Messages in this thread | | | Date | Tue, 14 Oct 2003 05:41:56 -0700 | From | George Anzinger <> | Subject | Re: [ANNOUNCE] VST (tick elimination) is now available |
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Pavel Machek wrote: > Hi! > > >>The first release of the VST package is now available. VST or >>Variable Scheduling Timeouts (or if you prefer, Variable Sleep Times) >>contains code that, from the idle task, scans the timer list and, if >>no timer is near, skips the timer interrupts that would otherwise be >>generated. The patch name is hrtimers-vst-* >> >>The net result is that a quite system will use far less power as it >>does not need to wake up ever 1/HZ timer tick. > > > Do you have some measurements of how much power does it save? Making > Sharp Zaurus run longer on batteries would certainly be nice ;-). > Pavel
Not just yet. This is a first cut and a good deal of work still needs doing. I could also say that that is why I put it out there :) >
-- George Anzinger george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml
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