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From: Ingo Molnar <mingo@elte.hu>
To: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Cc: Nicholas Miell <nmiell@comcast.net>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.6.23
Date: Thu, 11 Oct 2007 15:32:11 +0200	[thread overview]
Message-ID: <20071011133211.GA5510@elte.hu> (raw)
In-Reply-To: <1192070057.3019.17.camel@ymzhang>


* Zhang, Yanmin <yanmin_zhang@linux.intel.com> wrote:

> > ( Config is at http://redhat.com/~mingo/misc/config, system is Core2Duo
> >   1.83 GHz, mysql-5.0.45, glibc-2.6. Nothing fancy either in the config
> >   nor in the setup - everything is pretty close to the defaults. )
>
> I used FedoraCore 8 Test2 distribution, so glibc-2.6.90-13 already 
> fixed the old malloc scalability issue. Cpu is 2.66GHZ quad core, 2 
> physical processor, totally 8 cores. The regression is about 28%.

thanks for confirming this! I've updated glibc and mysql and now i can 
reproduce something similar. (I have a theory about the reason of this 
regression, and i'm working on a test-patch.)

	Ingo

  reply	other threads:[~2007-10-11 13:32 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-09 20:54 Linux 2.6.23 Linus Torvalds
2007-10-10  6:12 ` Nicholas Miell
2007-10-10 10:14   ` Ingo Molnar
2007-10-11  1:20     ` Nicholas Miell
2007-10-11  2:34     ` Zhang, Yanmin
2007-10-11 13:32       ` Ingo Molnar [this message]
2007-10-11  9:16     ` Nick Piggin
2007-10-12  5:46       ` Ingo Molnar
2007-10-11 14:15         ` Nick Piggin
2007-10-12 12:21         ` Bill Davidsen
2007-10-10  7:44 ` René Rebe
2007-10-10  8:37   ` Alexey Dobriyan
2007-10-10  9:12     ` Michael Tokarev
2007-10-10 10:36       ` Alexey Dobriyan
2007-10-10 10:53         ` Jan Engelhardt
2007-10-10 11:13           ` Michael Tokarev
2007-10-10 19:14   ` Ingo Molnar
2007-10-10 19:26     ` Michael Tokarev
2007-10-10 20:04     ` Andi Kleen
2007-10-10 23:27     ` Krzysztof Halasa

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