[issue15038] Optimize python Locks on Windows
Antoine Pitrou
report at bugs.python.org
Tue Jun 19 17:07:05 CEST 2012
Antoine Pitrou <pitrou at free.fr> added the comment:
> > The implementation for multiprocessing.Condition is virtually the same
> > as Listing 3 which the author says he thinks is "formally correct" but
> > with "a fundamental performance problem".
>
> To me, it seems similar to the last listing (under "The Sequel—NT and
> PThreads"): there's a separate semaphore per waiter, used to wake it up
> when signal() or broadcast() is called.
Ah, you said multiprocessing.Condition. Sorry. I was thinking about
threading.Condition.
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