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use Benchmark; @chars = ('x', ' '); ... push (@array, $element); return (@array); }
rand_split: 43 wallclock secs (40.37 usr + 0.01 sys = 40.38 CPU) @ 12 +3.83/s (n=5000) split: 4 wallclock secs ( 3.73 usr + 0.00 sys = 3.73 CPU) @ 13 +42.28/s (n=5000)