Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753419Ab3IKJdx (ORCPT ); Wed, 11 Sep 2013 05:33:53 -0400 Received: from smtp02.citrix.com ([66.165.176.63]:27668 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751817Ab3IKJdw (ORCPT ); Wed, 11 Sep 2013 05:33:52 -0400 X-IronPort-AV: E=Sophos;i="4.90,883,1371081600"; d="scan'208";a="50377707" Message-ID: <523038FD.4070100@citrix.com> Date: Wed, 11 Sep 2013 10:33:49 +0100 From: David Vrabel User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.16) Gecko/20121215 Iceowl/1.0b1 Icedove/3.0.11 MIME-Version: 1.0 To: Boris Ostrovsky CC: , , , Subject: Re: [Xen-devel] [PATCH v1 0/5] xen/PMU: PMU support for Xen PV guests References: <1378827110-4192-1-git-send-email-boris.ostrovsky@oracle.com> In-Reply-To: <1378827110-4192-1-git-send-email-boris.ostrovsky@oracle.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.2.76] X-DLP: MIA1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 867 Lines: 22 On 10/09/13 16:31, Boris Ostrovsky wrote: > This is the Linux side of Xen PMU support for PV guests, including dom0. Only > kernel changes are here, toolstack patch will be provided separately. > > Here is description from the hypervisor patch submission that applies to this > series as well: > > This version has following limitations: > * For accurate profiling of dom0/Xen dom0 VCPUs should be pinned. > * Hypervisor code is only profiled on processors that have running dom0 VCPUs > on them. > * No backtrace support. These are some pretty significant limitations. Is there a plan for how to remove them? David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/