From: "Holger Hoffstätte" <holger.hoffstaette@googlemail.com>
To: Martin Steigerwald <martin@lichtvoll.de>
Cc: Btrfs mailing list <linux-btrfs@vger.kernel.org>
Subject: Re: [GIT PULL] Btrfs
Date: Mon, 18 Jan 2016 11:52:29 +0100 [thread overview]
Message-ID: <569CC3ED.50108@googlemail.com> (raw)
In-Reply-To: <3289863.t1Fo0U0Yqz@merkaba>
(trimmed cc:)
On 01/18/16 11:25, Martin Steigerwald wrote:
> Chris,
>
> Am Sonntag, 17. Januar 2016, 18:30:34 CET schrieb Chris Mason:
>> For very large filesystems (30T+) our existing free space caching code
>> can end up taking a huge amount of time during commits. The new tree
>> based code is faster and less work overall to update as the commit
>> progresses.
>
> Will be interesting to see whether this also helps with:
>
> [Bug 90401] New: btrfs kworker thread uses up 100% of a Sandybridge core for
> minutes on random write into big file
Unlikely, because the fst addresses something entirely different. It's much
more likely that whatever CPU spinning was going on there was addressed by
Josef's allocator fixes in 4.4 [1], which removed a lot of looping and
unnecessary/repeated work.
-h
[1] https://git.kernel.org/cgit/linux/kernel/git/mason/linux-btrfs.git/log/?h=for-linus-4.4&ofs=50
next prev parent reply other threads:[~2016-01-18 10:52 UTC|newest]
Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-17 23:30 [GIT PULL] Btrfs Chris Mason
2016-01-18 10:25 ` Martin Steigerwald
2016-01-18 10:52 ` Holger Hoffstätte [this message]
-- strict thread matches above, loose matches on Subject: below --
2017-06-10 13:00 Chris Mason
2017-05-09 17:56 Chris Mason
2017-05-09 18:01 ` Chris Mason
2017-04-28 0:26 Chris Mason
2017-04-14 18:28 Chris Mason
2017-03-31 21:05 Chris Mason
2017-03-23 15:09 Chris Mason
2017-03-02 20:19 Chris Mason
2017-02-25 0:56 Chris Mason
2017-02-11 13:18 Chris Mason
2017-01-27 19:37 Chris Mason
2016-12-16 17:01 Chris Mason
2016-11-04 17:28 Chris Mason
2016-10-28 14:08 Chris Mason
2016-10-14 20:31 Chris Mason
2016-10-11 15:46 Chris Mason
2016-09-23 20:01 Chris Mason
2016-09-09 17:46 Chris Mason
2016-09-03 13:54 Chris Mason
2016-08-26 23:36 Chris Mason
2016-08-10 12:10 Chris Mason
2016-08-04 19:12 Chris Mason
2016-07-31 13:55 Chris Mason
2016-06-18 13:01 Chris Mason
2016-06-10 20:01 Chris Mason
2016-06-03 20:57 Chris Mason
2016-05-27 17:44 Chris Mason
2016-05-21 14:18 Chris Mason
2016-04-08 20:43 Chris Mason
2016-04-01 22:45 Chris Mason
2016-03-22 0:24 Chris Mason
2016-03-22 1:16 ` Linus Torvalds
2016-03-22 2:15 ` Chris Mason
2016-03-22 2:24 ` Chris Mason
2016-03-22 2:38 ` Linus Torvalds
2016-03-04 18:51 Chris Mason
2016-02-19 19:08 Chris Mason
2016-02-12 16:43 Chris Mason
2016-01-29 18:42 Chris Mason
2016-01-22 16:34 Chris Mason
2015-12-18 17:28 Chris Mason
2015-11-27 21:13 Chris Mason
2015-11-13 20:37 Chris Mason
2015-11-06 18:44 Chris Mason
2015-10-23 12:47 Chris Mason
2015-10-16 17:34 Chris Mason
2015-10-09 17:42 Chris Mason
2015-09-25 17:35 Chris Mason
2015-09-11 18:44 Chris Mason
2015-08-08 19:41 Chris Mason
2015-07-31 18:21 Chris Mason
2015-07-17 19:38 Chris Mason
2015-07-10 19:15 Chris Mason
2015-06-29 21:11 Chris Mason
2015-05-23 1:14 Chris Mason
2015-05-26 12:33 ` Josh Boyer
2015-05-26 12:54 ` Chris Mason
2015-06-02 14:02 ` Josh Boyer
2015-06-26 14:21 ` David Sterba
2015-03-06 21:45 Chris Mason
2015-02-26 2:01 Chris Mason
2015-02-19 20:36 Chris Mason
2015-02-20 10:09 ` Markus Trippelsdorf
2014-11-09 1:17 Chris Mason
2014-10-11 0:41 Chris Mason
2014-08-14 17:59 Chris Mason
2014-08-14 18:10 ` Linus Torvalds
2014-08-14 18:17 ` Chris Mason
2014-07-20 14:33 Chris Mason
2014-07-04 14:42 Chris Mason
2014-06-20 15:53 Chris Mason
2014-05-20 19:25 Chris Mason
2014-04-26 23:31 Chris Mason
2014-02-16 13:13 Chris Mason
2014-02-09 19:13 Chris Mason
2014-02-04 17:59 Chris Mason
2014-01-30 21:52 Chris Mason
2014-02-02 0:15 ` David Rientjes
2014-02-02 1:28 ` Filipe David Manana
2014-02-02 2:40 ` David Rientjes
2014-02-02 8:09 ` Chris Samuel
2014-02-03 17:54 ` David Sterba
2014-02-03 18:18 ` Chris Mason
2014-02-04 19:50 ` Greg KH
2014-02-04 19:52 ` Chris Mason
2013-12-12 21:57 Chris Mason
2013-11-21 18:35 Chris Mason
2013-11-15 15:19 Chris Mason
2013-11-15 16:11 ` Geert Uytterhoeven
2013-11-14 17:19 Chris Mason
2013-11-15 11:32 ` Heiko Carstens
2013-11-15 12:21 ` Chris Mason
2013-11-15 13:40 ` Chris Mason
2013-11-15 13:42 ` Geert Uytterhoeven
2013-11-15 14:57 ` Heiko Carstens
2013-11-17 9:36 ` Gleb Natapov
2013-11-18 9:35 ` Heiko Carstens
2013-11-18 10:30 ` Will Deacon
2013-10-18 23:24 Chris Mason
2013-10-12 1:01 Chris Mason
2013-10-05 17:36 Chris Mason
2013-09-22 20:50 Chris Mason
2013-09-12 15:36 Chris Mason
2013-09-12 20:38 ` Josh Boyer
2013-09-13 6:44 ` Geert Uytterhoeven
2013-09-13 11:53 ` Josh Boyer
2013-09-13 12:15 ` Russell King
2013-09-13 12:36 ` Geert Uytterhoeven
2013-09-13 15:06 ` Josh Boyer
2013-09-13 15:38 ` Josh Boyer
2013-09-13 15:58 ` Russell King
2013-09-14 9:33 ` Heiko Carstens
2013-09-13 13:07 ` Ric Wheeler
2013-09-13 14:11 ` Hugo Mills
2013-08-10 12:28 Chris Mason
2013-07-09 19:18 Chris Mason
2013-06-14 1:29 Chris Mason
2013-05-09 19:26 Chris Mason
2013-03-02 15:15 Chris Mason
2013-03-02 15:41 ` Liu Bo
2013-03-03 0:45 ` Linus Torvalds
2013-03-03 1:10 ` Chris Mason
2012-10-09 21:05 Chris Mason
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