Nice! I hadn't seen that before. Thank you both.
On Sat, Mar 29, 2014 at 3:29 PM, Jonas <jonas.enl...@gmail.com> wrote: > You could give core.rrb-vector[1]. From the docs: > > The main API entry points are clojure.core.rrb-vector/catvec, > performing vector concatenation, and clojure.core.rrb-vector/subvec, which > produces a new vector containing the appropriate subrange of the input > vector (in contrast to clojure.core/subvec, which returns a view on the > input vector). > > [1] https://github.com/clojure/core.rrb-vector > > > On Saturday, March 29, 2014 8:42:25 PM UTC+2, Ryan Waters wrote: > >> If you do a (count @mem) it reports the length of the atom's vector isn't >> growing without bounds. It seems counterintuitive that the parts of the >> old vector wouldn't get garbage collected because the atom no longer points >> to them. But I guess I need to rtfd. >> >> Thank you. >> >> >> On Sat, Mar 29, 2014 at 10:07 AM, Aaron Cohen <aa...@assonance.org>wrote: >> >>> >>> >>> On Sat, Mar 29, 2014 at 10:09 AM, Ryan Waters <ryan....@gmail.com>wrote: >>> >>>> I have some code that blows up the heap and I'm not sure why. I've >>>> reduced it down to the following. >>>> >>>> I've tried to make sure the atom doesn't have boundless growth and I >>>> didn't think 'while' hangs on to the head of sequences so I'm embarrassed >>>> to say I'm stumped. >>>> >>>> >>>> (defn leaks-memory >>>> [] >>>> (let [mem (atom []) >>>> chunksize 1000 >>>> threshold 2000] >>>> (while true >>>> (swap! mem conj (rand-int 100)) >>>> >>>> ; every 'chunksize' item past 'threshold' >>>> (when (and (= 0 (mod (count @mem) chunksize)) >>>> (> (count @mem) threshold)) >>>> (swap! mem subvec chunksize))))) >>>> >>>> (doc subvec) >>> >>> Returns a persistent vector of the items in vector from >>> start (inclusive) to end (exclusive). If end is not supplied, >>> defaults to (count vector). This operation is O(1) and very fast, as >>> the resulting vector shares structure with the original and no >>> trimming is done. >>> >>> subvec is fast, but it's not saving you any memory. >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To post to this group, send email to clo...@googlegroups.com >>> >>> Note that posts from new members are moderated - please be patient with >>> your first post. >>> To unsubscribe from this group, send email to >>> clojure+u...@googlegroups.com >>> >>> For more options, visit this group at >>> http://groups.google.com/group/clojure?hl=en >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to clojure+u...@googlegroups.com. >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
