Messages in this thread | | | Subject | Re: [PATCH] dynamic tick patch | From | Arjan van de Ven <> | Date | Wed, 19 Jan 2005 18:30:49 +0100 |
| |
On Wed, 2005-01-19 at 09:11 -0800, Tony Lindgren wrote: > * Pavel Machek <pavel@suse.cz> [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.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |