From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Wright <chrisw@sous-sol.org>
Subject: Re: Hardware performance events are not counted by  "perf"   in a
	2.6.31.12 KVM guest
Date: Fri, 26 Mar 2010 21:38:36 -0700
Message-ID: <20100327043836.GL1744@sequoia.sous-sol.org>
References: <4BAD6630.80608@purdue.edu>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: kvm@vger.kernel.org
To: Naresh Rapolu <nrapolu@purdue.edu>
Return-path: <kvm-owner@vger.kernel.org>
Received: from sous-sol.org ([216.99.217.87]:33991 "EHLO sequoia.sous-sol.org"
	rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP
	id S1750850Ab0C0Ein (ORCPT <rfc822;kvm@vger.kernel.org>);
	Sat, 27 Mar 2010 00:38:43 -0400
Content-Disposition: inline
In-Reply-To: <4BAD6630.80608@purdue.edu>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>

* Naresh Rapolu (nrapolu@purdue.edu) wrote:
> "perf"  tool does not count  hardware performance events ( cache misses  
> etc) in a  KVM guest

The guest does not see a PMU.  For basic profiling you can use timer
based in guest, but there is not yet support for PMU.

thanks,
-chris