From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dor Laor Subject: Re: Benchmarking warning Date: Sat, 26 Jan 2008 01:42:28 +0200 Message-ID: <1201304548.2944.11.camel@localhost.localdomain> References: <479A60B3.9040200@cs.ualberta.ca> Reply-To: dor.laor-atKUWr5tajBWk0Htik3J/w@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel To: Cam Macdonell Return-path: In-Reply-To: <479A60B3.9040200-edFDblaTWIyXbbII50Afww@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org On Fri, 2008-01-25 at 15:20 -0700, Cam Macdonell wrote: > Hi, > > I get the following warning in the kernel messages: > > kvm: emulating preempt notifiers; do not benchmark on this machine > > Is this an accurate warning, should the machine not be used for It's accurate. > benchmarking KVM? or does it mean don't benchmark other applications on > the host? > It's when running kvm (it traps every process scheduling). On newer hosts (2.6.23 >=) the preempt notifiers are integrated and there is no need tapping the scheduler. > Thanks, > Cam > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > kvm-devel mailing list > kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > https://lists.sourceforge.net/lists/listinfo/kvm-devel ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/