linux-kernel - Re: commit e9e9250b: sync wakeup bustage when waker is an RT task

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Message-Id: <1275329008.8096.104.camel@marge.simson.net>
Date:	Mon, 31 May 2010 20:03:28 +0200
From:	Mike Galbraith <efault@....de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: commit e9e9250b: sync wakeup bustage when waker is an RT task

On Mon, 2010-05-31 at 16:28 +0200, Peter Zijlstra wrote:
> On Mon, 2010-05-31 at 15:56 +0200, Mike Galbraith wrote:
>  
> > > Does the below work?
> > 
> > Had to make a dinky adjustment for x86-tip-rt33, but yeah, the horrid
> > latencies are gone.  (hm, skinnier than expected too)
> 
> 
> Here's one that should be even skinnier ;-)

Cool, box is into skeletal.

> I knew I already had an accessor: power_of(), also, I duplicated the
> cpu_power variable inside struct rq so we don't have to chase three
> pointers to get it.

Looks good, but I'll retest anyway. 

	-Mike


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