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From: Josef Bacik <josef@toxicpanda.com>
To: linux-btrfs@vger.kernel.org, kernel-team@fb.com
Subject: [PATCH 0/5] Fix up some stupid delayed ref flushing behaviors
Date: Fri, 13 Mar 2020 17:12:15 -0400	[thread overview]
Message-ID: <20200313211220.148772-1-josef@toxicpanda.com> (raw)

While debugging Zygo's delayed ref problems it was clear there were a bunch of
cases that we're running delayed refs when we don't need to be, and they result
in a lot of weird latencies.

Each patch has their individual explanations.  But the gist of it is we run
delayed refs in a lot of arbitrary ways that have just accumulated throughout
the years, so clean up all of these so we can have more consistent performance.
Thanks,

Josef


             reply	other threads:[~2020-03-13 21:12 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-13 21:12 Josef Bacik [this message]
2020-03-13 21:12 ` [PATCH 1/5] btrfs: set delayed_refs.flushing for the first delayed ref flushing Josef Bacik
2020-03-13 21:12 ` [PATCH 2/5] btrfs: delayed refs pre-flushing should only run the heads we have Josef Bacik
2020-04-03 14:31   ` Nikolay Borisov
2020-03-13 21:12 ` [PATCH 3/5] btrfs: only run delayed refs once before committing Josef Bacik
2020-04-03 14:34   ` Nikolay Borisov
2020-03-13 21:12 ` [PATCH 4/5] btrfs: run delayed refs less often in commit_cowonly_roots Josef Bacik
2020-04-03 14:43   ` Nikolay Borisov
2020-03-13 21:12 ` [PATCH 5/5] btrfs: stop running all delayed refs during snapshot Josef Bacik
2020-04-03 14:46   ` Nikolay Borisov
2020-03-25 13:51 ` [PATCH 0/5] Fix up some stupid delayed ref flushing behaviors David Sterba
2020-03-25 14:12   ` Josef Bacik
2020-03-26 15:36     ` Zygo Blaxell
2020-03-26 19:58       ` Josef Bacik

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