From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Christoph Lameter <clameter@sgi.com>,
Pekka Enberg <penberg@cs.helsinki.fi>,
Steven Rostedt <rostedt@goodmis.org>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@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: Sat, 22 Dec 2007 00:17:28 +0100 [thread overview]
Message-ID: <20071221231728.GA28008@elte.hu> (raw)
In-Reply-To: <alpine.LFD.0.9999.0712211449320.21557@woody.linux-foundation.org>
* Linus Torvalds <torvalds@linux-foundation.org> wrote:
> And now, can the people who made the problem reports and complained
> about SLUB please test the patch - the ball is now in your court!
yep, and i ran a quick comparison test on a 2-core box with 3 kernels:
[ best of 5 runs in a row which had a relative jitter of less than 10% ]
MIN v2.6.24.slab v2.6.24.slub v2.6.24.slub.fix
----------------------------------------------------------
mmap: 429.00 402.00 ( -6%) 385.00 (-10%)
select: 11.38 10.46 ( -8%) 11.41 ( 0%)
proc-exec: 121.52 116.77 ( -3%) 120.77 ( 0%)
proc-fork: 106.84 106.19 ( 0%) 107.92 ( 1%)
syscall-open: 3.09 3.13 ( 1%) 3.25 ( 4%)
hackbench-50: 2.85 3.47 ( 21%) 2.88 ( 1%)
and the regression seems to be largely fixed! Not only is the hackbench
one fixed, but mmap shows an above-noise improvement as well.
Acked-by: Ingo Molnar <mingo@elte.hu>
And i hereby nominate Pekka as SLUB/SLAB co-maintainer and spokesperson
;-)
Ingo
next prev parent reply other threads:[~2007-12-21 23:21 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 [this message]
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
2007-12-21 22:56 ` Ingo Molnar
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