* Arjan van de Ven <[EMAIL PROTECTED]> [050119 09:31]: > On Wed, 2005-01-19 at 09:11 -0800, Tony Lindgren wrote: > > * Pavel Machek <[EMAIL PROTECTED]> [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.
Yeah, I just started with what was running on my old box :) I'll make it a separate Kconfig option with notes on that. The TSC timer is currently as accurate as without dyn-tick, but the ACPI PM timer's accuracy suffers a bit for some reason. Tony - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
