Subject: Re: tuning for small memory machines
To: Simon Burge <simonb@wasabisystems.com>
From: Wojciech Puchar <wojtek@tensor.3miasto.net>
List: tech-perform
Date: 11/27/2002 09:59:53
>         55.647u   8.334s  1:27.26 73.3% 0+0k 0+56io  1797pf+1w
>         55.735u   7.553s  1:22.23 76.9% 0+0k 0+54io  1408pf+1w
>         55.795u   8.724s  1:26.39 74.6% 0+0k 0+54io  1926pf+1w
>
>     vm.anonmax = 100
>         55.642u   8.270s  1:24.14 75.9% 0+0k 0+65io  1612pf+1w
>         55.534u   9.216s  1:27.40 74.0% 0+0k 0+64io  1927pf+1w
>         55.312u   8.331s  1:24.15 75.6% 0+0k 0+64io  1604pf+1w
>
> I'm running with vm.anonmax=95 now.
>
> Now, the question is should we automatically tune vm.anonmax up high
> for low-memory situations?  And what would qualify as a "low-memory"
> situation?
>
for sure until memory is at least 32 (maybe 24) MB filemax should be this
10% and 5% min or even less. for even 1GB RAM i think defaults are too
large, 20% filemax is OK. it can be ALWAYS tuned up by user in case it's fileserver
etc.

i don't know why anonmax is only 80% and not 90-95 by default