From: Frank Rowand <frank.rowand@gmail.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Len Brown <len.brown@intel.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
linux-embedded@vger.kernel.org,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-pm@lists.linux-foundation.org
Subject: Re: [PATCH] Remove CONFIG_PM altogether, enable power management all the time
Date: Wed, 09 Feb 2011 10:31:29 -0800 [thread overview]
Message-ID: <4D52DD81.7050401__39940.8463774764$1297355540$gmane$org@am.sony.com> (raw)
In-Reply-To: <201102091807.03094.rjw@sisk.pl>
On 02/09/11 09:07, Rafael J. Wysocki wrote:
> On Wednesday, February 09, 2011, Mark Brown wrote:
>> On Tue, Feb 08, 2011 at 03:35:29PM -0800, Frank Rowand wrote:
>>
>>> For 2.6.38-rc4, x86_64, CONFIG_NR_CPUS=4:
>>
>>> size vmlinux
>>> text data bss dec hex filename
>>>
>>> 6553910 3555020 9994240 20103170 132c002 vmlinux with CONFIG_PM
>>> 6512652 3553116 9994240 20060008 1321768 vmlinux without CONFIG_PM
>>>
>>> 41258 1904 0 43162 delta
>>
>>> That is big enough for me to care.
>>
>> Hrm, that's pretty surprising. It'd be interesting to know how much of
>> that is due to the PM core itself and how much of that is from drivers.
>> For the drivers CONFIG_PM isn't really the option they should be using
>> in the first place - they mostly want some combination of PM_SLEEP and
>> PM_RUNTIME for the specific functionality. I'm running some checks now.
>>
>>> > CONFIG_PM_SLEEP=y
>>
>> Raphael's patch will make this a user visible option in place of raw
>> CONFIG_PM by default so you'd be able to turn that off.
>
> No, it won't (just to clarify).
Raphael's patch will turn on CONFIG_PM in the correct circumstances, and
leave it off when not needed by other config options. That means that
the size overhead will _not_ be an issue for me because CONFIG_PM
will not be enabled when not needed.
-Frank
next prev parent reply other threads:[~2011-02-09 18:31 UTC|newest]
Thread overview: 138+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-07 12:22 [PATCH] PM: Hide CONFIG_PM from users Mark Brown
2011-02-07 12:40 ` Geert Uytterhoeven
2011-02-07 13:26 ` Mark Brown
2011-02-07 13:26 ` Mark Brown
2011-02-07 12:40 ` Geert Uytterhoeven
2011-02-07 12:48 ` Ingo Molnar
2011-02-07 12:48 ` Ingo Molnar
2011-02-07 13:09 ` Mark Brown
2011-02-07 13:09 ` Mark Brown
2011-02-07 14:13 ` Stephen Rothwell
2011-02-07 14:13 ` Stephen Rothwell
2011-02-07 14:13 ` Stephen Rothwell
2011-02-07 14:18 ` Mark Brown
2011-02-07 14:18 ` Mark Brown
2011-02-07 14:44 ` Stephen Rothwell
2011-02-07 14:44 ` Stephen Rothwell
2011-02-07 14:44 ` Stephen Rothwell
2011-02-07 14:50 ` Mark Brown
2011-02-07 14:50 ` Mark Brown
2011-02-07 14:50 ` Mark Brown
2011-02-07 15:00 ` Geert Uytterhoeven
2011-02-07 15:00 ` Geert Uytterhoeven
2011-02-07 15:00 ` Geert Uytterhoeven
2011-02-07 15:00 ` Geert Uytterhoeven
2011-02-07 15:10 ` Stephen Rothwell
2011-02-07 15:10 ` Stephen Rothwell
2011-02-07 15:10 ` Stephen Rothwell
2011-02-07 15:19 ` Stephen Rothwell
2011-02-07 15:19 ` Stephen Rothwell
2011-02-07 15:19 ` Stephen Rothwell
2011-02-07 15:21 ` Mark Brown
2011-02-07 15:21 ` Mark Brown
2011-02-07 15:21 ` Mark Brown
2011-02-07 15:36 ` Alan Stern
2011-02-07 15:36 ` Alan Stern
2011-02-07 15:36 ` Alan Stern
2011-02-07 15:36 ` Alan Stern
2011-02-07 15:49 ` Mark Brown
2011-02-07 15:49 ` Mark Brown
2011-02-07 15:49 ` Mark Brown
2011-02-07 19:16 ` Rafael J. Wysocki
2011-02-07 19:16 ` Rafael J. Wysocki
2011-02-07 19:16 ` Rafael J. Wysocki
2011-02-08 1:17 ` Ray Lee
2011-02-08 1:17 ` Ray Lee
2011-02-08 1:17 ` Ray Lee
2011-02-08 11:18 ` Mark Brown
2011-02-08 11:18 ` Mark Brown
