Re: [PATCH 1/3] slub: set a criteria for slub node partial adding

[David Rientjes]

On Wed, 14 Dec 2011, Shaohua Li wrote:

> if vast majority of allocation needs picking from partial list of node,
> the list_lock will have contention too. But I'd say avoiding the slab
> thrashing does increase fastpath.

Right, that's why my 2009 patchset would attempt to grab the partial slab 
with the highest number of free objects to a certain threshold before 
falling back to others and it improved performance somewhat.  This was 
with the per-node partial lists, however, and the slowpath has been 
significantly rewritten since then.
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