Re: Remote fork() and Parallel programming

Emil Briggs (briggs@bucky.physics.ncsu.edu)
Mon, 15 Jun 1998 10:00:24 -0400 (EDT)

>
>The fastest TCP latency I know of is about 80,000ns. The fastest Unet
>(no protocols, network mapped into the process' address space) latency
>is about 30,000ns.
>

Are you sure about the 30,000ns figure? There are several solutions
that claim 2-3 microsecond latency using some custom hardware and
userspace libraries. These include

Papers
http://garage.ecn.purdue.edu/~papers/

Shrimp
http://www.CS.Princeton.EDU/shrimp/

Parastation
http://wwwipd.ira.uka.de/parastation/

Disclaimer: I havn't benchmarked any of these so I don't know if the
claims are true. If you have or know of any such benchmarks I would
be intrested in the references.

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