From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: About Xenoprof support in pvops Date: Mon, 20 Sep 2010 11:16:59 -0400 Message-ID: <20100920151659.GF14537@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: Xiang Song Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Fri, Sep 10, 2010 at 12:13:29AM +0800, Xiang Song wrote: > Hi, list: > > I am trying to do some profile work on Xen 4.0 with pvops kernel on an AMD > machine (equipped with *AMD* '*Istanbul*' Family 10h processors). I have > found the dulloor's xenoprof patch for pvops kernel. But it does not contain > supports for IBS. The only IBS support for xenoprofile posted by Wei Wang > seems to be for 2.6.18-dom0 kernel. So is there any support for pvops kernel > to use IBS on AMD? Not likely. But we would welcome any patches to get it working again. > > Another question is when i am using normal profiling event (such as L2_MISS) > on my AMD machine, it seems that it does not generate interrupt when the > performance counter overflows. Is there any problem with AMD processor or > the xenoprofile patch? Does it work under a baremetal kernel?