linux-kernel - Re: [patch] SLQB slab allocator (try 2)

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Message-ID: <alpine.DEB.1.10.0902171120040.27813@qirst.com>
Date:	Tue, 17 Feb 2009 11:20:40 -0500 (EST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	Mel Gorman <mel@....ul.ie>, Nick Piggin <nickpiggin@...oo.com.au>,
	Nick Piggin <npiggin@...e.de>,
	Linux Memory Management List <linux-mm@...ck.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Lin Ming <ming.m.lin@...el.com>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
Subject: Re: [patch] SLQB slab allocator (try 2)

On Mon, 16 Feb 2009, Pekka Enberg wrote:

> Btw, Yanmin, do you have access to the tests Mel is running (especially the
> ones where slub-rvrt seems to do worse)? Can you see this kind of regression?
> The results make we wonder whether we should avoid reverting all of the page
> allocator pass-through and just add a kmalloc cache for 8K allocations. Or not
> address the netperf regression at all. Double-hmm.


Going to 8k for the limit beyond we pass through to the page allocator may
be the simplest and best solution. Someone please work on the page
allocator...

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