Messages in this thread | | | Date | Sun, 15 Jul 2012 19:51:48 -0600 | From | David Ahern <> | Subject | Re: perf with precise attribute kills all KVM based VMs |
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On 7/12/12 10:13 AM, Gleb Natapov wrote: > On Thu, Jul 12, 2012 at 07:06:35PM +0300, Gleb Natapov wrote: >>> >>> So, is the idea of your patch to not enable the PEBS in guest mode? >>> >> Yes, the idea of my patch is to disable PEBS and the guest entry. >> > BTW what is you host cpu? My patch works only for those that have global > control register to disable PMU events, but that should cover most of > moder cpus.
So far all tests have been done on an HP with 2 Nehalem processors (E5540); I have another server with a couple of Westmere's (E5620) that I will test at some point.
David
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