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From: Eryu Guan <eguan@redhat.com>
To: Dave Chinner <david@fromorbit.com>
Cc: Tejun Heo <tj@kernel.org>, Jens Axboe <axboe@kernel.dk>,
	Jan Kara <jack@suse.cz>,
	linux-kernel@vger.kernel.org, xfs@oss.sgi.com, axboe@fb.com,
	Jan Kara <jack@suse.com>,
	linux-fsdevel@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH block/for-linus] writeback: fix syncing of I_DIRTY_TIME inodes
Date: Fri, 21 Aug 2015 18:20:53 +0800	[thread overview]
Message-ID: <20150821102053.GL17933@dhcp-13-216.nay.redhat.com> (raw)
In-Reply-To: <20150818215611.GD3902@dastard>

On Wed, Aug 19, 2015 at 07:56:11AM +1000, Dave Chinner wrote:
> On Tue, Aug 18, 2015 at 12:54:39PM -0700, Tejun Heo wrote:
[snip]
> 
> I'd suggest looking at some of the XFS tracepoints during the test:
> 
> tracepoint			trigger
> xfs_file_buffered_write		once per write syscall
> xfs_file_sync			once per fsync per inode
> xfs_vm_writepage		every ->writepage call
> xfs_setfilesize			every IO completion that updates inode size
> 
> And it's probably best to also include all the writeback
> tracepoints, too, for context. That will tell you what inodes and
> what part of them are getting written back and when....

I finally reproduced generic/048 with both xfs and writeback tracepoints
enabled, please download the trace dat file and trace report file from

http://128.199.137.77/writeback/

Thanks,
Eryu

  parent reply	other threads:[~2015-08-21 10:20 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20150812101204.GE17933@dhcp-13-216.nay.redhat.com>
2015-08-13  0:44 ` generic/04[89] fail on XFS due to change in writeback code [4.2-rc1 regression] Dave Chinner
2015-08-13 15:34   ` Tejun Heo
2015-08-13 19:16     ` Tejun Heo
2015-08-13 22:44   ` [PATCH block/for-linus] writeback: fix syncing of I_DIRTY_TIME inodes Tejun Heo
2015-08-14 11:14     ` Jan Kara
2015-08-14 15:14       ` Damien Wyart
2015-08-17 20:00         ` Tejun Heo
2015-08-18  5:33           ` Damien Wyart
2015-08-17 20:02       ` Tejun Heo
2015-08-18  9:16         ` Jan Kara
2015-08-18 17:47           ` Tejun Heo
2015-08-18 19:54             ` Tejun Heo
2015-08-18 21:56               ` Dave Chinner
2015-08-20  6:12                 ` Eryu Guan
2015-08-20 14:01                   ` Eryu Guan
2015-08-20 14:36                   ` Eryu Guan
2015-08-20 14:37                     ` Eryu Guan
2015-08-20 16:55                       ` Tejun Heo
2015-08-20 23:04                         ` Dave Chinner
2015-08-24 18:10                           ` Tejun Heo
2015-08-24 22:27                             ` Dave Chinner
2015-08-24 22:53                               ` Tejun Heo
2015-08-21 10:20                 ` Eryu Guan [this message]
2015-08-22  0:30                   ` Dave Chinner
2015-08-22  4:46                     ` Eryu Guan
2015-08-24  1:11                       ` Dave Chinner
2015-08-24  3:18                         ` Eryu Guan
2015-08-24  6:24                           ` Dave Chinner
2015-08-24  8:34                             ` Eryu Guan
2015-08-24  8:55                               ` Dave Chinner
2015-08-24  9:19                             ` Jan Kara
2015-08-24 14:51                               ` Tejun Heo
2015-08-24 17:11                                 ` Tejun Heo
2015-08-24 19:08                                   ` Jan Kara
2015-08-24 19:32                                     ` Tejun Heo
2015-08-24 21:09                                       ` Jan Kara
2015-08-24 21:45                                         ` Tejun Heo
2015-08-24 22:54                                           ` Tejun Heo
2015-08-24 22:57                                           ` Dave Chinner
2015-08-25 18:11     ` [PATCH v2 block/for-linus] writeback: sync_inodes_sb() must write out I_DIRTY_TIME inodes and always call wait_sb_inodes() Tejun Heo
2015-08-25 20:37       ` Jens Axboe
2015-08-26  9:00       ` Jan Kara
2015-08-13 23:24   ` generic/04[89] fail on XFS due to change in writeback code [4.2-rc1 regression] Tejun Heo
2015-08-14  6:19     ` Eryu Guan
2015-08-17 20:27       ` Tejun Heo
2015-08-18  3:57         ` Eryu Guan
2015-08-18  5:31           ` Eryu Guan

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