Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760511AbXK1ATR (ORCPT ); Tue, 27 Nov 2007 19:19:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754986AbXK1ATF (ORCPT ); Tue, 27 Nov 2007 19:19:05 -0500 Received: from idcmail-mo1so.shaw.ca ([24.71.223.10]:15551 "EHLO pd4mo2so.prod.shaw.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754505AbXK1ATE (ORCPT ); Tue, 27 Nov 2007 19:19:04 -0500 Date: Tue, 27 Nov 2007 18:18:58 -0600 From: Robert Hancock Subject: Re: Dynticks Causing High Context Switch Rate in ksoftirqd In-reply-to: <1887.192.128.167.68.1196188273.squirrel@www.techfinesse.net> To: bdupree@techfinesse.com Cc: linux-kernel Message-id: <474CB3F2.9020901@shaw.ca> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7bit References: <474B9EC1.5020304@shaw.ca> <1887.192.128.167.68.1196188273.squirrel@www.techfinesse.net> User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 858 Lines: 22 bdupree@techfinesse.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@nospamshaw.ca Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/