From: Kevin Hilman <khilman@deeprootsystems.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "Arve Hjønnevåg" <arve@android.com>,
linux-pm@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, "Greg KH" <gregkh@suse.de>,
"Mark Brown" <broonie@opensource.wolfsonmicro.com>,
"Alan Stern" <stern@rowland.harvard.edu>,
"Brian Swetland" <swetland@google.com>,
"Daniel Walker" <dwalker@fifo99.com>,
"Theodore Ts'o" <tytso@mit.edu>,
"Matthew Garrett" <mjg@redhat.com>
Subject: Re: [PATCH 0/8] Suspend block api (version 7)
Date: Mon, 17 May 2010 15:16:52 -0700 [thread overview]
Message-ID: <87sk5qw4vf.fsf@deeprootsystems.com> (raw)
In-Reply-To: <201005172342.52660.rjw@sisk.pl> (Rafael J. Wysocki's message of "Mon\, 17 May 2010 23\:42\:52 +0200")
"Rafael J. Wysocki" <rjw@sisk.pl> writes:
> On Monday 17 May 2010, Arve Hjønnevåg wrote:
>>
>> How about:
>>
>> PM: Add opportunistic suspend support.
>
> "PM: Opportunistic suspend support" would be sufficient IMO.
>
> Now, I'd start with the motivation. Like "Power management features present
> in the current mainline kernel are insufficient to get maximum possible energy
> savings on some platforms, such as Android, because ..." (here go explanations
> why this is the case in your opinion).
Yes, this will be helpful.
> Next, "To allow Android and similar platforms to save more energy than they
> currently can save using the mainline kernel, introduce a mechanism by which
> the system is automatically suspended (i.e. put into a system-wide sleep state)
> whenever it's not doing useful work, called opportunistic suspend".
Hopefully, a definition of "useful" will be given here, including by
what standards on-going work is determined not to be useful.
Kevin
next prev parent reply other threads:[~2010-05-17 22:16 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-14 4:11 [PATCH 0/8] Suspend block api (version 7) Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 1/8] PM: Add suspend block api Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 2/8] PM: suspend_block: Add driver to access suspend blockers from user-space Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 3/8] PM: suspend_block: Abort task freezing if a suspend_blocker is active Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 4/8] PM: suspend_block: Add debugfs file Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 5/8] PM: suspend_block: Add suspend_blocker stats Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 6/8] PM: Add suspend blocking work Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 7/8] Input: Block suspend while event queue is not empty Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 8/8] power_supply: Block suspend while power supply change notifications are pending Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 6:13 ` [PATCH 1/8] PM: Add suspend block api Paul Walmsley
2010-05-14 6:27 ` Paul Walmsley
2010-05-14 7:14 ` Arve Hjønnevåg
2010-05-18 2:17 ` Paul Walmsley
2010-05-18 3:06 ` Arve Hjønnevåg
2010-05-18 3:34 ` Paul Walmsley
2010-05-18 3:51 ` Arve Hjønnevåg
2010-05-19 15:55 ` Paul Walmsley
