linux-kernel - Re: [git pull request] scheduler updates

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Message-Id: <200708310358.04411.zippel@linux-m68k.org>
Date:	Fri, 31 Aug 2007 03:58:03 +0200
From:	Roman Zippel <zippel@...ux-m68k.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [git pull request] scheduler updates

Hi,

On Friday 24 August 2007, Linus Torvalds wrote:

> Why the hell can't you just make the code sane and do what the comment
> *says* it does, and just admit that HZ has nothing what-so-ever to do with
> that thing, and then you do
>
> 	unsigned int sysctl_sched_granularity __read_mostly = 3000000ULL;
>
> and be done with it. Instead of this *insane* expectation that HZ is
> always 1000, and any other value means that you want bigger granularity,
> which is not true and makes no sense.

I'd actually like to base this on the cpu frequency or the number of cycles to 
be precise, e.g. with 10^7 cycles this would be 100ms for 100MHz and 10ms for 
1GHz.

bye, Roman
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