Re^2: Slow Regex - How to Optimize

[ikegami]

That's not true. m/.../ only recompiles if the contents of any interpolated variable has changed. Demo:

use re 'debug';

foreach (qw( abc abc def )) {
   print("==============================\n");
   print("$_\n");
   print("\n");
   /$_/;
}

Update: Oops, I didn't notice you reversed the loops in addition to moving the regexp.