I poked around in the threading code and managed to get all tests
passing with thread pooling enabled.
Enable it yourself to test things out:
-J-Djruby.thread.pooling=true
Thread pooling has been shown to speed up Rails in some cases,
especially when net/protocol is involved. It also makes spinning up new
threads almost as cheap as green threads if the pool can reuse them
(i.e. the first time for n concurrent threads is normal native thread
cost, but holding at or under n while spinning up new threads is cheap).
I'd like people to try it out and report any issues they find. I would
like this to be officially supported for 1.1, since it helps JRuby
better fit many use cases that expect lightweight green threads.
- Charlie
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