From: Chuck Ebbert <cebbert@redhat.com>
To: Aggelos Manousarides <amanous@inaccessnetworks.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Bogus high interrupt load?
Date: Thu, 20 Sep 2007 12:19:06 -0400 [thread overview]
Message-ID: <46F29D7A.9070309@redhat.com> (raw)
In-Reply-To: <20070918235648.GA29746@inaccessnetworks.com>
On 09/18/2007 07:56 PM, Aggelos Manousarides wrote:
>
> There is obviously something happening to the load reporting facility of
> the kernel when a periodic interrupt source is present. Has anyone seen
> something like this? I am not using any real time patches, this is a
> vanilla kernel patched only to support the platform at hand.
>
You will get aliasing effects like that if the system clock is not
interrupting at least twice as often as your periodic interrupts occur.
prev parent reply other threads:[~2007-09-20 16:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-18 23:56 Bogus high interrupt load? Aggelos Manousarides
2007-09-20 16:19 ` Chuck Ebbert [this message]
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