From: Adam Belay <ambx1@neo.rr.com>
To: Dave Jones <davej@redhat.com>, Con Kolivas <kernel@kolivas.org>,
ck list <ck@vds.kolivas.org>,
linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.15-ck1
Date: Thu, 12 Jan 2006 19:42:36 -0500 [thread overview]
Message-ID: <20060113004236.GB11601@neo.rr.com> (raw)
In-Reply-To: <20060112230315.GO19827@redhat.com>
On Thu, Jan 12, 2006 at 06:03:15PM -0500, Dave Jones wrote:
> On Thu, Jan 12, 2006 at 05:11:33PM -0500, Adam Belay wrote:
> > It might be possible to do even a little better. Currently, I'm developing a
> > new ACPI idle policy that tries to take advantage of the long time we may
> > be able to spend in a C3 state.
>
> As soon as that usb timer hits (every 250ms iirc) you'll bounce back out
> of any low-power state you may be in. It's a bit craptastic that we do
> this, even if we don't have any USB devices plugged in.
>
> Dave
I agree that's annoying, but isn't 250ms not often enough to make any
significant difference as far as power management is concerned?
Generally some bus master activity will come along in a shorter time frame,
causing a jump out of C3.
Thanks,
Adam
next prev parent reply other threads:[~2006-01-13 0:39 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-04 1:00 2.6.15-ck1 Con Kolivas
2006-01-04 19:05 ` 2.6.15-ck1 Dave Jones
2006-01-04 19:57 ` 2.6.15-ck1 Dave Jones
2006-01-04 20:33 ` 2.6.15-ck1 Arjan van de Ven
2006-01-04 21:22 ` 2.6.15-ck1 Dave Jones
2006-01-04 21:40 ` [ck] 2.6.15-ck1 Radoslaw Szkodzinski
2006-01-05 0:12 ` 2.6.15-ck1 Con Kolivas
2006-01-05 0:27 ` 2.6.15-ck1 Dave Jones
2006-01-05 0:49 ` 2.6.15-ck1 Con Kolivas
2006-01-05 1:14 ` 2.6.15-ck1 Dave Jones
2006-01-05 1:22 ` 2.6.15-ck1 Andi Kleen
2006-01-05 1:36 ` 2.6.15-ck1 Con Kolivas
2006-01-05 6:04 ` 2.6.15-ck1 Dave Jones
2006-01-05 6:42 ` 2.6.15-ck1 Vojtech Pavlik
2006-01-05 6:55 ` [ck] 2.6.15-ck1 Con Kolivas
2006-01-05 15:19 ` 2.6.15-ck1 Andi Kleen
2006-01-05 16:30 ` 2.6.15-ck1 Vojtech Pavlik
2006-01-05 16:39 ` 2.6.15-ck1 Andi Kleen
2006-01-05 17:13 ` 2.6.15-ck1 Dmitry Torokhov
2006-01-05 17:28 ` 2.6.15-ck1 Andi Kleen
2006-01-05 1:50 ` 2.6.15-ck1 Tony Lindgren
2006-01-04 23:10 ` 2.6.15-ck1 Con Kolivas
2006-01-05 1:57 ` 2.6.15-ck1 Tony Lindgren
2006-01-05 18:47 ` [ck] 2.6.15-ck1 Kevin Radloff
2006-01-12 18:51 ` Daniel Petrini
2006-01-04 20:38 ` 2.6.15-ck1 Grant Coady
2006-01-04 20:56 ` 2.6.15-ck1 Dave Jones
2006-01-12 22:11 ` 2.6.15-ck1 Adam Belay
2006-01-12 23:03 ` 2.6.15-ck1 Dave Jones
2006-01-13 0:42 ` Adam Belay [this message]
2006-01-13 0:46 ` 2.6.15-ck1 Dave Jones
2006-01-16 20:28 ` 2.6.15-ck1 Ben Slusky
2006-01-14 3:42 ` 2.6.15-ck1 Philipp Rumpf
2006-01-14 4:41 ` 2.6.15-ck1 Dave Jones
2006-01-14 13:06 ` [ck] 2.6.15-ck1 Jens Axboe
2006-01-05 17:58 ` 2.6.15-ck1 Tomasz Torcz
2006-01-05 23:22 ` 2.6.15-ck1 Con Kolivas
2006-01-07 13:16 ` 2.6.15-ck1 Tomasz Torcz
[not found] ` <9268368b0601131119n639c345cgcf2a5dadd7cb423c@mail.gmail.com>
2006-01-14 20:54 ` 2.6.15-ck1 Tomasz Torcz
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