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From: Phillip Susi <phill@thesusis.net>
To: Dave Chinner <david@fromorbit.com>
Cc: linux-fsdevel@vger.kernel.org, Theodore Ts'o <tytso@mit.edu>
Subject: Re: Uneccesary flushes waking up suspended disks
Date: Fri, 15 Mar 2024 10:05:16 -0400	[thread overview]
Message-ID: <87h6h78uar.fsf@vps.thesusis.net> (raw)
In-Reply-To: <Ze5fOTojI+BhgXOW@dread.disaster.area>

Dave Chinner <david@fromorbit.com> writes:

> How do other filesystems behave? Is this a problem just on specific
> filesystems?

I finally got around to testing other filesystems and surprisingly, it
seems this is only a problem for ext4.  I tried btrfs, f2fs, jfs, udf,
and xfs.  xfs even uses the same jbd2 for journaling that ext4 does
doesn't it?

I just formatted a clean fs, synced, and ran blktrace, then synced
again, and only ext4 emits a flush on the second sync.

  reply	other threads:[~2024-03-15 14:05 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-07 13:53 Uneccesary flushes waking up suspended disks Phillip Susi
2024-03-07 15:37 ` Theodore Ts'o
2024-03-08 20:54   ` Phillip Susi
2024-03-09 17:37     ` Theodore Ts'o
2024-03-12 20:35       ` Phillip Susi
2024-03-11  1:32 ` Dave Chinner
2024-03-15 14:05   ` Phillip Susi [this message]
2024-03-16  4:38     ` Darrick J. Wong
2024-03-16 18:35     ` Phillip Susi
2024-03-17 22:45     ` Dave Chinner
2024-03-20 12:38       ` Phillip Susi
2024-03-20 21:58         ` Dave Chinner
2024-03-25 17:09           ` Phillip Susi

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