From: Arjan van de Ven <arjan@infradead.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@tglx.de
Subject: Re: [PATCH 4/5] select: make select() use schedule_hrtimeout()
Date: Sat, 30 Aug 2008 08:25:13 -0700 [thread overview]
Message-ID: <20080830082513.5fdc3c02@infradead.org> (raw)
In-Reply-To: <20080829193309.113d5b64@lxorguk.ukuu.org.uk>
On Fri, 29 Aug 2008 19:33:09 +0100
Alan Cox <alan@lxorguk.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)
--
If you want to reach me at my work email, use arjan@linux.intel.com
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
next prev parent reply other threads:[~2008-08-30 15:25 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-29 15:05 [patch 0/5] Nano/Microsecond resolution for select() and poll() Arjan van de Ven
2008-08-29 15:06 ` [PATCH 1/5] select: add a timespec version of the timeout to select/poll Arjan van de Ven
2008-08-30 2:10 ` Andrew Morton
2008-08-30 2:54 ` Linus Torvalds
2008-08-29 15:07 ` [PATCH 2/5] select: return accurate remainer in select() and ppoll() Arjan van de Ven
2008-08-29 15:07 ` [PATCH 3/5] select: introduce a schedule_hrtimeout() function Arjan van de Ven
2008-08-29 15:08 ` [PATCH 4/5] select: make select() use schedule_hrtimeout() Arjan van de Ven
2008-08-29 15:36 ` Arnd Bergmann
2008-08-29 15:59 ` Daniel Walker
2008-08-29 16:20 ` Linus Torvalds
2008-08-29 16:11 ` Alan Cox
2008-08-29 17:26 ` Linus Torvalds
2008-08-29 17:42 ` Arjan van de Ven
2008-08-29 18:18 ` Alan Cox
2008-08-29 18:46 ` Linus Torvalds
2008-08-29 18:33 ` Alan Cox
2008-08-30 15:25 ` Arjan van de Ven [this message]
2008-08-29 16:30 ` Arjan van de Ven
2008-08-29 15:08 ` [PATCH 5/5] select: make poll() use schedule_hrtimeout() as well Arjan van de Ven
2008-08-29 15:54 ` [patch 0/5] Nano/Microsecond resolution for select() and poll() Arnd Bergmann
2008-08-29 16:12 ` Arjan van de Ven
2008-08-29 22:15 ` Brian Wellington
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