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Date: Thu, 19 Apr 2007 09:17:25 -0400
From: Mark Lord <lkml@rtr.ca>
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To: Con Kolivas <kernel@kolivas.org>
Cc: Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@linux-foundation.org>,
       Nick Piggin <npiggin@suse.de>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Matt Mackall <mpm@selenic.com>,
       William Lee Irwin III <wli@holomorphy.com>,
       Peter Williams <pwil3058@bigpond.net.au>,
       Mike Galbraith <efault@gmx.de>, ck list <ck@vds.kolivas.org>,
       Bill Huey <billh@gnuppy.monkey.org>, linux-kernel@vger.kernel.org,
       Arjan van de Ven <arjan@infradead.org>,
       Thomas Gleixner <tglx@linutronix.de>
Subject: Re: Renice X for cpu schedulers
References: <20070417062621.GL2986@holomorphy.com> <20070418221432.e4dbcf4f.akpm@linux-foundation.org> <20070419063810.GA22418@elte.hu> <200704192159.35546.kernel@kolivas.org>
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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