From: Jonah H. Harris <jonah.harris@gmail.com>
To: Jim C. Nasby <decibel@decibel.org>
Cc: Heikki Linnakangas <heikki@enterprisedb.com>
Cc: Dimitri <dimitrik.fr@gmail.com>
Cc: PostgreSQL Performance <pgsql-performance@postgresql.org>
Subject: Re: Filesystem Direct I/O and WAL sync option
Date: Mon, 9 Jul 2007 16:46:32 -0400
Message-ID: <36e682920707091346w49824ac6x65c8adddbaa0ef7@mail.gmail.com> (raw)
In-Reply-To: <20070709203220.GO39272@nasby.net>
References: <5482c80a0707030754o740c82b6s4598dc668720d014@mail.gmail.com>
<468A65F5.8020800@enterprisedb.com>
<20070709203220.GO39272@nasby.net>
On 7/9/07, Jim C. Nasby <decibel@decibel.org> wrote:
> BTW, it might be worth trying the different wal_sync_methods. IIRC,
> Jonah's seen some good results from open_datasync.
On Linux, using ext3, reiser, or jfs, I've seen open_sync perform
quite better than fsync/fdatasync in most of my tests. But, I haven't
done significant testing with direct I/O lately.
--
Jonah H. Harris, Software Architect | phone: 732.331.1324
EnterpriseDB Corporation | fax: 732.331.1301
33 Wood Ave S, 3rd Floor | jharris@enterprisedb.com
Iselin, New Jersey 08830 | http://www.enterprisedb.com/
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To: pgsql-performance@postgresql.org
Cc: jonah.harris@gmail.com, decibel@decibel.org, heikki@enterprisedb.com, dimitrik.fr@gmail.com
Subject: Re: Filesystem Direct I/O and WAL sync option
In-Reply-To: <36e682920707091346w49824ac6x65c8adddbaa0ef7@mail.gmail.com>
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