From: Mike Galbraith <efault@gmx.de>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
mingo@elte.hu, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] sched: Disable affine wakeups by default
Date: Mon, 26 Oct 2009 06:21:56 +0100 [thread overview]
Message-ID: <1256534516.7117.56.camel@marge.simson.net> (raw)
In-Reply-To: <20091025123319.2b76bf69@infradead.org>
On Sun, 2009-10-25 at 12:33 -0700, Arjan van de Ven wrote:
> we may not agree on what to do if there's no completely free logical
> cpu, but a much lighter loaded one instead.
> but first we need to let code speak ;)
BTW, we agree here too, it's just that cache traffic generated by
ripping high frequency buddies apart can be hugely expensive, so much
caution required. Someone needs to get off his duff, and invent ram
that doesn't suck.
-Mike
next prev parent reply other threads:[~2009-10-26 5:21 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-24 19:58 [PATCH 1/3] sched: Enable wake balancing for the SMT/HT domain Arjan van de Ven
2009-10-24 20:04 ` [PATCH 2/3] sched: Add aggressive load balancing for certain situations Arjan van de Ven
2009-10-24 20:07 ` [PATCH 3/3] sched: Disable affine wakeups by default Arjan van de Ven
2009-10-25 6:55 ` Mike Galbraith
2009-10-25 16:51 ` Arjan van de Ven
2009-10-25 17:38 ` Mike Galbraith
2009-10-25 19:33 ` Arjan van de Ven
2009-10-25 22:04 ` Mike Galbraith
2009-10-26 1:53 ` Peter Zijlstra
2009-10-26 4:38 ` Mike Galbraith
2009-10-26 4:52 ` Arjan van de Ven
2009-10-26 5:08 ` Mike Galbraith
2009-10-26 5:36 ` Arjan van de Ven
2009-10-26 5:47 ` Mike Galbraith
2009-10-26 5:57 ` Mike Galbraith
2009-10-26 7:01 ` Ingo Molnar
2009-10-26 7:05 ` Arjan van de Ven
2009-10-26 11:33 ` Suresh Siddha
2009-11-10 21:59 ` Peter Zijlstra
2009-11-11 6:01 ` Arjan van de Ven
2009-10-27 14:35 ` Mike Galbraith
2009-10-28 7:25 ` Mike Galbraith
2009-10-28 18:36 ` Mike Galbraith
2009-11-04 19:33 ` [tip:sched/core] sched: Check for an idle shared cache in select_task_rq_fair() tip-bot for Mike Galbraith
2009-11-04 20:37 ` Mike Galbraith
2009-11-04 21:41 ` Mike Galbraith
2009-11-05 9:30 ` Ingo Molnar
2009-11-05 9:57 ` Mike Galbraith
2009-11-05 10:00 ` Mike Galbraith
2009-11-06 7:09 ` [tip:sched/core] sched: Fix affinity logic " tip-bot for Mike Galbraith
2009-10-26 5:21 ` Mike Galbraith [this message]
2009-10-25 8:01 ` [PATCH 3/3] sched: Disable affine wakeups by default Peter Zijlstra
2009-10-25 8:01 ` [PATCH 2/3] sched: Add aggressive load balancing for certain situations Peter Zijlstra
2009-10-25 11:48 ` Peter Zijlstra
2009-10-25 8:03 ` [PATCH 1/3] sched: Enable wake balancing for the SMT/HT domain Peter Zijlstra
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