Re: [PATCH] x86: Reduce the default HZ value

[Ravikiran G Thirumalai]

On Thu, May 07, 2009 at 09:34:03PM +0100, Alan Cox wrote:
>> >> Given your use case, what you really need to do is get Red Hat,
>> >> Novell, et al. on the phone and ask them to ship kernels with HZ=100,
>> >> because the distributions do their own thing anyway.
>
>As a side note Red Hat ships runtime configurable tick behavior in RHEL
>these days. HZ is fixed but the ticks can be bunched up. That was done as
>a quick fix to keep stuff portable but its a lot more sensible than
>randomly messing with the HZ value and its not much code either.
>

That's interesting!
Could you please point us to the patch if you can?

(As a HPC + virtualization shop, we set HZ to 100 all the time,
and a patch like the one you mention above sounds great)

Thanks,
Kiran

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