I must admit that my eyes popped somewhat at "I have re-written your code to be much more efficient." in that node. However I was too busy to bother benchmarking it and the dispatch table is much cleaner than the original code in any case so I let it go.
I'm glad to see that you've followed up with some actual testing and the result doesn't much surprise me. Another thing to consider is that if at the time of coding you know the likely hit rate for each of the tests, the chained if/elsif can be much more efficient by testing the most likely hits first. That is still nasty code to write, test and maintain compared with the dispatch table, but stooping to "assembly language" techniques has to be a win sometimes. :)
DWIM is Perl's answer to Gödel
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||