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- Open-MX: an implementation of MXoE - similar to GAMMA. 20 us latency (40 us RTT) (current)
- UNet - an OS Bypass mechanism which achieves < 60 us RTT (1996)
- Virtual Interface Architecture - Latency of < 40 us, when implemented in silicon (2002)
- Active Messaging
- Client sends code to be executed on the server.
- No modern implementation, RTT of 50 us in 1995
- Sort of what we are doing now...
- UVM - Modifications to the VM system to support sharing data between kernel and user
What's the best we can do?
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