linux-ext4 - [PATCH 0/3] ext4: Avoid transaction stalls during writeback

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Message-Id: <20170411135418.9638-1-jack@suse.cz>
Date:   Tue, 11 Apr 2017 15:54:15 +0200
From:   Jan Kara <jack@...e.cz>
To:     Ted Tso <tytso@....edu>
Cc:     <linux-ext4@...r.kernel.org>, Jan Kara <jack@...e.cz>
Subject: [PATCH 0/3] ext4: Avoid transaction stalls during writeback

Hello,

this series fixes stalls I've observed during a workload simulating Postgress
database. The series reduces transaction commit times about 100x in my test
setup. See patch 3/3 for more details about the workload and the results.
The series has passed testing with xfstests with 4k and 1k blocksize and
a test with 4k blocksize in dioreadnolock mode.

								Honza