linux-kernel - Re: [tip:sched/urgent] sched: Fix select_idle_sibling() regression in selecting an idle SMT sibling

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Message-ID: <1324471944.10752.8.camel@twins>
Date:	Wed, 21 Dec 2011 13:52:24 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	alex shi <lkml.alex@...il.com>
Cc:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	efault@....de, alex.shi@...el.com, suresh.b.siddha@...el.com,
	tglx@...utronix.de, mingo@...e.hu,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:sched/urgent] sched: Fix select_idle_sibling() regression
 in selecting an idle SMT sibling

On Wed, 2011-12-21 at 20:33 +0800, alex shi wrote:
> > Fix it. Slightly bigger patch of cleaning all these goto's etc
> > is queued up for the next release.
> >
> 
> Even with this fix, the loopback netperf testing TCP-RR, still have
> about 5% regresion on our 2 socket * 8 cores SNB machine.
> which is your patchset includes all cleaning? wondering if that is helpful.

Sorry, but that question fails to parse here. What were you asking?
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