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Date: Fri, 26 Jan 2007 18:15:36 +0100 From: Pavel Machek <pavel@....cz> To: Alessandro Di Marco <dmr@....it> Cc: linux-kernel@...r.kernel.org, vojtech@...e.cz Subject: Re: [ANNOUNCE] System Inactivity Monitor v1.0 Hi! > Imagine for a moment that we solve time-warp somehow. Any other > problems? > > Well, a user-level daemon have to process a lot of data just to detect user > interaction. Considering that the trackpad bandwidth is nearly 5KB/sec, > probably would be better to leave my panel alone... :-/ Ok, so we may want to introduce something like "tell me if some data came from last time"... Actually, 5KB/sec is pretty much okay, and you probably could get around actually reading that data. When you know user is moving the touchpad, you could just sleep for 5 seconds (assuming user activity) and only then start monitoring it again? > I'd really like to get "is user idle" solved, but it really should not be in > kernel unless it _has_ to. And time-warp probably causes problems not only > for your daemon. > > IMHO signal the user-space is a kernel duty and no user-space daemon will ever > make it better. There are plenty of PM daemons out there, but Linux still lacks Well, I do not think your kernel code is mergeable. But bits to enable similar functionality in userspace probably would be mergeable. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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