Trever Furnish <TGFurnish at HERFFJONES.COM> wrote:
> Ditto.
>
> I have the same problem on a compaq dl380 g3 with 1GB of RAM and on my
> workstation at home.  I went straight from redhat 7.2 to redhat 9,
> then to RHEL3 - the same hardware running rh7.2 never had an issue,
> so I've always thought it was because of the switch in memory
> management code RH did starting with 7.3.
>
> On my mailscanner system, performance increased greatly after I just
> turned off swap entirely.  Before that performance would be ok till
> memory approached the max of physical ram.  Buffer cache always
> chewed up way more than I wanted it to, and so far as I know the
> amount of buffer cache used isn't tunable within RHEL3.
>
> I don't know that buffer cache accounts for the whole problem though
> - I had more swap used than I had buffer cache in use, so I think
> there's an issue with deciding *when* to swap and *when* to unswap.
> :-(
>
> Although I've been *very* happy with rhel3 since I turned off the
> swap, I was awfully disappointed to find this bug still seemingly
> present.
>
If the RHEL kernel has these memory issues, it should be possible to just
use a standard, non-RH kernel instead, as these problems are not reported
from other linux'es.

Hopefully, RHEL is still linux?

Leif

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