From: Justin Piszcz <jpiszcz@lucidpixels.com>
To: Andreas Mohr <andi@lisas.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: System (motherboard/CPU?) emits high pitch noise when processor.ko is loaded.
Date: Wed, 14 Oct 2009 18:04:32 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.2.00.0910141803380.2653@p34.internal.lan> (raw)
In-Reply-To: <20091014210558.GA15555@rhlx01.hs-esslingen.de>
On Wed, 14 Oct 2009, Andreas Mohr wrote:
> And that's news exactly how? ;)
> Systems and their switching regulators (and especially their backing
> coils) have been making noise for more than half a decade now,
> depending on which activities frequency is currently taking place
> on the system.
>
> OTOH this means that in your case, maybe some interval in the processor module
> (or somewhere related) is ill-chosen (leading to significant, audible differences
> between busy/idle state) and should be changed.
>
> For example, with HZ settings 100 can cause quite a bit of noise on some
> machines, whereas 1000 is better, IIRC. And that could be similar for some
> processing in this module.
>
> Andreas
>
Hi,
Ok, well I never had that happen before when loading that module--
although I never normally ran it except for testing purposes, so it was news
to me :)
CPU was i870 & mobo = DP55KG for reference and I use a HZ setting of 1000.
Justin.
prev parent reply other threads:[~2009-10-14 22:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-14 18:45 Justin Piszcz
2009-10-14 21:05 ` Andreas Mohr
2009-10-14 22:04 ` Justin Piszcz [this message]
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