From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760136AbYHULxk (ORCPT ); Thu, 21 Aug 2008 07:53:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759338AbYHULx1 (ORCPT ); Thu, 21 Aug 2008 07:53:27 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:41466 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760048AbYHULxZ (ORCPT ); Thu, 21 Aug 2008 07:53:25 -0400 Date: Thu, 21 Aug 2008 13:53:04 +0200 From: Ingo Molnar To: Jeremy Fitzhardinge Cc: linux-kernel@vger.kernel.org, xen-devel@lists.xensource.com, Jan Beulich Subject: Re: [PATCH 0 of 4] Xen spinlock updates and performance measurements Message-ID: <20080821115304.GF30667@elte.hu> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Jeremy Fitzhardinge wrote: > Hi Ingo, > > This series has some updates to Xen's spinlock implementation, > including adding a set of performance measurements in debugfs. > > The series consists of: > - correctly deal with a spinlock in an interrupt handler interrupting > another spinlock spinning on a lock. [2.6.27 bugfix] > - Add Xen debugfs support, including performance metrics for > spinlocks, multicalls and mmu operations. > - Allow interrupts to be enabled while spinning (blocking) for a lock > - Measure time spinlocks spend blocked applied to tip/x86/xen - thanks Jeremy. Ingo