2011-02-08 11:18 ` Mark Brown
2011-02-07 14:18 ` Mark Brown
2011-02-07 14:13 ` Stephen Rothwell
2011-02-07 19:14 ` Rafael J. Wysocki
2011-02-07 19:30 ` Mark Brown
2011-02-07 19:30 ` Mark Brown
2011-02-07 19:46 ` Rafael J. Wysocki
2011-02-07 19:46 ` Rafael J. Wysocki
2011-02-07 20:18 ` Mark Brown
2011-02-07 20:18 ` Mark Brown
2011-02-07 21:15 ` Rafael J. Wysocki
2011-02-07 21:15 ` Rafael J. Wysocki
2011-02-07 21:47 ` Dmitry Torokhov
2011-02-07 22:00 ` Rafael J. Wysocki
2011-02-07 22:23 ` Dmitry Torokhov
2011-02-07 22:23 ` Dmitry Torokhov
2011-02-07 23:05 ` Rafael J. Wysocki
2011-02-07 23:05 ` Rafael J. Wysocki
2011-02-08 0:50 ` Dmitry Torokhov
2011-02-08 0:50 ` Dmitry Torokhov
2011-02-08 9:23 ` Rafael J. Wysocki
2011-02-08 9:23 ` Rafael J. Wysocki
2011-02-08 16:48 ` Paul Mundt
2011-02-08 16:48 ` Paul Mundt
2011-02-07 22:00 ` Rafael J. Wysocki
2011-02-07 21:47 ` Dmitry Torokhov
2011-02-08 12:12 ` Mark Brown
2011-02-08 12:12 ` Mark Brown
2011-02-08 12:21 ` [PATCH] Remove CONFIG_PM altogether, enable power management all the time Ingo Molnar
2011-02-08 12:21 ` Ingo Molnar
2011-02-08 21:18 ` [PATCH 0/5] " Rafael J. Wysocki
2011-02-08 21:18 ` Rafael J. Wysocki
2011-02-08 21:20 ` [PATCH 1/5] ACPI / PM: Move references to pm_flags into sleep.c Rafael J. Wysocki
2011-02-08 23:40 ` Linus Torvalds
2011-02-08 23:40 ` Linus Torvalds
2011-02-09 0:37 ` Rafael J. Wysocki
2011-02-09 0:37 ` Rafael J. Wysocki
2011-02-09 1:04 ` Linus Torvalds
2011-02-09 1:04 ` Linus Torvalds
2011-02-08 21:20 ` Rafael J. Wysocki
2011-02-08 21:21 ` [PATCH 2/5] PM: Make CONFIG_PM depend on (CONFIG_PM_SLEEP || CONFIG_PM_RUNTIME) Rafael J. Wysocki
2011-02-08 21:21 ` Rafael J. Wysocki
2011-02-08 21:21 ` Rafael J. Wysocki
2011-02-08 21:21 ` [PATCH 3/5] PM: Reorder power management Kconfig options Rafael J. Wysocki
2011-02-08 21:21 ` Rafael J. Wysocki
2011-02-08 21:22 ` [PATCH 4/5] PM: Replace CONFIG_PM_OPS with CONFIG_PM Rafael J. Wysocki
2011-02-08 21:22 ` Rafael J. Wysocki
2011-02-08 21:23 ` [PATCH 5/5] PM: Clean up Kconfig dependencies Rafael J. Wysocki
2011-02-08 21:23 ` Rafael J. Wysocki
2011-02-08 23:43 ` Linus Torvalds
2011-02-08 23:43 ` Linus Torvalds
2011-02-10 23:32 ` [Updated][PATCH 5/5] PM: Clean up PM_TRACE dependencies and drop unnecessary Kconfig option Rafael J. Wysocki
2011-02-10 23:32 ` Rafael J. Wysocki
2011-02-08 23:35 ` [PATCH] Remove CONFIG_PM altogether, enable power management all the time Frank Rowand
2011-02-08 23:35 ` Frank Rowand
2011-02-08 23:35 ` Frank Rowand
2011-02-09 11:41 ` Mark Brown
2011-02-09 11:41 ` Mark Brown
2011-02-09 11:58 ` Mark Brown
2011-02-09 11:58 ` Mark Brown
2011-02-09 17:07 ` Rafael J. Wysocki
2011-02-09 17:07 ` Rafael J. Wysocki
2011-02-09 18:31 ` Frank Rowand [this message]
2011-02-09 18:31 ` Frank Rowand
2011-02-09 18:40 ` Mark Brown
2011-02-09 18:40 ` Mark Brown
2011-02-09 19:00 ` Frank Rowand
2011-02-09 19:25 ` Mark Brown
2011-02-09 19:53 ` Tim Bird
2011-02-09 19:53 ` Tim Bird
2011-02-09 19:59 ` Mark Brown
2011-02-09 19:59 ` Mark Brown
2011-02-09 20:09 ` Alan Stern
2011-02-09 20:09 ` Alan Stern
2011-02-09 20:10 ` Mark Brown
2011-02-09 20:10 ` Mark Brown
2011-02-09 19:25 ` Mark Brown
2011-02-09 19:00 ` Frank Rowand
2011-02-08 23:35 ` Tim Bird
2011-02-09 2:41 ` Ingo Molnar
2011-02-09 2:41 ` Ingo Molnar
2011-02-08 23:35 ` Tim Bird
2011-02-07 19:14 ` [PATCH] PM: Hide CONFIG_PM from users Rafael J. Wysocki
2011-02-08 2:52 ` Frank Rowand
2011-02-08 2:52 ` Frank Rowand
2011-02-08 2:52 ` Frank Rowand
2011-02-08 14:15 ` Mark Brown
2011-02-08 14:15 ` Mark Brown
2011-02-08 14:29 ` Pavel Machek
2011-02-08 14:29 ` Pavel Machek
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