Re: 2.6.19 -mm merge plans

Pavel Machek
2006-09-23T11:08:01Z

Hi!

> > > would be nice to merge the -hrt queue that goes right ontop this
> > > queue. Even if HIGH_RES_TIMERS is "default n" in the beginning. That
> > > gives us high-res timers and dynticks which are both very important
> > > features to certain classes of users/devices.
> >
> > dynticks give benefit of 0.3W, or 20minutes (IIRC) from 8hours on
> > thinkpad x60... and they were around for way too long. (When baseline
> > is hz=250, it is 0.5W from hz=1000 baseline). It would be cool to
> > finally merge them.
>
> note that this is a new implementation of dynticks though, not Con's
> older stuff which you probably used, right? But it's fairly low-impact

(Well, I cheated, and just measured difference between HZ=100 and
HZ=250/1000. Dynticks should be even slightly better than that.)
Pavel

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