Comment Use of this technique in Felix (Score 4, Interesting) 229
FYI this technique is heavily exploited in the programming language Felix:
http://felix.sf.net/
to provide user space threading. The main difference is that all the 'C tricks' are generated automatically by the language translator. If you're using gcc then the switch is replaced by a computed jump (a gcc language extension). On my AMD64/2800 time for creating 500,000 threads and sending each a message is 2 seconds, most of the time probably being consumed by calls to malloc, so the real thread creation and context switch rate is probably greater than Meg/sec order .. just a tad faster than Linux. Both MLton and Haskell also support this style of threading with high thread counts and switch rates (although the underlying technology is different).
http://felix.sf.net/
to provide user space threading. The main difference is that all the 'C tricks' are generated automatically by the language translator. If you're using gcc then the switch is replaced by a computed jump (a gcc language extension). On my AMD64/2800 time for creating 500,000 threads and sending each a message is 2 seconds, most of the time probably being consumed by calls to malloc, so the real thread creation and context switch rate is probably greater than Meg/sec order
