here is a thought: the kernel does mmap for code/data. This is because we think of a file as a segment of data that somehow maps well to a segment of memory.
You wouldn't execute code from a stream, now, would you? Well, this: http://www.ambric.com/ has hardware channels. And you can call from channel and execute code being sent down a channel to you from another cpu. There's no real analogue to this in any OS I've used for a while ... You could write the mcilroy sieve in this very directly. You could even, when starting a new thread, push the code down to the next cpu. And that cpu is paused in a call from channel until it gets its code. A nice way to keep them idle until you need them. it's a very interesting architecture, to say the least. For me anyway the most novel thing I've seen in a while. ron
