From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752917AbcEGE4n (ORCPT ); Sat, 7 May 2016 00:56:43 -0400 Received: from mail-wm0-f49.google.com ([74.125.82.49]:35228 "EHLO mail-wm0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751134AbcEGE4l (ORCPT ); Sat, 7 May 2016 00:56:41 -0400 Date: Sat, 7 May 2016 06:56:36 +0200 From: Ingo Molnar To: Waiman Long Cc: Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org, Davidlohr Bueso , Jason Low , Dave Chinner , Scott J Norton , Douglas Hatch Subject: Re: [PATCH v2] locking/rwsem: Add reader-owned state to the owner field Message-ID: <20160507045636.GC27659@gmail.com> References: <1462580424-40333-1-git-send-email-Waiman.Long@hpe.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1462580424-40333-1-git-send-email-Waiman.Long@hpe.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Waiman Long wrote: > On a 4-socket Haswell machine running on a 4.6-rc1 based kernel, the > fio test with multithreaded randrw and randwrite tests on the same > file on a XFS partition on top of a NVDIMM were run, the aggregated > bandwidths before and after the patch were as follows: > > Test BW before patch BW after patch % change > ---- --------------- -------------- -------- > randrw 988 MB/s 1192 MB/s +21% > randwrite 1513 MB/s 1623 MB/s +7.3% What testcase/suite is this? I'd like to run this on other machines as well. Thanks, Ingo