Re: True fsync() in Linux (on IDE)
From: Jens Axboe (axboe_at_suse.de)
Date: 03/18/04
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Date: Thu, 18 Mar 2004 07:47:58 +0100 To: Peter Zaitsev <peter@mysql.com>
On Wed, Mar 17 2004, Peter Zaitsev wrote:
> Hello,
>
> I'm wondering is there any way in Linux to do proper fsync(), which
> makes sure data is written to the disk.
>
> Currently on IDE devices one can see, fsync() only flushes data to the
> drive cache which is not enough for ACID guaranties database server must
> give.
>
> There is solution just to disable drive write cache, but it seems to
> slowdown performance way to much.
Chris and I have working real fsync() with the barrier patches. I'll
clean it up and post a patch for vanilla 2.6.5-rc today.
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