The sample code is fairly quick to run.
I can confirm that the code below grows memory use in task manager after each run without releasing after a couple of minutes idle. it does not "leak" with JVERSION Engine: j803/2014-10-19-11:11:11 Library: 8.04.15 Qt IDE: 1.4.10/5.4.2 Platform: Win 64 ----- Original Message ----- From: 'Pascal Jasmin' via Beta <[email protected]> To: Beta Forum <[email protected]> Sent: Friday, December 9, 2016 9:53 AM Subject: [Jbeta] possible memory leak j805 part 2 of adventofcode day 9, took over 1 hour to run, and in the end was left with 2gb+ memory use by J. following was in a file and loaded, though an echo lines just called f2 on a variable holding input. Perhaps this is faster on earlier versions of J? issues that might cause a leak: I am reassigning y, but I am also recursing inside a loop. I'm not positive this code creates a leak. I will rerun it on my machine too. I may have done something unrelated (or a different attempt) to consume memory. JVERSION Engine: j805/j64/windows Beta-12: commercial/2016-09-30T15:50:47 Library: 8.05.09 Qt IDE: 1.5.2/5.6.2 Platform: Win 64 f2 =: 3 : 0 o =. 0 while. (# y) > e =. ')' i.~ y do. b =. '(' i:~ e {. y i =. ". every 'x' cut y{~ b + >:i. <:e -b o =. o + b + f2 i expand (>:e )}. y y =. ({.i) }. (>:e) }. y end. o + #y ) expand =: */@:[ $ {.@[ {. ] echo f2 '(27x12)(20x12)(13x14)(7x10)(1x12)A' echo f2 '(25x3)(3x3)ABC(2x3)XY(5x2)PQRSTX(18x9)(3x2)TWO(5x7)SEVEN' ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
