From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Don't mount hardware performance counter using xenoprof Date: Mon, 10 Jan 2011 09:26:46 -0500 Message-ID: <20110110142646.GA5019@dumpdata.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Yuto Nakai Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Sat, Jan 08, 2011 at 04:06:58PM +0900, Yuto Nakai wrote: > Hi, > > I want to use xenoprof to profile the overhead of the hypervisor. > I patched the oprofile-0.9.5 using the patch from xenoprof.sourceforge.net > > Debian GNU/Linux 5.0 (lenny) > Xen-4.0.1 + 2.6.32.27 (linux-2.6-pvops.git) Dom0 > My platform is Intel(R) Core(TM) i7 CPU 960 @ 3.20GHz > > My problems are: > In Dom0, But hardware performance counters don't be mounted > after initialization (opcontrol --init) > > # ls /dev/oprofile > backtrace_depth cpu_buffer_size pointer_size > buffer cpu_type stats > buffer_size dump time_slice > buffer_watershed enable > > 0(and 1,2,3) directories are not exist. > > Is there any reason for this ? Do they exist when booting a baremetal kernel? > > Any help is appreciated. Thanks, Yuto Nakai > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel