Re: [PATCH 1/2] aio: add vectored I/O support

From: Joel Becker
Date: Fri Oct 15 2004 - 22:15:11 EST


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

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