This is a Benchmark about the subroutines in Perl:
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use Benchmark qw(:all) ; sub calc { return($_[0]*$_[1]);} my %subs; $subs{'calc1'} = eval 'sub { return($_[0]*$_[1]);}'; $subs{'calc2'} = sub { return($_[0]*$_[1]);}; print $subs{'calc1'}->(1234,1234).$/; print $subs{'calc2'}->(1234,1234).$/; print calc(1234,1234).$/; cmpthese(-2, { 'normal' => sub {calc(1234,1234)}, 'comp' => sub {$subs{'calc1'}->(1234,1234);}, 'ref' => sub {$subs{'calc2'}->(1234,1234);}, }); |
Result:
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1522756 1522756 1522756 Rate ref comp normal ref 1920352/s -- -4% -17% comp 1996495/s 4% -- -14% normal 2313035/s 20% 16% -- |
We see the normal way is the best solution.
Appreciate the recommendation. Will try it out.