From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751263AbaACQHP (ORCPT ); Fri, 3 Jan 2014 11:07:15 -0500 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 Thread-Topic: 1be41b78: +18% increased btrfs write throughput Thread-Index: AQHPCJw4EBmXnMUjt0qDxOSacPU9+JpzsMSA 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> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.57.29] Content-Type: text/plain; charset="utf-7" Content-ID: <73283CD1EF725D4A81F7853D2ED5E667@fb.com> Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.11.87,1.0.14,0.0.0000 definitions=2014-01-03_06:2014-01-03,2014-01-03,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=1.24235475795764e-08 kscore.compositescore=0 circleOfTrustscore=288.6538123 compositescore=0.998981209195878 urlsuspect_oldscore=0.998981209195878 suspectscore=0 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=64355 rbsscore=0.998981209195878 spamscore=0 recipient_to_sender_domain_totalscore=2 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1305240000 definitions=main-1401030093 X-FB-Internal: deliver Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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