Running that exact script on my computer gives me...

            Rate plain_perl        moo
plain_perl 376/s         --       -62%
moo        991/s       164%         --

The difference may be the presence or absence of Class::XSAccessor which I've just noticed Moo uses if it's available, but falls back to pure Perl if it's not.

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

In reply to Re^8: Unusual sorting requirements; comparing three implementations. by tobyink
in thread Unusual sorting requirements; comparing three implementations. by tobyink

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