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Date: Mon, 21 Jan 2002 00:35:52 -0500
From: Benjamin LaHaise <bcrl@redhat.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Andi Kleen <ak@suse.de>, linux-kernel@vger.kernel.org
Subject: Re: performance of O_DIRECT on md/lvm
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On Mon, Jan 21, 2002 at 02:12:24AM +0100, Andrea Arcangeli wrote:
> yes, in short the API to allow the userspace to keep the I/O pipeline
> full with a ring of user buffers is not available at the moment.

See http://www.kvack.org/~blah/aio/ .  Seems to work pretty nicely 
for raw io.

		-ben
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