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From: Oliver Neukum <oliver@neukum.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Pavel Machek <pavel@ucw.cz>,
	kernel list <linux-kernel@vger.kernel.org>,
	Linux-pm mailing list <linux-pm@lists.osdl.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: [RFC] sleepy linux
Date: Wed, 26 Dec 2007 21:08:35 +0100	[thread overview]
Message-ID: <200712262108.35643.oliver@neukum.org> (raw)
In-Reply-To: <4772A3FB.8080108@zytor.com>

Am Mittwoch, 26. Dezember 2007 19:56:59 schrieb H. Peter Anvin:
> > 3) Network card that is either down
> >    or can wake up system on any packet (and not loose too many packets)
> > 
> 
> This is the big crux I see.  You're going to constantly wake up the 
> machine due to broadcast packets, and spend a lot of power just going in 
> and out of S3.

How many machines care a lot about saving power while they are connected
to an ethernet? Wlan might be more of a problem.

	Regards
		Oliver

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WARNING: multiple messages have this Message-ID (diff)
From: Oliver Neukum <oliver@neukum.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Pavel Machek <pavel@ucw.cz>,
	kernel list <linux-kernel@vger.kernel.org>,
	Linux-pm mailing list <linux-pm@lists.osdl.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: [RFC] sleepy linux
Date: Wed, 26 Dec 2007 21:08:35 +0100	[thread overview]
Message-ID: <200712262108.35643.oliver@neukum.org> (raw)
In-Reply-To: <4772A3FB.8080108@zytor.com>

Am Mittwoch, 26. Dezember 2007 19:56:59 schrieb H. Peter Anvin:
> > 3) Network card that is either down
> >    or can wake up system on any packet (and not loose too many packets)
> > 
> 
> This is the big crux I see.  You're going to constantly wake up the 
> machine due to broadcast packets, and spend a lot of power just going in 
> and out of S3.

How many machines care a lot about saving power while they are connected
to an ethernet? Wlan might be more of a problem.

	Regards
		Oliver


  parent reply	other threads:[~2007-12-26 20:08 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-25 23:07 [RFC] sleepy linux Pavel Machek
2007-12-26 17:28 ` Oliver Neukum
2007-12-26 17:28   ` Oliver Neukum
2007-12-26 19:02   ` Pavel Machek
2007-12-26 19:02     ` Pavel Machek
2007-12-26 20:17   ` Pavel Machek
2007-12-26 20:17     ` Pavel Machek
2007-12-26 20:23     ` Oliver Neukum
2007-12-26 20:23       ` Oliver Neukum
2007-12-26 20:32       ` Pavel Machek
2007-12-26 20:32         ` Pavel Machek
2007-12-26 23:15         ` Oliver Neukum
2007-12-29 23:48           ` Pavel Machek
2007-12-27  9:41         ` Oliver Neukum
2007-12-29 23:51           ` Pavel Machek
2007-12-30 16:39             ` Oliver Neukum
2007-12-31 14:44               ` Pavel Machek
2008-01-02 10:52                 ` Oliver Neukum
2007-12-26 18:56 ` H. Peter Anvin
2007-12-26 19:00   ` Pavel Machek
2007-12-26 19:22     ` H. Peter Anvin
2007-12-26 20:08   ` Oliver Neukum [this message]
2007-12-26 20:08     ` Oliver Neukum
2007-12-26 20:43     ` H. Peter Anvin
2007-12-26 20:51       ` Pavel Machek
2007-12-26 20:54         ` H. Peter Anvin
2007-12-29 23:44           ` Pavel Machek
2007-12-26 20:09 ` [linux-pm] " Igor Stoppa
2007-12-30 11:15 ` Ingo Molnar
2008-01-05 21:51   ` Pavel Machek
2008-01-08 16:37     ` Ingo Molnar
2008-01-08 19:15       ` Pavel Machek

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