Interesting. There's also that anecdote about the heap manager using a spin count of 4000. I wasn't aware this happened by default (I didn't see any mention o

Interesting. There's also that anecdote about the heap manager using a spin count of 4000. I wasn't aware this happened by default (I didn't see any mention of this in InitializeCriticalSection). I guess it's all down to the probability of contention vs. the amount of time the mutex is held.