Unless you're printing out megabytes of data, it's not likely to make a difference.

However, if you disable buffering with $| and print a number of small lines, it will be slower than printing most of a document at once. This, of course, depends on the buffer size of your OS and on such things as packet size. Your web server may also intercept data instead of allowing you to write to a raw socket.

This is one of the last things I would worry about optimizing. You're more likely to get better speed out of using Fast CGI or mod_perl than you are switching from printing a list to printing a here-doc.

In reply to Re: CGI Benchmarks by chromatic
in thread CGI Benchmarks by skeight

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.