From: kenneth topp <toppk@bllue.org>
To: linux-btrfs@vger.kernel.org
Subject: block group tree conversion
Date: Wed, 22 Mar 2023 15:13:20 -0400 (EDT) [thread overview]
Message-ID: <e338e8df-b0f4-f25d-0bd7-650d37bd1664@bllue.org> (raw)
I'm reportting my success with converting to blockgroup tree so
that others may benefit.
running 6.2.7-300.fc38.x86_64 kernel from fedora 38 (in beta), which
a self compiled version of btrfs-progs with --enable-experimental option.
The conversion took around 90 minutes, and the mount time went from around
250 seconds to 5 seconds.
The filesystem is around 600k inodes, 51TB used, and didn't use any
features like snapshots or compression, and was created with '-O no-holes
-d single -m raid1' options and is mounted with
'defaults,noatime,space_cache=v2'.
I hope the experimental flag is dropped soon, so that others can see
similar mount time improvements. I can now remove the systemd settings
override I needed to allow the system to successfully boot up
(DefaultTimeoutStartSec).
Ken
reply other threads:[~2023-03-22 19:14 UTC|newest]
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