From: Arjan van de Ven <arjan@infradead.org>
To: "Pekka Enberg" <penberg@cs.helsinki.fi>
Cc: "Ingo Molnar" <mingo@elte.hu>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Matt Mackall" <mpm@selenic.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
LKML <linux-kernel@vger.kernel.org>,
"Christoph Lameter" <clameter@sgi.com>
Subject: Re: tipc_init(), WARNING: at arch/x86/mm/highmem_32.c:52, [2.6.24-rc4-git5: Reported regressions from 2.6.23]
Date: Sun, 9 Dec 2007 07:59:21 -0800 [thread overview]
Message-ID: <20071209075921.4a0e1240@laptopd505.fenrus.org> (raw)
In-Reply-To: <84144f020712090020o5bdeb54fqaa9e6578bd066f29@mail.gmail.com>
On Sun, 9 Dec 2007 10:20:19 +0200
"Pekka Enberg" <penberg@cs.helsinki.fi> wrote:
\
> Now, while SLAB code is "pleasant and straightforward code" (thanks,
> btw) for UMA, it's really hairy for NUMA plus the "alien caches" eat
> tons of memory
.. and they make slab slower on numa systems for database workloads
(I'm sure they do fine for SGI's customers HPC load though))
>(which is why Christoph wrote SLUB in the first place,
> the current code in SLAB is mostly unfixable due to its *queuing*
> nature).
To be honest, a SLAB without the alien stuff might be one of the best
performers today .... ;)
(on database loads.. where slub is quite a disaster as everyone knows)
--
If you want to reach me at my work email, use arjan@linux.intel.com
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
next prev parent reply other threads:[~2007-12-09 16:00 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-08 2:40 2.6.24-rc4-git5: Reported regressions from 2.6.23 Rafael J. Wysocki
2007-12-08 6:53 ` Fabio Comolli
2007-12-08 8:28 ` Ingo Molnar
2007-12-08 9:23 ` Andrew Morton
2007-12-08 22:11 ` Rafael J. Wysocki
2007-12-08 9:29 ` Andrew Morton
2007-12-08 22:17 ` Rafael J. Wysocki
2007-12-08 9:30 ` tipc_init(), WARNING: at arch/x86/mm/highmem_32.c:52, [2.6.24-rc4-git5: Reported regressions from 2.6.23] Ingo Molnar
2007-12-08 10:11 ` Andrew Morton
2007-12-08 16:37 ` Matt Mackall
2007-12-08 17:47 ` Linus Torvalds
2007-12-08 17:54 ` Linus Torvalds
2007-12-08 18:09 ` Andrew Morton
2007-12-08 18:37 ` Linus Torvalds
2007-12-08 19:52 ` Ingo Molnar
2007-12-08 20:29 ` Ingo Molnar
2007-12-09 8:20 ` Pekka Enberg
2007-12-09 8:50 ` Ingo Molnar
2007-12-09 9:18 ` Pekka Enberg
2007-12-09 11:51 ` Ingo Molnar
2007-12-09 12:34 ` Ingo Molnar
2007-12-13 22:07 ` Christoph Lameter
2007-12-09 15:59 ` Arjan van de Ven [this message]
2007-12-11 6:27 ` Dave Jones
2007-12-11 8:52 ` Ingo Molnar
2007-12-11 19:03 ` Peter Zijlstra
2007-12-14 4:07 ` Christoph Lameter
2007-12-14 7:16 ` Eric Dumazet
2007-12-14 12:49 ` Ingo Molnar
2007-12-17 19:54 ` Christoph Lameter
2007-12-09 7:58 ` Ingo Molnar
2007-12-09 14:17 ` Rafael J. Wysocki
2007-12-08 18:33 ` Matt Mackall
2007-12-08 19:00 ` Matt Mackall
2007-12-09 8:33 ` Pekka Enberg
2007-12-13 22:03 ` Christoph Lameter
2007-12-08 9:36 ` 2.6.24-rc4-git5: Reported regressions from 2.6.23 Andrew Morton
2007-12-08 10:12 ` Andreas Mohr
2007-12-08 10:20 ` Andrew Morton
2007-12-08 10:28 ` Matthew Garrett
2007-12-08 10:55 ` Andreas Mohr
2007-12-09 15:46 ` Tejun Heo
2007-12-09 19:59 ` Andreas Mohr
2007-12-09 6:52 ` Tejun Heo
2007-12-09 14:20 ` Rafael J. Wysocki
2007-12-09 15:11 ` Tejun Heo
2007-12-08 9:42 ` Andrew Morton
2007-12-08 18:57 ` Roland Dreier
2007-12-08 19:40 ` Theodore Tso
2007-12-08 19:55 ` Ingo Molnar
2007-12-08 22:30 ` Rafael J. Wysocki
2007-12-09 2:15 ` Theodore Tso
2007-12-13 10:49 ` Takashi Iwai
2007-12-20 15:42 ` Takashi Iwai
2007-12-08 9:46 ` Andrew Morton
2007-12-08 15:49 ` Alan Stern
2007-12-08 9:52 ` Andrew Morton
2007-12-09 7:00 ` Tejun Heo
2007-12-09 13:42 ` Alan Cox
2007-12-09 15:09 ` Tejun Heo
2007-12-09 15:25 ` Alan Cox
2007-12-09 15:39 ` Tejun Heo
2007-12-09 18:36 ` Linus Torvalds
2007-12-09 21:54 ` Alan Cox
2007-12-09 18:41 ` Linus Torvalds
2007-12-09 22:01 ` Alan Cox
2007-12-09 22:51 ` Ray Lee
2007-12-10 1:57 ` Linus Torvalds
2007-12-10 3:28 ` Alan Cox
2007-12-10 3:38 ` Alan Cox
2007-12-10 15:38 ` Linus Torvalds
2007-12-10 8:21 ` Ingo Molnar
2007-12-10 8:27 ` Tejun Heo
2007-12-10 8:41 ` Ingo Molnar
2007-12-08 10:44 ` Richard Purdie
2007-12-08 22:32 ` Rafael J. Wysocki
2007-12-09 11:54 ` Andrew Morton
2007-12-09 12:05 ` Ingo Molnar
2007-12-09 14:24 ` Rafael J. Wysocki
2007-12-10 20:42 ` Ingo Molnar
2007-12-10 20:57 ` Guillaume Chazarain
2007-12-10 20:59 ` Andrew Morton
2007-12-10 22:45 ` Ingo Molnar
2007-12-10 23:04 ` Ingo Molnar
2007-12-10 23:34 ` Stefano Brivio
2007-12-10 23:53 ` Guillaume Chazarain
2007-12-11 8:48 ` Ingo Molnar
2007-12-10 23:56 ` Arjan van de Ven
2007-12-11 0:01 ` Guillaume Chazarain
2007-12-11 1:06 ` Arjan van de Ven
2007-12-11 8:43 ` Ingo Molnar
2007-12-11 9:01 ` Ingo Molnar
2007-12-11 21:10 ` Stefano Brivio
2007-12-19 0:58 ` Stefano Brivio
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