linux-kernel - RE: [PATCH] cpuidle: avoid singing capacitors

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Date:	Mon, 3 Mar 2008 13:14:28 -0800
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	"Pavel Machek" <pavel@....cz>,
	"Pierre Ossman" <drzeus-list@...eus.cx>
Cc:	"Adam Belay" <abelay@...ell.com>,
	<linux-pm@...ts.linux-foundation.org>,
	"LKML" <linux-kernel@...r.kernel.org>,
	"Andi Kleen" <andi@...stfloor.org>,
	"Lee Revell" <rlrevell@...-job.com>
Subject: RE: [PATCH] cpuidle: avoid singing capacitors

 

>-----Original Message-----
>From: Pavel Machek [mailto:pavel@....cz] 
>Sent: Monday, March 03, 2008 1:09 PM
>To: Pierre Ossman
>Cc: Pallipadi, Venkatesh; Adam Belay; 
>linux-pm@...ts.linux-foundation.org; LKML; Andi Kleen; Lee Revell
>Subject: Re: [PATCH] cpuidle: avoid singing capacitors
>
>On Mon 2008-03-03 22:03:10, Pierre Ossman wrote:
>> On Mon, 3 Mar 2008 21:46:03 +0100
>> Pavel Machek <pavel@....cz> wrote:
>> 
>> > >  
>> > > +static unsigned int min_deep_sleep = 2000;
>> > > +
>> > 
>> > Well, why not, but I believe we should default to old 
>behaviour... not
>> > all machines are cheaply-build.
>> 
>> One would hope. ;)
>> 
>> But the problem is that most people will not be able to find this
>> option (or even know such an option exists). I'd guess the 
>distros will
>> just end up having this on by default anyway. And since I could not
>> measure any extra power drain, I believe it's hard to 
>justify having it
>> off by default (more than by pure principle).
>
>So just leave it off by default, and let distros break their own
>kernels ;-).
>								

I prefer leaving it off my default and enabling it on faulty hardware by
some blacklist.

Thanks,
Venki
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