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Date:      Tue, 24 Jul 2001 16:38:13 +0400
From:      "Andrey A. Chernov" <ache@nagual.pp.ru>
To:        Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Death sentence to KLD screen savers? Comments?
Message-ID:  <20010724163811.B11093@nagual.pp.ru>
In-Reply-To: <200107241234.VAA14547@zodiac.mech.utsunomiya-u.ac.jp>
References:  <200107241207.VAA14339@zodiac.mech.utsunomiya-u.ac.jp> <20010724160822.B10585@nagual.pp.ru> <200107241234.VAA14547@zodiac.mech.utsunomiya-u.ac.jp>

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On Tue, Jul 24, 2001 at 21:34:40 +0900, Kazutaka YOKOTA wrote:
> 
> >> We shall provide the "screen saver daemon" and a set of "screen saver
> >> programs."  The screen saver daemon will run in the background and
> >> periodically checks if the console is idle.  When it finds no
> >> activity in the console, it will launch a specified "screen saver
> >> program."
> >
> >No "periodical checks" please. It must wait on poll/select or kqevent or
> >something like, event based, event provided by syscons.
> 
> Because there already is the CONS_IDLE ioctl, I thought it's
> easy for the screen saver daemon to use this ioctl. But, if
> kqevent is preferred, we can do that.

Maybe I am not clear, but periodical checks is time/resources
waste. Sleeping on event wait, swapped out is more preferred, not occupes
memory, etc.

-- 
Andrey A. Chernov
http://ache.pp.ru/

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