To conclude, I agree that "is_contained()" consumes more time, but I suggest that we first assert that the first, much simpler function is "optimal"

Suit yourself, but to me your statement is a clear example of misplaced priorities, bordering on irrational obsession. The few changes I suggested save an amount of time equal to the total consumed by that first function.

Since I'm new to perl optimization...

... or to optimization in general? If you want to focus on optimizing that first function, you should be coding it in C (and that'll be a waste of time if you don't fix the second function, and/or move stuff from inner to outer loops, or just work out a better approach from first principles).

UPDATE: BTW, did you happen to try moving the logic of that first function into the caller? (ie. do that stuff in-line in "scenario()" rather than as a sub call to "gene_to_legal_range") -- that might trim your 16 sec. test case down to 13 (about 20%, which is respectable).

In reply to Re^7: Some code optimization by graff
in thread Some code optimization by roibrodo

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.