Does anyone know if there is a zero-copy udp implementation for Linux?
I know that it will have some limitations like not using a standard
socket api, and most likely not being able to use that card for any
other purpose.
Specifically I want absolutely no copying into kernel space; I want to
go between userspace and the ethernet card directly. This of course
makes dispatching to different protocols difficult so I'm fine with
using the card for this purpose only.
I'm trying to use off the shelf components and not have to go to the
specialty products like Myricom. I would also like to use udp because
I want something that is out of the box routable through normal ipv4
routers. However, I'm fine with any unreliable message protocol that
routes by default through ipv4 routers.
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