linux-kernel - Re: [PATCH 4/5] select: make select() use schedule

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Message-ID: <20080830082513.5fdc3c02@infradead.org>
Date:	Sat, 30 Aug 2008 08:25:13 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, mingo@...e.hu, tglx@...x.de
Subject: Re: [PATCH 4/5] select: make select() use schedule_hrtimeout()

On Fri, 29 Aug 2008 19:33:09 +0100
Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> > And yes, I do agree that the heuristic could well involve other 
> > characteristics of the process in question. And probably
> > characteristics of the machine itself (ie some general kind of
> > "power mode" where timers are simply not considered critical if you
> > want to be in low-power mode).
> 
> HAL and dbus already deal with this sort of stuff, including now
> having a notion of 'on battery' and the like so if its in sysfs it
> ceases to be the kernels problem ;)

(side note: "on battery" is the worst possible measure for doing 'do I
need to be power sensitive', but you knew that already)


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