It's already bad enough that the code being benchmark is in a sub. Adding another sub in the call chain hurts that much more. To remove the extra sub call, use 

        blokchop  => \&blokchop,
        orig      => \&orig,
        browserUK => \&browserUK,
        ikegami   => \&ikegami,

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In reply to Re^5: Speeding permutation counting by ikegami
in thread Speeding permutation counting by albert

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