* Benchmarking warning
@ 2008-01-25 22:20 Cam Macdonell
[not found] ` <479A60B3.9040200-edFDblaTWIyXbbII50Afww@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Cam Macdonell @ 2008-01-25 22:20 UTC (permalink / raw)
To: kvm-devel
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
benchmarking KVM? or does it mean don't benchmark other applications on
the host?
Thanks,
Cam
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* Re: Benchmarking warning [not found] ` <479A60B3.9040200-edFDblaTWIyXbbII50Afww@public.gmane.org> @ 2008-01-25 23:42 ` Dor Laor 0 siblings, 0 replies; 2+ messages in thread From: Dor Laor @ 2008-01-25 23:42 UTC (permalink / raw) To: Cam Macdonell; +Cc: kvm-devel 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/ ^ permalink raw reply [flat|nested] 2+ messages in thread
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2008-01-25 22:20 Benchmarking warning Cam Macdonell
[not found] ` <479A60B3.9040200-edFDblaTWIyXbbII50Afww@public.gmane.org>
2008-01-25 23:42 ` Dor Laor
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