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Subject: Re: [RFC][PATCH] HZ as a config option
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Dave Hansen <haveblue@us.ibm.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Date: 05 Oct 2002 01:53:16 +0100
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On Fri, 2002-10-04 at 23:53, Dave Hansen wrote:
> On large systems (like NUMA-Q, Intel Profusion, etc...), latency and 
> user responsiveness become much less important.  The extra scheduling 
> overhead caused by higher HZ is bad.
> 
> This is x86-only right now.  Is there any wider desire to tune this at 
> config time?  Do any architecutures have strict rules as to what this 
> can be set to?

You can't set this arbitarily, the NTP PLL's will only lock for certain
value ranges.

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