linux-kernel - Re: [RFC V2 SLEB 00/14] The Enhanced(hopefully) Slab Allocator

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Message-ID: <AANLkTilEIwPSN-stGGuu5wV4Q6Ty0GytNMpfq-vRpK_k@mail.gmail.com>
Date:	Tue, 25 May 2010 20:02:32 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Nick Piggin <npiggin@...e.de>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Christoph Lameter <cl@...ux.com>, linux-mm@...ck.org,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>,
	Zhang Yanmin <yanmin_zhang@...ux.intel.com>,
	Matthew Wilcox <willy@...ux.intel.com>,
	Matt Mackall <mpm@...enic.com>, Mel Gorman <mel@....ul.ie>
Subject: Re: [RFC V2 SLEB 00/14] The Enhanced(hopefully) Slab Allocator

Hi Nick,

On Tue, May 25, 2010 at 6:43 PM, Nick Piggin <npiggin@...e.de> wrote:
> As far as I can see, there was never a good reason to replace SLAB
> rather than clean up its code and make incremental improvements.

I'm not totally convinced but I guess we're about to find that out.
How do you propose we benchmark SLAB while we clean it up and change
things to make sure we don't make the same mistakes as we did with
SLUB (i.e. miss an important workload like TPC-C)?

                        Pekka
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