Re: fsync vs open_sync

From: Manfred Spraul <manfred(at)colorfullife(dot)com>
To: pgsql(at)mohawksoft(dot)com
Cc: Mark Kirkwood <markir(at)coretech(dot)co(dot)nz>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: fsync vs open_sync
Date: 2004-08-10 18:48:31
Message-ID: 4119187F.6090204@colorfullife.com
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pgsql(at)mohawksoft(dot)com wrote:

>I have been considering a full sweep in my test lab off client time later on.
>
>ext2, ext3, jfs, xfs, and ReiserFS, fsync on with fdatasync or open_sync,
>and fsync off.
>
>
Before you start: double check that the disks are not lying:
At least the suse 2.4 kernel send cache flush commands to ide disks on
fsync(), but not with O_SYNC:

http://marc.theaimsgroup.com/?l=linux-kernel&m=107964507113585

--
Manfred

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