inode/dentry pressure

[Rik van Riel <riel@conectiva.com.br>]

Hi,

since the inode and dentry cache memory usage and the way this
memory is reaped by kswapd are still very fragile and these
caches often eat as much as 50% of system memory on normal
desktop systems I think we need to come up with a real solution
to this problem.

A quick fix would be to always try and reap inode and dentry
cache memory whenever these two eat over 10% of memory and let
the normal VM path eat from them when they're consuming less,
but since this could break in other situations I'm asking here
if anybody else has a real solution...

If we cannot find an easy to implement Real Solution(tm) we
should probably go for the 10% limit in 2.4 and implement the
real solution in 2.5; if anybody has a 2.4-attainable idea
I'd like to hear about it ;)

regards,

Rik
--
Linux MM bugzilla: http://linux-mm.org/bugzilla.shtml

Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

		http://www.surriel.com/
http://www.conectiva.com/	http://distro.conectiva.com/


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