Re: Idea to make a kickass TCP read!

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 7 Aug 1998 01:37:11 +0100 (BST)

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> What if we created a read call that was identical in every way, except
> you passed it a SHM handle. It would directly write the data to the
> SHM segment rather than doing a NIC -> kernel -> user operation?
>
> This would make a one copy high performance, low-latency TCP read for
> the Cluster nuts.

No it wouldnt. Zero copy TCP is hard and on current PC type cards basically
impossible for most cases

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Next message: Edgar Toernig: "[PATCH] 2.0.35 scsi.c single_lun flag"
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