linux-kernel - Re: Dynticks Causing High Context Switch Rate in ksoftirqd

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Date:	Tue, 27 Nov 2007 18:18:58 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	bdupree@...hfinesse.com
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Dynticks Causing High Context Switch Rate in ksoftirqd

bdupree@...hfinesse.com wrote:
> Hello Robert,
> 
> I've attached additional detail on the config of the misbehaving system
> including output from oprofile and PowerTop. PowerTop output leads me to
> believe that maybe this is an interaction between my bridged ethernet
> setup and dynticks? Hmmm...

Don't know about that, your top wakeups are from br_stp_enable_bridge, 
but that is only 26 a second - that doesn't explain a context switch 
rate of 150,000 a second..

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@...pamshaw.ca
Home Page: http://www.roberthancock.com/

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