linux-kernel - Re: Major regression on hackbench with SLUB (more numbers)

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Message-ID: <Pine.LNX.4.64.0712211422540.3795@schroedinger.engr.sgi.com>
Date:	Fri, 21 Dec 2007 14:27:09 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: Major regression on hackbench with SLUB (more numbers)

On Fri, 21 Dec 2007, Peter Zijlstra wrote:

> BTW, does /proc/slabinfo exist again? I thought we set that as a
> requirement for SLUB to be the default and a full replacement for SLAB.

Well the information that would be exposed in /proc/slabinfo would only be 
faked up stuff from SLUB. The queues that are described in /proc/slabinfo do not 
exist f.e. (tunables do not make sense) and there are more details available via /sys/kernel/slab.

There is a discussion on linux-mm with some of the people working on tools 
to make these to use the information that SLUB provides.

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