Re: [patch 21/21] slab defrag: Obsolete SLAB

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On Sat, 10 May 2008 11:53:30 +0200
Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> Christoph Lameter wrote:
> > Slab defragmentation introduces new functionality not supported by SLAB and
> > SLOB.
> > 
> > Make slab depend on EXPERIMENTAL and note its obsoleteness and that
> > various functionality is not supported by SLAB.
> > 
> > Also update SLOB's description a bit to indicate that certain OS
> > support is limited by design.
> 
> What about the TPC performance regressions? My understanding was that
> slub still performed worse in the "object allocated on one CPU, freed on
> the other CPU" type workloads due to less batching.

Which can be the majority of object allocations and frees in some
workloads.  It definately wants fixing.

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