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

[H. Peter Anvin]

Alok Kataria wrote:
> Hi,
>
> Given that there were no major objections that came up regarding
> reducing the HZ value in http://lkml.org/lkml/2009/4/27/499. 
>
> Below is the patch which actually reduces it, please consider for tip.

What is the benefit of this?

I can see at least one immediate downside: some timeout values in the 
kernel are still maintained in units of HZ (like poll, I believe), and 
so with a lower HZ value we'll have higher roundoff errors.

	-hpa
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