What did you try? How long did it take and how much do you need to speed it up? When you profiled it, where was the slowness?

Update: in case it's not clear, the order is:

  1. write some code that does the job
  2. If it's fast enough you're done
  3. If it's too slow, profile it to figure out where a fix is needed
  4. write unit tests to make sure your speed fix doesn't break the code!

It's easy to get into a funky "do nothing" state because you can't figure out the "best" way to do something. Don't. Just pick what seems the easiest option to write and go for it. If it does the job, great. If it doesn't, at least you have something to work with and understand the problem better.

Perl is the programming world's equivalent of English

In reply to Re: take 'n' array elements at a time by GrandFather
in thread take 'n' array elements at a time by fionbarr

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.