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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)
Date: Fri, 21 Dec 2007 17:52:44 -0500 (EST)	[thread overview]
Message-ID: <Pine.LNX.4.58.0712211751190.6085@gandalf.stny.rr.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0712211435250.3795@schroedinger.engr.sgi.com>


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


  parent reply	other threads:[~2007-12-21 22:55 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-07 17:50 Major regression on hackbench with SLUB Steven Rostedt
2007-12-07 17:55 ` Ingo Molnar
2007-12-07 17:59 ` Linus Torvalds
2007-12-07 18:36   ` Linus Torvalds
2007-12-07 18:58     ` Steven Rostedt
2007-12-08 22:16     ` Steven Rostedt
2007-12-10  7:38       ` Björn Steinbrink
2007-12-10 14:00         ` Steven Rostedt
2007-12-09  0:28     ` Steven Rostedt
2007-12-13 22:11     ` Christoph Lameter
2007-12-11 14:33 ` Major regression on hackbench with SLUB (more numbers) Ingo Molnar
2007-12-13 22:22   ` Christoph Lameter
2007-12-14  4:24     ` Christoph Lameter
2007-12-14  6:15       ` Steven Rostedt
2007-12-21 12:09       ` Ingo Molnar
2007-12-21 12:26         ` Ingo Molnar
2007-12-21 16:26           ` Christoph Lameter
2007-12-21 16:33             ` Ingo Molnar
2007-12-21 21:56               ` Christoph Lameter
2007-12-21 16:18         ` Christoph Lameter
2007-12-21 16:44           ` Linus Torvalds
2007-12-21 22:11             ` Christoph Lameter
2007-12-21 22:16               ` Peter Zijlstra
2007-12-21 22:17                 ` Peter Zijlstra
2007-12-21 22:27                   ` Christoph Lameter
2007-12-21 22:54                     ` Ingo Molnar
2007-12-21 23:20                       ` David Miller
2007-12-22  9:45                         ` Ingo Molnar
2007-12-24 19:24                           ` Christoph Lameter
2007-12-21 23:27                       ` Andrew Morton
2007-12-21 23:51                       ` Christoph Lameter
2007-12-22  0:28                       ` Andi Kleen
2007-12-22  0:33                         ` Chuck Ebbert
2007-12-22  2:19                         ` Matt Mackall
2007-12-22  2:44                           ` Andi Kleen
2007-12-22 10:03                         ` Ingo Molnar
2007-12-22 12:37                           ` Andi Kleen
2007-12-22 12:51                             ` Pekka Enberg
2007-12-22 12:54                               ` Andi Kleen
2007-12-22 13:27                                 ` Pekka Enberg
2007-12-22 13:01                             ` Alexey Dobriyan
2007-12-22 18:01                           ` Linus Torvalds
2007-12-22 19:09                             ` Ingo Molnar
2007-12-22 19:29                               ` Ingo Molnar
2007-12-22 22:52                               ` Jason L Tibbitts III
2007-12-24  3:59                                 ` Alessandro Suardi
2007-12-22 19:25                             ` Theodore Tso
2007-12-22 21:00                               ` Linus Torvalds
2007-12-22 21:50                                 ` Al Viro
2007-12-22 23:29                                   ` Al Viro
2007-12-22 22:10                                 ` Willy Tarreau
2007-12-23  0:59                                   ` Steven Rostedt
2007-12-23  5:12                                     ` Willy Tarreau
2007-12-23 14:15                                       ` Andi Kleen
2007-12-24  3:45                                         ` Theodore Tso
2007-12-24 19:21                                           ` Christoph Lameter
2007-12-24 23:37                                             ` Theodore Tso
2007-12-25  3:34                                               ` Andi Kleen
2008-01-01 12:47                                                 ` Theodore Tso
2008-01-01 15:19                                                   ` Andi Kleen
2008-01-01 16:23                                                   ` [patch] slub: provide /proc/slabinfo Ingo Molnar
2008-01-05  0:27                                                     ` Arjan van de Ven
2008-01-05  0:49                                                       ` Linus Torvalds
2007-12-26 21:31                                               ` Major regression on hackbench with SLUB (more numbers) Christoph Lameter
2007-12-26 22:16                                                 ` Al Viro
2007-12-27  5:51                                                   ` Christoph Lameter
2007-12-27 20:28                                                     ` SLUB sysfs support Christoph Lameter
2007-12-27 22:59                                                       ` Al Viro
2007-12-27 23:22                                                         ` Christoph Lameter
2007-12-27 23:53                                                           ` Christoph Lameter
2007-12-27 23:58                                                             ` Al Viro
2007-12-28  0:02                                                               ` Christoph Lameter
2007-12-28  0:45                                                                 ` Al Viro
2007-12-28  2:19                                                                   ` Christoph Lameter
2007-12-28  3:26                                                                     ` Al Viro
2008-01-02 20:25                                                                       ` Christoph Lameter
2007-12-27 23:54                                                           ` Al Viro
2007-12-28  9:00                                                   ` Major regression on hackbench with SLUB (more numbers) Ingo Molnar
2007-12-28 14:52                                                     ` Steven Rostedt
2007-12-22 19:46                             ` slabtop replacement was " Andi Kleen
2007-12-22 23:28                               ` Karol Swietlicki
2007-12-29 18:08                                 ` Karol Swietlicki
2007-12-21 22:49               ` Linus Torvalds
2007-12-21 17:44         ` Pekka Enberg
2007-12-21 22:22           ` Christoph Lameter
2007-12-21 22:37             ` Christoph Lameter
2007-12-21 22:51               ` Linus Torvalds
2007-12-21 23:17                 ` Ingo Molnar
2007-12-21 23:40                   ` Pekka Enberg
2007-12-21 23:54                   ` Christoph Lameter
2007-12-22  0:02                     ` Chuck Ebbert
2007-12-21 22:52               ` Steven Rostedt [this message]
2007-12-21 22:56               ` Ingo Molnar

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