Re: [patch 00/19] Slab Fragmentation Reduction V14

[Pekka Enberg]

Christoph Lameter wrote:
> V13->V14
> - Rediff against linux-next on request of Andrew
> - TestSetPageLocked -> trylock_page conversion.
>
> Slab fragmentation is mainly an issue if Linux is used as a fileserver
> and large amounts of dentries, inodes and buffer heads accumulate. In some
> load situations the slabs become very sparsely populated so that a lot of
> memory is wasted by slabs that only contain one or a few objects. In
> extreme cases the performance of a machine will become sluggish since
> we are continually running reclaim without much succes.
> Slab defragmentation adds the capability to recover the memory that
> is wasted.

Applied, thanks!
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