Re: [PATCH] dynamic tick patch

[Arjan van de Ven]

On Wed, 2005-01-19 at 09:11 -0800, Tony Lindgren wrote:
> * Pavel Machek <pavel@xxxxxxx> [050119 03:32]:
> > Hi!
> > 
> > > As this patch is related to the VST/High-Res timers, there
> > > are probably various things that can be merged. I have not
> > > yet looked at what all could be merged.
> > > 
> > > I'd appreciate some comments and testing!
> > 
> > Good news is that it does seem to reduce number of interrupts. Bad
> > news is that time now runs faster (like "sleep 10" finishes in ~5
> > seconds) and that I could not measure any difference in power
> > consumption.
> 
> Thanks for trying it out. I have quite accurate time here on my
> systems, and sleep works as it should. I wonder what's happening on
> your system? If you have a chance, could you please post the results
> from following simple tests?

tsc is dangerous for this btw; several cpus go either slower or stop tsc
entirely during hlt... eg when idle.
I would suggest to not include a tsc driver for this (otherwise really
cool) feature.


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