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use Benchmark qw/cmpthese/; my $append = 'B' x 50; cmpthese (100, { ... substr 16.5/s -- -35% -37% dot 25.5/s 55% -- -2% dot_eq 26.0/s 58% 2% --
use Benchmark qw/cmpthese/; my $append = 'B' x 256; cmpthese (100, { ... substr 6.99/s -- -35% -49% dot_eq 10.7/s 53% -- -21% dot 13.6/s 95% 27% --