Date: Fri, 21 Dec 2007 17:52:44 -0500 (EST)
From: Steven Rostedt <rostedt@goodmis.org>
To: Christoph Lameter <clameter@sgi.com>
cc: Pekka Enberg <penberg@cs.helsinki.fi>, Ingo Molnar <mingo@elte.hu>,
       LKML <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Peter Zijlstra <a.p.zijlstra@chello.nl>,
       Christoph Hellwig <hch@infradead.org>,
       "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: Major regression on hackbench with SLUB (more numbers)
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On Fri, 21 Dec 2007, Christoph Lameter wrote:

> Actually thanks for pointing that out Pekka.... Here is a patch that takes
> the regression almost completely away (Too much jetlag combined with flu
> seems to have impaired my thinking I should have seen this earlier). I
> still need to run my slab performance tests on this. But hackbench
> improves.
>
>
> SLUB: Improve hackbench speed
>
> Increase the mininum number of partial slabs to keep around and put
> partial slabs to the end of the partial queue so that they can add
> more objects.
>
> Signed-off-by: Christoph Lameter <clameter@sgi.com>
>

FYI, I'm currently on holiday till Jan 2cd, and I also lost access to the
machine I did the orignal benchmarks on.  But I'll try to reserve it again
after the New Year, and I will run the benchmarks including this patch and
report my findings.

Thanks,

-- Steve

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