linux-kernel - Re: [RFC PATCH] sched: wakeup buddy

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Message-ID: <1362065465.1758.15.camel@leonhard>
Date:	Fri, 01 Mar 2013 00:31:05 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Mike Galbraith <efault@....de>
Cc:	Michael Wang <wangyun@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Turner <pjt@...gle.com>, Alex Shi <alex.shi@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ram Pai <linuxram@...ibm.com>,
	"Nikunj A. Dadhania" <nikunj@...ux.vnet.ibm.com>
Subject: Re: [RFC PATCH] sched: wakeup buddy

2013-02-28 (목), 11:06 +0100, Mike Galbraith:
> On Thu, 2013-02-28 at 18:25 +0900, Namhyung Kim wrote:
> 
> > Not sure if it should require bidirectional relationship.  Looks like
> > just for benchmarks.  Isn't there a one-way relationship that could get
> > a benefit from this?  I don't know ;-)
> 
> ??  Meaningful relationships are bare minimum bidirectional, how can you
> describe one connection and have it remain meaningful?  I love "her" is
> unlikely to lead to anything meaningful if "she" doesn't know you exist.

Maybe I misunderstood something.  I was thinking about typical
cooperation models like manager-worker, producer-consumer or pipeline
and thought that they are usually one-way relationship in terms of the
wakeup.

Thanks,
Namhyung


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