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
next prev parent 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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