linux-kernel - Re: [RFC/RFT PATCH v3] sched: automated per tty task groups

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Message-ID: <20101116203306.GE27235@tango.0pointer.de>
Date:	Tue, 16 Nov 2010 21:33:06 +0100
From:	Lennart Poettering <mzxreary@...inter.de>
To:	david@...g.hm
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Dhaval Giani <dhaval.giani@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>,
	Vivek Goyal <vgoyal@...hat.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: Re: [RFC/RFT PATCH v3] sched: automated per tty task groups

On Tue, 16.11.10 11:08, david@...g.hm (david@...g.hm) wrote:

> >If the choice is between telling everybody "you should do this", and
> >"we should just do this for you", I'll take the second one every time.
> >We know it should be done. Why should we then tell somebody else to do
> >it for us?
> 
> this is good for desktop interactivity because it no longer treats
> all processes equally, it give more CPU to processes that are
> running 'stand-alone' then it will to processes that are forked off
> from one master process.

This isn#t good for desktop interatctivey. It is *irrelevant* for
desktop interactivity -- unless you define running "make -j" a typical
desktop usecase. Which it isn't.

Just stop bringing about the word "desktop" here. It has no point in
this discussion.

> In the desktop case where you really want something like 'make -j64'

No you don't. Because that is not a desktop use case.

Lennart

-- 
Lennart Poettering - Red Hat, Inc.
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