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From: Ingo Molnar <mingo@elte.hu>
To: Pierre Peiffer <pierre.peiffer@bull.net>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@osdl.org>,
	Ulrich Drepper <drepper@redhat.com>,
	Jakub Jelinek <jakub@redhat.com>
Subject: Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
Date: Tue, 16 Jan 2007 10:44:50 +0100	[thread overview]
Message-ID: <20070116094450.GB11543@elte.hu> (raw)
In-Reply-To: <45AC8E2A.3060708@bull.net>


* Pierre Peiffer <pierre.peiffer@bull.net> wrote:

> The modified hackbench is available here:
> 
> http://www.bullopensource.org/posix/pi-futex/hackbench_pth.c

cool!

> I've run this bench 1000 times with pipe and 800 groups.
> Here are the results:
> 
> Test1 - with simple list (i.e. without any futex patches)
> =========================================================
> Latency (s)      min      max      avg      stddev
>                 26.67    27.89    27.14        0.19

> Test2 - with plist (i.e. with only patch 1/4 as is)
>                 26.87    28.18    27.30        0.18

> Test3 - with plist but all SHED_OTHER registered
>                 26.74    27.84    27.16        0.18

ok, seems like the last one is the winner - it's the same as unmodified, 
within noise.

	Ingo

  reply	other threads:[~2007-01-16  9:49 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-09 16:15 Pierre Peiffer
2007-01-11 17:47 ` Ulrich Drepper
     [not found]   ` <20070111134615.34902742.akpm@osdl.org>
2007-01-12  7:53     ` Pierre Peiffer
2007-01-12  7:58       ` Ingo Molnar
2007-01-16  8:34         ` Pierre Peiffer
2007-01-16  9:44           ` Ingo Molnar [this message]
2007-01-16 15:14           ` Ulrich Drepper
2007-01-16 15:40             ` Ingo Molnar
2007-01-16 17:46               ` Ulrich Drepper
2007-01-16 17:50                 ` Ingo Molnar
2007-01-17  7:50                   ` Pierre Peiffer

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