linux-kernel - Re: [RFC II] Splitting scheduler into two halves

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Message-ID: <1395990322.4877.22.camel@marge.simpson.net>
Date:	Fri, 28 Mar 2014 08:05:22 +0100
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Yuyang Du <yuyang.du@...el.com>
Cc:	Ingo Molnar <mingo@...nel.org>,
	"peterz@...radead.org" <peterz@...radead.org>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"morten.rasmussen@....com" <morten.rasmussen@....com>,
	"Van De Ven, Arjan" <arjan.van.de.ven@...el.com>,
	"Brown, Len" <len.brown@...el.com>,
	"Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
	"Cox, Alan" <alan.cox@...el.com>
Subject: Re: [RFC II] Splitting scheduler into two halves

On Fri, 2014-03-28 at 07:00 +0800, Yuyang Du wrote: 
> On Fri, Mar 28, 2014 at 07:50:31AM +0100, Mike Galbraith wrote:
> > On Fri, 2014-03-28 at 06:13 +0800, Yuyang Du wrote:
> > 
> > > Spitting does feel brutal...
> > 
> > FWIW, "split" stuck hard in my gullet because task placement is core
> 
> Oh, sorry for that, :)

It wasn't _painful_ or anything, I just couldn't swallow it ;-)

> > fastpath mission.  If the fastpath could afford to and did task
> > placement perfectly, task placement EDC (if you will) mechanisms would
> > not exist.
> 
> Sometimes, we have to if not get to.

Yup... but it's still core mission.

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