From: Andreas Mohr <andi@lisas.de>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
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 23:05:58 +0200 [thread overview]
Message-ID: <20091014210558.GA15555@rhlx01.hs-esslingen.de> (raw)
In-Reply-To: <alpine.DEB.2.00.0910141443460.5747@p34.internal.lan>
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
next prev parent reply other threads:[~2009-10-14 21:06 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 [this message]
2009-10-14 22:04 ` Justin Piszcz
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