linux-kernel - Re: No, really, stop trying to delete slab until you've finished making slub perform as well

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Date:	Mon, 04 Aug 2008 11:02:29 -0500
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Rik van Riel <riel@...hat.com>
CC:	Matthew Wilcox <matthew@....cx>,
	Pekka Enberg <penberg@...helsinki.fi>,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, Mel Gorman <mel@...net.ie>,
	andi@...stfloor.org
Subject: Re: No, really, stop trying to delete slab until you've finished
 making slub perform as well

Rik van Riel wrote:

> I guess you could bypass the queueing on free for objects that
> come from a "local" SLUB page, only queueing objects that go
> onto remote pages.

Tried that already. The logic to decide if an object is local is creating
significant overhead. Plus you need queues for the remote nodes. Back to alien
queues?


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