Re: [RFC][PATCH] HZ as a config option

Alan Cox (alan@lxorguk.ukuu.org.uk)
05 Oct 2002 01:53:16 +0100


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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