linux-kernel - Re: Renice X for cpu schedulers

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Date:	Thu, 19 Apr 2007 09:17:25 -0400
From:	Mark Lord <lkml@....ca>
To:	Con Kolivas <kernel@...ivas.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nick Piggin <npiggin@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Matt Mackall <mpm@...enic.com>,
	William Lee Irwin III <wli@...omorphy.com>,
	Peter Williams <pwil3058@...pond.net.au>,
	Mike Galbraith <efault@....de>, ck list <ck@....kolivas.org>,
	Bill Huey <billh@...ppy.monkey.org>,
	linux-kernel@...r.kernel.org,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Renice X for cpu schedulers

Con Kolivas wrote:
s go ahead and think up great ideas for other ways of metering out cpu 
> bandwidth for different purposes, but for X, given the absurd simplicity of 
> renicing, why keep fighting it? Again I reiterate that most users of SD have 
> not found the need to renice X anyway except if they stick to old habits of 
> make -j4 on uniprocessor and the like, and I expect that those on CFS and 
> Nicksched would also have similar experiences.

Just plain "make" (no -j2 or -j9999) is enough to kill interactivity
on my 2GHz P-M single-core non-HT machine with SD.

But with the very first posted version of CFS by Ingo,
I can do "make -j2" no problem and still have a nicely interactive destop.

-ml
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