Messages in this thread | | | Date | Mon, 06 Mar 2006 19:11:20 -0800 (PST) | Subject | Re: Status of AIO | From | "David S. Miller" <> |
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From: Benjamin LaHaise <bcrl@kvack.org> Date: Mon, 6 Mar 2006 21:07:36 -0500
> On Tue, Mar 07, 2006 at 04:04:11AM +0200, Dan Aloni wrote: > > This somehow resembles the scatter-gatter lists already used in some > > subsystems such as the SCSI sg driver. > > None of the iovecs are particularly special. What's special here is that > particulars of the container make the fast path *cheap*.
Please read Druschel and Peterson's paper on fbufs and any followon work before going down this path. Fbufs are exactly what you are proposing as a workaround for the VM cost of page flipping, and the idea has been around since 1993. :-)
As I mentioned Chapter 5 of Networking Algorithmics discusses this in detail, and also covers many related attempts such as I/O Lite. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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