> >
> >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
>
He's not refering to banging the hardware from userspace (well, I wasn't
and he was replying to me)..
Though I can't imagine that it needs to be *that* high.. With a special
(non-ip, non checksummed) ethernet protocall for san's and a highly
optimized networking path much lower should be possible..
I still think my point in clear, such remote fork and migration should
workable if the migration is infrequent enough.
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