For tiny sets, N log N is so similar to N that Schwartzian is pretty worthless. I changed
my @old = ("10.5 AA", "10.6 AA", "9 AC", "2 BB");
to
my @old = ("10.5 AA", "10.6 AA", "9 AC", "2 BB") x 100;
(and lowered the number of iterations to 2000) and yours took 1.5 times longer (25s vs 10s). Whether it's over-engineered or not depends on the input set.

In reply to Re^3: Numeric Sort for Stringified Value (How to Avoid Warning) (Use the ST) by ikegami
in thread Numeric Sort for Stringified Value (How to Avoid Warning) by neversaint

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