2010-05-20 0:35 ` Arve Hjønnevåg
2010-05-18 13:11 ` Pavel Machek
2010-05-18 13:11 ` Pavel Machek
2010-05-20 9:11 ` Florian Mickler
2010-05-20 9:26 ` Florian Mickler
2010-05-20 22:18 ` Rafael J. Wysocki
2010-05-21 6:04 ` Florian Mickler
2010-05-21 6:04 ` Florian Mickler
2010-05-27 15:41 ` Pavel Machek
2010-05-27 15:41 ` Pavel Machek
2010-05-20 22:18 ` Rafael J. Wysocki
2010-05-20 9:26 ` Florian Mickler
2010-05-20 9:11 ` Florian Mickler
2010-05-14 21:08 ` [PATCH 0/8] Suspend block api (version 7) Rafael J. Wysocki
2010-05-17 4:50 ` Arve Hjønnevåg
2010-05-17 4:50 ` Arve Hjønnevåg
2010-05-17 19:01 ` Mike Snitzer
2010-05-17 19:01 ` Mike Snitzer
2010-05-17 21:42 ` Rafael J. Wysocki
2010-05-17 21:42 ` Rafael J. Wysocki
2010-05-17 22:16 ` Kevin Hilman
2010-05-17 22:16 ` Kevin Hilman [this message]
2010-05-18 0:52 ` Arve Hjønnevåg
2010-05-18 0:52 ` Arve Hjønnevåg
2010-05-18 16:18 ` Kevin Hilman
2010-05-18 18:52 ` Rafael J. Wysocki
2010-05-18 22:04 ` Kevin Hilman
2010-05-18 22:29 ` Rafael J. Wysocki
2010-05-18 22:29 ` Rafael J. Wysocki
2010-05-18 22:04 ` Kevin Hilman
2010-05-18 18:52 ` Rafael J. Wysocki
2010-05-19 0:00 ` Arve Hjønnevåg
2010-05-19 0:00 ` Arve Hjønnevåg
2010-05-18 16:18 ` Kevin Hilman
2010-05-18 16:18 ` Kevin Hilman
2010-05-18 19:13 ` Rafael J. Wysocki
2010-05-18 20:47 ` Arve Hjønnevåg
2010-05-18 21:48 ` Rafael J. Wysocki
2010-05-18 21:48 ` Rafael J. Wysocki
2010-05-18 22:03 ` Arve Hjønnevåg
2010-05-18 22:03 ` Arve Hjønnevåg
2010-05-18 22:34 ` Rafael J. Wysocki
2010-05-18 22:34 ` Rafael J. Wysocki
2010-05-18 22:52 ` Arve Hjønnevåg
2010-05-18 22:52 ` Arve Hjønnevåg
2010-05-18 23:19 ` Rafael J. Wysocki
2010-05-18 23:42 ` Arve Hjønnevåg
2010-05-18 23:42 ` Arve Hjønnevåg
2010-05-19 20:39 ` Rafael J. Wysocki
2010-05-19 21:34 ` Arve Hjønnevåg
2010-05-19 21:34 ` Arve Hjønnevåg
2010-05-20 22:21 ` Rafael J. Wysocki
2010-05-20 22:21 ` Rafael J. Wysocki
2010-05-19 20:39 ` Rafael J. Wysocki
2010-05-18 23:19 ` Rafael J. Wysocki
2010-05-18 20:47 ` Arve Hjønnevåg
2010-05-18 19:13 ` Rafael J. Wysocki
2010-05-14 21:08 ` Rafael J. Wysocki
2010-05-16 19:42 ` Rafael J. Wysocki
2010-05-16 19:42 ` Rafael J. Wysocki
2010-05-17 4:16 ` Arve Hjønnevåg
2010-05-17 4:16 ` Arve Hjønnevåg
2010-05-17 20:40 ` Rafael J. Wysocki
2010-05-17 20:51 ` Brian Swetland
2010-05-17 20:51 ` Brian Swetland
2010-05-17 21:44 ` Rafael J. Wysocki
2010-05-17 23:32 ` Arve Hjønnevåg
2010-05-18 19:38 ` Rafael J. Wysocki
2010-05-18 19:38 ` Rafael J. Wysocki
2010-05-18 20:35 ` Arve Hjønnevåg
2010-05-18 20:35 ` Arve Hjønnevåg
2010-05-18 21:14 ` Rafael J. Wysocki
2010-05-18 21:14 ` Rafael J. Wysocki
2010-05-18 22:21 ` Arve Hjønnevåg
2010-05-18 22:21 ` Arve Hjønnevåg
2010-05-18 22:56 ` Rafael J. Wysocki
2010-05-18 22:56 ` Rafael J. Wysocki
2010-05-18 23:06 ` Arve Hjønnevåg
2010-05-18 23:06 ` Arve Hjønnevåg
2010-05-19 20:40 ` Rafael J. Wysocki
2010-05-19 20:40 ` Rafael J. Wysocki
2010-05-17 23:32 ` Arve Hjønnevåg
2010-05-17 21:44 ` Rafael J. Wysocki
2010-05-17 20:40 ` Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2010-05-14 4:11 Arve Hjønnevåg
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