Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932641Ab2JRRmT (ORCPT ); Thu, 18 Oct 2012 13:42:19 -0400 Received: from mail-vb0-f46.google.com ([209.85.212.46]:49566 "EHLO mail-vb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932125Ab2JRRmR (ORCPT ); Thu, 18 Oct 2012 13:42:17 -0400 Date: Thu, 18 Oct 2012 13:42:03 -0400 From: Konrad Rzeszutek Wilk To: David Vrabel Cc: Konrad Rzeszutek Wilk , xen-devel@lists.xensource.com, x86@kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, "H. Peter Anvin" , lenb@kernel.org Subject: Re: [Xen-devel] Is: axe read_tscp pvops call. Was: Re: [RFC] ACPI S3 and Xen (suprisingly small\!). Message-ID: <20121018174200.GA20508@localhost.localdomain> References: <1350481786-4969-1-git-send-email-konrad.wilk@oracle.com> <507ED6C0.4020503@zytor.com> <20121017161036.GA10691@phenom.dumpdata.com> <507EE1C3.7070300@zytor.com> <20121017165452.GA22740@phenom.dumpdata.com> <50802EEC.6060102@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <50802EEC.6060102@citrix.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 559 Lines: 11 > As for 'perf', since Xen already provides a virtual PMU for HVM guests > It's not clear why we would spend the effort to implement another > mechanism for PV guests (instead of using the virtual PMU from a PVH guest). Would that allow one to evaluate the performance/bottlenecks that the hypervisor might have? -- 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/