Messages in this thread | | | Date | Tue, 05 May 2009 14:21:34 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] x86: Reduce the default HZ value |
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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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