Hi, On Thu 05 Aug 2010 15:42, Luca Saiu <posit...@gnu.org> writes:
> ;;; Why does this GCs after creating b? Try running this with > GC_PRINT_STATS=1, > ;;; or with GC_DONT_GC=1 if you want to see the memory use rise. > > (define size 100000) > (define times 100) > > (define b (make-bitvector size)) > > (do ((t 0 (1+ t))) > ((= t times) 'done) > (do ((i 0 (1+ i))) > ((= i size) 'done) > (bitvector-set! b i #t))) The toplevel references to bitvector-set! don't get cached, so the bitvector-set! gets looked up every time, and there is some unfortunate allocation in scm_from_locale_symboln. If you put it in a function, the variable gets cached, and there's no allocation. Andy -- http://wingolog.org/
