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From: George Anzinger <george@mvista.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: "'high-res-timers-discourse@lists.sourceforge.net'" 
	<high-res-timers-discourse@lists.sourceforge.net>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [ANNOUNCE] VST (tick elimination) is now available
Date: Tue, 14 Oct 2003 05:41:56 -0700	[thread overview]
Message-ID: <3F8BEF14.6050503@mvista.com> (raw)
In-Reply-To: <20031014110218.GA20211@elf.ucw.cz>

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


      reply	other threads:[~2003-10-14 12:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-10 22:19 [ANNOUNCE] VST (tick elimination) is now available George Anzinger
2003-10-14 11:02 ` Pavel Machek
2003-10-14 12:41   ` George Anzinger [this message]

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