Advantages of a large number of threads cf other approaches?
Mon Feb 16 17:00:40 CET 2004
I was discussing Erlang with a colleague and little difficulty
convincing him either that its CSP approach was superior to trying to
manage a large number of threads using semaphores, or that Erlangs VM
threads scale better than antive threads on the OS's we're familiar
with. What I had a harder time doing was convincing him that using a
large number of threads was a best solution for any of the major
cases we discussed:
* Internet servers - why not use asynchronous sockets running in a
* Simulations - why use an object per thread rather than a "classic"
One answer is that CSP threads (at least in the first case) lead to a
simpler design and that Erlang itself has a host of features that
support highly reliable programs. But I'd appreciate suggestions
regarding other benefits, especially those arising from CSP itself.
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