I know that Rakudo isn't well tuned for performance right now, but this is still probably worth noting because it's such a specific difference between two similar ways of doing one task.
The recent thread about "..." and ".." had me doing some testing and I noticed that ".." seems to be radically faster at loop iteration. For example: $ time ./perl6 -e 'for 1...1000 -> $i { 1; }; say "Done"' Done real 0m6.688s user 0m6.400s sys 0m0.290s $ time ./perl6 -e 'for 1..1000 -> $i { 1; }; say "Done"' Done real 0m2.114s user 0m1.870s sys 0m0.200s -- Aaron Sherman Email or GTalk: a...@ajs.com http://www.ajs.com/~ajs