I agree that the burn-with-futures code looks not right:
(defn burn-via-futures [n]
(print n " burns via futures: ")
(time (doall (pmap deref (map (fn [_] (future (burn)))
(range n))))))
should probably be something like:
(defn burn-via-futures [n]
(print n " burns via futures: ")
(time (dorun (map deref (dorun (map (fn [_] (future (burn)))
(range n))))))
Otherwise, your pmap is throttling the creation and execution of the
futures. (It may be that the throttling behavior of the pmap is irrelevant
or possibly even helpful in this particular code, but it seems like you
really want to test how the system handles 48 futures that are created all
at once).
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