I was under the impression that a different thread *is* a different
context... it has its own stack, its own registers, and probably can
have its own memory address space too. They're basically like
processes, except they tend to share an awful lot of their memory with
other threads of the same "process".
In this case, I fail to see why it would be significantly faster to
switch between threads than it is to switch between processes. I should
probably write a program to benchmark this to find out for certain, I