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From: Joel Becker <jlbec@evilplan.org>
To: Yasushi Saito <ysaito@hpl.hp.com>
Cc: linux-aio@kvack.org, linux-kernel@vger.kernel.org,
	suparna@in.ibm.com, Janet Morgan <janetmor@us.ibm.com>
Subject: Re: [PATCH 1/2]  aio: add vectored I/O support
Date: Sat, 16 Oct 2004 04:13:01 +0100	[thread overview]
Message-ID: <20041016031301.GC17142@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <416EDD19.3010200@hpl.hp.com>

On Thu, Oct 14, 2004 at 01:10:01PM -0700, Yasushi Saito wrote:
> This is a patch against 2.6.9-rc3-mm3 that add supports for vectored 
> async I/O.  It adds two additional commands, IO_CMD_PREADV and 
> IO_CMD_PWRITEV to libaio.h. The below is roughly what I did:

	How does this differ substantially from lio_listio() of each I/O
range?  Does it have some significant performance win, or is it just
aiming for a completeness that POSIX doesn't (to my knowledge) specify?

Joel

-- 

Life's Little Instruction Book #464

	"Don't miss the magic of the moment by focusing on what's
	 to come."

			http://www.jlbec.org/
			jlbec@evilplan.org

  reply	other threads:[~2004-10-16  3:13 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-14 20:10 [PATCH 1/2] aio: add vectored I/O support Yasushi Saito
2004-10-16  3:13 ` Joel Becker [this message]
2004-10-16  5:18   ` Avi Kivity
2004-10-16  5:37     ` Joel Becker
2004-10-16  8:43       ` Avi Kivity
2004-10-16 16:28         ` Joel Becker
2004-10-16 17:29           ` Avi Kivity
2004-10-17  0:14             ` Joel Becker
2004-10-17  6:25               ` Avi Kivity
2004-10-16 12:05       ` William Lee Irwin III

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