From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756000Ab3GKNfs (ORCPT ); Thu, 11 Jul 2013 09:35:48 -0400 Received: from smtp.citrix.com ([66.165.176.89]:43226 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755894Ab3GKNfp (ORCPT ); Thu, 11 Jul 2013 09:35:45 -0400 X-IronPort-AV: E=Sophos;i="4.87,1043,1363132800"; d="scan'208";a="36379083" Message-ID: <51DEB4AF.5070307@citrix.com> Date: Thu, 11 Jul 2013 14:35:43 +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: Roger Pau Monne CC: , Subject: Re: [Xen-devel] [PATCH RFC 0/4] xen-block: prevent blkfront for hoarding grants References: <1373288607-1876-1-git-send-email-roger.pau@citrix.com> In-Reply-To: <1373288607-1876-1-git-send-email-roger.pau@citrix.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.2.76] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/07/13 14:03, Roger Pau Monne wrote: > This series also includes a bug fix for the grant table free callback > implementation. I think this should have been split out from this series. > According to my tests, this series don't introduce any performance > regressions, results can be seen at: > > http://xenbits.xen.org/people/royger/persistent_unmap/ The graphs do show performance differences (although they don't look significant). They are also lacking any error bars or any explanation of what the tests were and what the test system was. David