Subject: Re: tuning for small memory machines
To: Simon Burge <simonb@wasabisystems.com>
From: Wojciech Puchar <wojtek@tensor.3miasto.net>
List: tech-kern
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