Thank you very much indeed! On 05/08/2012 11:14 PM, Andy Fingerhut wrote: > I've added some discussion about this behavior in an example for > clojure.core/future on ClojureDocs.org here: > > http://clojuredocs.org/clojure_core/clojure.core/future > > Since people often come across this behavior when using pmap or > clojure.java.shell/sh, which are implemented using Clojure futures, I've > added examples to those two functions that recommend reading the examples for > future. > > Andy > > On May 8, 2012, at 11:18 AM, Andy Fingerhut wrote: > >> Not desired, but currently normal behavior. >> >> This happens whenever certain concurrency features of Clojure are used, >> creating other threads, and they take a while for them to be cleaned up on >> exit. Besides pmap, futures and a few other Clojure functions cause this. >> You can work around it if you call (shutdown-agents) before the end of your >> program. >> >> http://dev.clojure.org/jira/browse/CLJ-124 >> >> Andy >> >> >> On May 7, 2012, at 3:16 PM, Muharem Hrnjadovic wrote: >> >>> Hello there! >>> >>> I only started learning Clojure today, so please forgive me if this is >>> a stupid question or something.. >>> >>> I am experimenting with Clojure's pmap operator as shown in the source >>> here: >>> >>> https://github.com/freizeit/exercises/blob/master/cj-a-store-credit/clojure/ex1.clj >>> >>> With line 14 (the exit() call) in place the program takes a second to >>> run: >>> >>> $ time clojure -m ex1 /etc/motd >>> #<LinkedBlockingQueue [110, 60]> /etc/motd >>> >>> real 0m1.013s >>> user 0m1.284s >>> sys 0m0.032s >>> >>> With line 14 commented out or removed the program prints this part >>> immediately: >>> >>> $ time clojure -m ex1 /etc/motd >>> #<LinkedBlockingQueue [110, 60]> /etc/motd >>> >>> *but* the rest comes a minute later: >>> >>> real 1m0.997s >>> user 0m1.336s >>> sys 0m0.080s >>> >>> Is this normal/desired behaviour? If not, can somebody please explain >>> why this is happening? Thanks! >>> >>> FWIW, I am observing this with Clojure 1.3.0 on debian (LMDE [1]). >>> >>> [1] http://www.linuxmint.com/download_lmde.php
Best regards/Mit freundlichen Grüßen -- Muharem Hrnjadovic <m...@foldr3.com> Public key id : B2BBFCFC Key fingerprint : A5A3 CC67 2B87 D641 103F 5602 219F 6B60 B2BB FCFC
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