All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] cpuidle: avoid singing capacitors
Date: Wed, 05 Mar 2008 09:32:15 -0800	[thread overview]
Message-ID: <47CED91F.4020106@goop.org> (raw)
In-Reply-To: <20080301132924.0dc22b36@mjolnir.drzeus.cx>

Pierre Ossman wrote:
> On Fri, 29 Feb 2008 13:09:05 -0800 (PST)
> Alan Jenkins <alan-jenkins@tuffmail.co.uk> wrote:
>
>   
>> Pierre Ossman wrote:
>>     
>>> Many devices today are of a less than stellar quality, and singing
>>> transistors are a common problem. A high-pitch noise is created, caused
>>> by power fluctuations as the processor enters and leaves deep sleep at
>>> a high frequency.
>>>       
>> Capacitors or transistors?  The subject and the description disagree.
>>
>>     
>
> That should teach me to write commit messages when I'm tired... Capacitors is of course the right answer. :)

More likely inductors, I think.  The coils can vibrate against the coil 
if they haven't been properly potted in something.  Capacitors don't 
really have anything which can "sing".

    J

  reply	other threads:[~2008-03-05 17:37 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <a2itf-5jB-27@gated-at.bofh.it>
2008-02-29 21:09 ` [RFC][PATCH] cpuidle: avoid singing capacitors Alan Jenkins
2008-03-01 12:29   ` Pierre Ossman
2008-03-05 17:32     ` Jeremy Fitzhardinge [this message]
2008-03-05 18:01       ` Pierre Ossman
2008-02-29 18:38 Pierre Ossman
2008-02-29 21:44 ` Lennart Sorensen
2008-03-01 12:31   ` Pierre Ossman
2008-03-01 12:31   ` Pierre Ossman
2008-02-29 21:44 ` Lennart Sorensen
2008-03-01 13:40 ` Pierre Ossman
2008-03-01 13:40 ` Pierre Ossman
2008-03-02  2:27 ` Lee Revell
2008-03-02 14:17   ` Pierre Ossman
2008-03-02 14:17   ` Pierre Ossman
2008-03-02  2:27 ` Lee Revell
2008-03-03 12:36 ` Andi Kleen
2008-03-03 12:36 ` Andi Kleen
  -- strict thread matches above, loose matches on Subject: below --
2008-02-29 18:38 Pierre Ossman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=47CED91F.4020106@goop.org \
    --to=jeremy@goop.org \
    --cc=alan-jenkins@tuffmail.co.uk \
    --cc=drzeus-list@drzeus.cx \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.