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Date: Tue, 17 Jul 2007 10:02:30 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Roman Zippel <zippel@linux-m68k.org>
Cc: Matt Mackall <mpm@selenic.com>, James Bruce <bruce@andrew.cmu.edu>,
       Thomas Gleixner <tglx@linutronix.de>, Mike Galbraith <efault@gmx.de>,
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       Arjan van de Ven <arjan@infradead.org>,
       Chris Wright <chrisw@sous-sol.org>
Subject: Re: [PATCH] CFS: Fix missing digit off in wmult table
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* Roman Zippel <zippel@linux-m68k.org> wrote:

> Nice level 19 shows the largest artifacts, as that level only gets a 
> single tick, so the ratio is often 1:HZ/10 (except for 1000HZ where 
> it's 5:100). [...]

Roman, please do me a favor, and ask me the following question:

 " Ingo, you've been maintaining the scheduler for years. In fact you 
   wrote the old nice code we are talking about here. You changed it a
   number of times since then. So you really know what's going on here. 
   Why does the old nice code behave like that for nice +19 levels? "

I've been waiting for that obvious question, and i _might_ be able to 
answer it, but somehow it never occured to you ;-) Thanks,

	Ingo