The answer to the literal question in your title is: if you need to ask, you shouldn't be using perl. * Taking into account the example in your post, you should probably use an array or hash lookup instead if you have a large (for some value of large) amount of tests: 

my @lookup = (
  sub { 
     # condition 0
  },
  sub { 
     # condition 1
  },
  sub { 
     # condition 2
  },
  ... 
);
$lookup[$condition]->();

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*) update: what I meant is; if the speed difference is relevant to your application you should be using a faster language - C for example.
"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re: Regarding speed: Is elsif or just if faster? by Joost
in thread Regarding speed: Is elsif or just if faster? by Spidy

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