On Sat, Jul 07, 2007 at 12:45:35PM +0200, JA?rn Engel wrote:

On Fri, 6 July 2007 13:40:03 -0700, Christoph Lameter wrote:

quoted

An interesting topic is certainly

1. Large buffer support

2. icache/dentry/buffer_head defragmentation.

Oh certainly!  I should dust off my dcache_static patch.  Some dentries
are hands-off for the shrinker, basically mountpoints and tmpfs.  The
patch moves those to a seperate slab cache.

I doubt there's enough of those to make any difference - putting all
the directories into another slab did little to reduce fragmentation
(~18 months ago we tried that), so I don't think that this would help
at all...

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group

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