my @sharedArray = map 0+$_, split ' ', $lineOfData;;

##</code><code>##

my @a = 1.. 1e6;;                          ## takes 62 MB.
printf "the number is: %d\n", $_ for @a;;  ## causes no memory growth
print  "the number is: $_\n"     for @a;;  ## Causes the memory to grow to 110MB.