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use Benchmark qw(:all) ; ... @awd = keys %unique; }, });
Benchmark: running jc, mk for at least 3 CPU seconds... jc: 3 wallclock secs ( 3.14 usr + 0.00 sys = 3.14 CPU) @ 53 +5.67/s (n=20522) ... Rate jc mk jc 6536/s -- -56% mk 14937/s 129% --