From: Paul Jackson <pj@engr.sgi.com>
To: Andy Lutomirski <luto@myrealbox.com>
Cc: kenneth.w.chen@intel.com, torvalds@osdl.org,
nickpiggin@yahoo.com.au, akpm@osdl.org,
linux-kernel@vger.kernel.org
Subject: Re: [patch] sched: auto-tune migration costs [was: Re: Industry db benchmark result on recent 2.6 kernels]
Date: Sun, 3 Apr 2005 21:36:36 -0700 [thread overview]
Message-ID: <20050403213636.05cddf52.pj@engr.sgi.com> (raw)
In-Reply-To: <4250C19F.9070801@myrealbox.com>
Andy wrote:
> Not that I really know what I'm talking about here, but this sounds
> highly parallelizable.
I doubt it. If we are testing the cost of a migration between CPUs
alpha and beta, and at the same time testing betweeen CPUs gamma and
delta, then often there will be some hardware that is shared by both the
<alpha, beta> path, and the <gamma, delta> path. This would affect the
test results.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@engr.sgi.com> 1.650.933.1373, 1.925.600.0401
next prev parent reply other threads:[~2005-04-04 4:38 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-02 1:00 Industry db benchmark result on recent 2.6 kernels Chen, Kenneth W
2005-04-02 2:12 ` Nick Piggin
2005-04-02 14:53 ` [patch] sched: auto-tune migration costs [was: Re: Industry db benchmark result on recent 2.6 kernels] Ingo Molnar
2005-04-02 21:22 ` Paul Jackson
2005-04-03 5:53 ` Paul Jackson
2005-04-03 7:04 ` Ingo Molnar
2005-04-03 8:15 ` Paul Jackson
2005-04-03 11:34 ` Paul Jackson
2005-04-03 14:12 ` Paul Jackson
2005-04-03 15:01 ` Ingo Molnar
2005-04-03 22:30 ` Paul Jackson
2005-04-05 6:53 ` [patch] sched: auto-tune migration costs Andi Kleen
2005-04-05 7:20 ` Paul Jackson
2005-04-03 15:24 ` [patch] sched: auto-tune migration costs [was: Re: Industry db benchmark result on recent 2.6 kernels] Ingo Molnar
2005-04-03 23:08 ` Paul Jackson
2005-04-04 2:08 ` Nick Piggin
2005-04-04 3:55 ` Paul Jackson
2005-04-04 5:45 ` Ingo Molnar
2005-04-04 5:50 ` Paul Jackson
2005-04-04 5:56 ` Nick Piggin
2005-04-04 6:38 ` Paul Jackson
2005-04-04 6:48 ` Ingo Molnar
2005-04-04 7:37 ` Paul Jackson
2005-04-04 6:50 ` Ingo Molnar
2005-04-04 7:27 ` Paul Jackson
2005-04-03 14:29 ` Ingo Molnar
2005-04-03 23:15 ` Paul Jackson
2005-04-04 1:31 ` Chen, Kenneth W
2005-04-04 6:24 ` Ingo Molnar
2005-04-04 6:39 ` Ingo Molnar
2005-04-06 0:08 ` Chen, Kenneth W
2005-04-04 4:25 ` Andy Lutomirski
2005-04-04 4:36 ` Paul Jackson [this message]
2005-04-04 1:11 ` Chen, Kenneth W
2005-04-04 11:37 ` Ingo Molnar
2005-04-04 17:27 ` Paul Jackson
2005-04-05 1:43 ` Chen, Kenneth W
2005-04-05 1:49 ` Ingo Molnar
2005-04-05 3:04 ` Ingo Molnar
2005-04-06 3:33 ` Chen, Kenneth W
2005-04-06 6:45 ` Ingo Molnar
2005-04-08 2:27 ` Chen, Kenneth W
2005-04-03 9:01 ` Paul Jackson
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