From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sfi-mx-4.v28.ch3.sourceforge.com ([172.29.28.124] helo=mx.sourceforge.net) by h25xhf1.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1N59RQ-0003jn-Cc for ltp-list@lists.sourceforge.net; Tue, 03 Nov 2009 02:48:16 +0000 Received: from [222.73.24.84] (helo=song.cn.fujitsu.com) by 1b2kzd1.ch3.sourceforge.com with esmtp (Exim 4.69) id 1N59RH-0004hI-JN for ltp-list@lists.sourceforge.net; Tue, 03 Nov 2009 02:48:16 +0000 Message-ID: <4AEF99CF.5080401@cn.fujitsu.com> Date: Tue, 03 Nov 2009 11:47:43 +0900 From: Miao Xie MIME-Version: 1.0 References: <4AE54BCA.7060104@cn.fujitsu.com> <1256563577.4929.35.camel@subratamodak.linux.ibm.com> <1256650551.4957.33.camel@subratamodak.linux.ibm.com> <1256841114.5210.25.camel@subratamodak.linux.ibm.com> In-Reply-To: <1256841114.5210.25.camel@subratamodak.linux.ibm.com> Subject: Re: [LTP] [PATCH] Add new testcases for ext4 new features - V3 List-Id: Linux Test Project General Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-list-bounces@lists.sourceforge.net To: subrata@linux.vnet.ibm.com Cc: LTP-ML Hi,Subrata Sorry for the late reply. I have no time to do the following job recently. But don't worry. I will do it before the next release. >>> On 2009-10-26, at 07:26, Subrata Modak wrote: >>>> We had recently added EXT4 testcases to LTP. As the author of these >>>> tests mentioned, we saw 2 such failures in subdirectory limit test: >>>> >>>> Ext4 subdir limit test >>>> ext4-subdir-limit 0 TINFO : Num of dirs to create: 65537, Dir >>>> name >>>> len: short name Parent dir: mnt_point, Block >>>> size: 1024 >>>> mke2fs 1.41.9 (22-Aug-2009) >>>> tune2fs 1.41.9 (22-Aug-2009) >>>> Setting test filesystem flag >>>> /dev/VG1_EXT4/LV1_EXT4: The test_fs flag is set (and ext4 is >>>> available). >>>> CLEARED. >>> You don't need to set the test_fs flag for modern ext4. >> Miao, >> >> Can we change this ? Ok, no problem. >>>> ext4-subdir-limit 0 TINFO : Num of dirs to create: 65537, Dir >>>> name >>>> len: long name Parent dir: mnt_point, Block >>>> size: 1024 >>>> mkdir: No space left on device >>>> ext4-subdir-limit 2 TFAIL : failed to create directories - 19524 ... >>>> ext4-subdir-limit 0 TINFO : Num of dirs to create: 65537, Dir >>>> name >>>> len: long name Parent dir: mnt_point/sub, >>>> Block >>>> size: 1024 >>>> mkdir: No space left on device >>>> ext4-subdir-limit 4 TFAIL : failed to create directories - 19483 ... >>>> Is this a known issue for EXT4 ? >>> Creating many long filenames (255 bytes) in a 1kB block filesystem is a >>> known issue that is not expected to be fixed (at least I'm not aware of >>> any work being done in this area). A vast majority of filesystems >>> today are formatted with 4kB blocks (due to disk size) and the >>> overhead of >>> managing 1kB block filesystems makes these only marginally used, and it >>> is also very rare to have applications with such large filenames. >> Ok. I will remove these testcases. >> However, it is also accompanied by the following failures in the online-defrag part: >> ======================================================================================== >> ext4-online-defrag 0 TINFO : defrag type: 1, defrag obj: 3, block size: 1024 >> 71301958656 bytes (71 GB) copied, 2694.12 s, 26.5 MB/s >> ext4-online-defrag 3 TFAIL : e4defrag returned failure ... >> ext4-online-defrag 0 TINFO : defrag type: 2, defrag obj: 3, block size: 1024 >> 71301958656 bytes (71 GB) copied, 2623.31 s, 27.2 MB/s >> ext4-online-defrag 6 TFAIL : e4defrag returned failure >> ext4-online-defrag 0 TINFO : defrag type: 3, defrag obj: 1, block size: 1024 >> ext4-online-defrag 7 TFAIL : e4defrag returned failure >> ext4-online-defrag 0 TINFO : defrag type: 3, defrag obj: 2, block size: 1024 >> 41943040 bytes (42 MB) copied, 0.737014 s, 56.9 MB/s >> ext4-online-defrag 8 TFAIL : e4defrag returned failure >> ext4-online-defrag 0 TINFO : defrag type: 3, defrag obj: 3, block size: 1024 >> 71301958656 bytes (71 GB) copied, 2544.39 s, 28.0 MB/s >> ext4-online-defrag 9 TFAIL : e4defrag returned failure >> ... >> ext4-online-defrag 0 TINFO : defrag type: 3, defrag obj: 2, block size: 4096 >> 41943040 bytes (42 MB) copied, 0.306366 s, 137 MB/s >> ext4-online-defrag 17 TFAIL : e4defrag returned failure >> ext4-online-defrag 0 TINFO : defrag type: 3, defrag obj: 3, block size: 4096 >> 71241666560 bytes (71 GB) copied, 1019.79 s, 69.9 MB/s >> ext4-online-defrag 18 TFAIL : e4defrag returned failure >> incrementing stop >> ======================================================================================== >> Did you see these failure on your machine ? I didn't find these failure on my box. I need more information to analyse. so I'll make a patch to get more information later. >> Some more points are: >> >> 1. Can you please run these tests against the backdrop of the >> Makefile changes in LTP to see all the build/install/run are >> executing fine, > > Could you please verify this before this release. Let me know a patch if > you find any discrepancy :-) Sorry for that I couldn't do it before the release. I'll do it before the next release. > >> 2. Can you also please put all the utilities version info at the >> beginning of the test rather than printing them again and >> again(like mke2fs 1.41.9 (22-Aug-2009),tune2fs 1.41.9 >> (22-Aug-2009),dumpe2fs 1.41.9 (22-Aug-2009),dumpe2fs 1.41.9 >> (22-Aug-2009)) > > This can go in the next month release as well, if you do not have time > to fix now. Else, i have a bug mouth to eat this as well ;-) I'll do it before the next release. Regards. Miao > > Regards-- > Subrata > >> Regards-- >> Subrata >> >>>> Following the various system information on which we ran the test: >>>> 1) uname -a >>>> Linux 2.6.31 #1 SMP Tue Oct 20 22:57:16 IST 2009 i686 i686 i386 >>>> GNU/Linux >>>> >>>> 2) grep -i ext4 .config >>>> CONFIG_EXT4_FS=m >>>> CONFIG_EXT4DEV_COMPAT=y >>>> CONFIG_EXT4_FS_XATTR=y >>>> CONFIG_EXT4_FS_POSIX_ACL=y >>>> CONFIG_EXT4_FS_SECURITY=y >>>> >>>> 3) mkfs.ext4 -V >>>> mke2fs 1.41.9 (22-Aug-2009) >>>> Using EXT2FS Library version 1.41.9 >>>> e2fsprogs-1.41.9 >>>> e2fsprogs-libs-1.41.9 >>>> >>>> 4) LTP used: >>>> Unreleased CVS repository. See the URL below to download: >>>> http://ltp.sourceforge.net/documentation/how-to/ltp.php#_3.1, >>>> >>>> You can also also directly review the attached patch(which added this >>>> test cases): >>>> 26_10_2009-(Miao-Xie)- >>>> Add_new_testcases_for_ext4_new_features_V3.patch.regenerated, >>>> >>>> 5) I used a single 680GB LVM partition to test this. >>>> >>>> Kindly let us know your thoughts on this failures. >>> Cheers, Andreas >>> -- >>> Andreas Dilger >>> Sr. Staff Engineer, Lustre Group >>> Sun Microsystems of Canada, Inc. >>> >> ------------------------------------------------------------------------------ >> Come build with us! The BlackBerry(R) Developer Conference in SF, CA >> is the only developer event you need to attend this year. Jumpstart your >> developing skills, take BlackBerry mobile applications to market and stay >> ahead of the curve. Join us from November 9 - 12, 2009. 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