Re: Autotune swappiness01

[Clemens Schwaighofer <cs@tequila.co.jp>]

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Con Kolivas wrote:
| Andrew Morton writes:

|> Yes, I think 60% is about right for a 512-768M box.  Too high for the
|> smaller machines, too low for the larger ones.
|
|
| Sigh..
| I have a 1Gb desktop machine that refuses to keep my applications in ram
| overnight if I have a swappiness higher than the default so I think lots
| of desktop users with more ram will be unhappy with higher settings.

I have 1 GB and I had a setting of 51 (seemed to be perhaps gentoo
default or so) and I especially after a weekend (2 days off) it is
always the "monday-morning-swap-hell" where I have to wait 5min until he
swapped in the apps he swapped out during weekend.

I changed that to 20 now, but I don't know if this will make things
worse or better.

|> More intelligent selection of the initial value is needed.
|
| Perhaps, but I really doubt desktop users running mainline would be
| happy about it going significantly higher.

no, but an already diskussed feature that would know, not to swap out
much used apps (eg mozilla which is used all the time, or openoffice)
during night or long idle times, if not _really_ needed.

- --
Clemens Schwaighofer - IT Engineer & System Administration
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