From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:44464 "EHLO mx0b-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750899AbaACQHM convert rfc822-to-8bit (ORCPT ); Fri, 3 Jan 2014 11:07:12 -0500 From: Chris Mason To: "fengguang.wu@intel.com" CC: "jbacik@fusionio.com" , "linux-btrfs@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "lkp@linux.intel.com" Subject: Re: 1be41b78: +18% increased btrfs write throughput Date: Fri, 3 Jan 2014 16:07:05 +0000 Message-ID: <1388765265.32640.7.camel@ret.masoncoding.com> References: <20140103155421.GA7494@localhost> In-Reply-To: <20140103155421.GA7494@localhost> Content-Type: text/plain; charset="utf-7" MIME-Version: 1.0 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Fri, 2014-01-03 at 23:54 +-0800, fengguang.wu+AEA-intel.com wrote: +AD4- Hi Josef, +AD4- +AD4- FYI. We are doing 0day performance tests and happen to notice that +AD4- btrfs write throughput increased considerably during v3.10-11 time +AD4- frame: +AD4- +AD4- v3.10 v3.11 v3.12 v3.13-rc6 +AD4- --------------- ------------------------- ------------------------- ------------------------- +AD4- 50619 +AH4- 1+ACU- +-17.0+ACU- 59209 +AH4- 2+ACU- +-18.8+ACU- 60159 +AH4- 2+ACU- +-20.5+ACU- 61007 +AH4- 0+ACU- lkp-ws02/micro/dd-write/11HDD-JBOD-cfq-btrfs-1dd +AD4- 50619 +-17.0+ACU- 59209 +-18.8+ACU- 60159 +-20.5+ACU- 61007 TOTAL iostat.sdd.wkB/s +AD4- +AD4- and it's contributed by +AD4- +AD4- commit 1be41b78bc688fc634bf30965d2be692c99fd11d +AD4- Author: Josef Bacik +ADw-jbacik+AEA-fusionio.com+AD4- +AD4- AuthorDate: Wed Jun 12 13:56:06 2013 -0400 +AD4- Commit: Josef Bacik +ADw-jbacik+AEA-fusionio.com+AD4- +AD4- CommitDate: Mon Jul 1 08:52:28 2013 -0400 +AD4- +AD4- Btrfs: fix transaction throttling for delayed refs Bonus points for increasing the performance on purpose. Thanks for running these Wu. -chris