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Re: Hardware performance events are not counted by "perf" in a 2.6.31.12 KVM guest

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From: Joerg Roedel
Subject: Re: Hardware performance events are not counted by "perf" in a 2.6.31.12 KVM guest
Date: Sunday, March 28, 2010 - 4:57 am

On Fri, Mar 26, 2010 at 10:03:10PM -0400, Naresh Rapolu wrote:

The KVM guest has no access to the hardware counters of the cpu. KVM
ignores these accesses from guests. Making this work needs proper
virtualization of the PMU which is not implemented yet.

Regards,

	Joerg

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Messages in current thread:
Hardware performance events are not counted by "perf" i ..., Naresh Rapolu, (Fri Mar 26, 7:03 pm)
Re: Hardware performance events are not counted by "perf" ..., Joerg Roedel, (Sun Mar 28, 4:57 am)