linux-ext4 - [Bug 15906] serious performance regression in "umount" on ext4 over LVM

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Date:	Wed, 5 May 2010 19:44:13 GMT
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 15906] serious performance regression in "umount" on ext4 over
 LVM

https://bugzilla.kernel.org/show_bug.cgi?id=15906


Jens Axboe <axboe@...nel.dk> changed:

           What    |Removed                     |Added
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                 CC|                            |axboe@...nel.dk




--- Comment #15 from Theodore Tso <tytso@....edu>  2010-05-05 19:44:04 ---
The summary for this patch should probably be changed, yes?   It should happen
with filesystems other than ext4 that use barriers (i.e., btrfs, XFS), and it
should happen on a single disk just as easily as a LVM.  The latter I can
confirm --- you can see the performance degradation quite easily on a single
disk, so the mention of LVM in the summary is probably misleading.

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