From: Howard Chu <hyc@symas.com>
To: Ceph Development <ceph-devel@vger.kernel.org>
Subject: Re: Fwd: Fwd: [newstore (again)] how disable double write WAL
Date: Mon, 22 Feb 2016 17:17:22 +0000 [thread overview]
Message-ID: <56CB42A2.1090901@symas.com> (raw)
In-Reply-To: <56CB346B.50200@redhat.com>
(Just as an aside on the Subject - in preliminary testing with a run of the
mill 32GB microSD card, LMDB on a raw partition performs synchronous commits
~8x faster than the same card formatted with an ext4 filesystem. There's a
huge cost to journaling filesystems that a reliable database engine simply
doesn't need.)
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
next prev parent reply other threads:[~2016-02-22 17:48 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <9D046674-EA8B-4CB5-B049-3CF665D4ED64@aevoo.fr>
2015-11-24 20:42 ` Fwd: [newstore (again)] how disable double write WAL Sage Weil
[not found] ` <CA+gn+znHyioZhOvuidN1pvMgRMOMvjbjcues_+uayYVadetz=A@mail.gmail.com>
2015-12-01 20:34 ` Fwd: " David Casier
2015-12-01 22:02 ` Sage Weil
2015-12-04 20:12 ` Ric Wheeler
2015-12-04 20:20 ` Eric Sandeen
2015-12-08 4:46 ` Dave Chinner
2016-02-15 15:18 ` David Casier
2016-02-15 16:21 ` Eric Sandeen
2016-02-16 3:35 ` Dave Chinner
2016-02-16 8:14 ` David Casier
2016-02-16 8:39 ` David Casier
2016-02-19 5:26 ` Dave Chinner
2016-02-19 11:28 ` Blair Bethwaite
2016-02-19 12:57 ` Mark Nelson
2016-02-22 12:01 ` Sage Weil
2016-02-22 17:09 ` David Casier
2016-02-22 17:16 ` Sage Weil
2016-02-18 17:54 ` David Casier
2016-02-19 17:06 ` Eric Sandeen
2016-02-21 10:56 ` David Casier
2016-02-22 15:56 ` Eric Sandeen
2016-02-22 16:12 ` David Casier
2016-02-22 16:16 ` Eric Sandeen
2016-02-22 17:17 ` Howard Chu [this message]
2016-02-23 5:20 ` Dave Chinner
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