Darned if I can find any significant difference for as few as 3 numbers to add. Pretty consistently 4-5/100ths for both to start perl, count the numbers and return to the prompt

Interesting. Using precisely your 2 scripts, I see the withListUtil.pl taking about 60-70% longer.

$ time for i in {1..1000}; do perl withListUtil.pl > /dev/null; done

real    0m6.512s
user    0m3.820s
sys    0m2.867s
$ time for i in {1..1000}; do perl withoutListUtil.pl > /dev/null; don
+e

real    0m3.880s
user    0m1.538s
sys    0m2.497s

[download]

For the record, this is perl v5.20.3 with List::Util v1.42 on 64-bit Linux.

In reply to Re^5: Best way to sum an array? by hippo
in thread Best way to sum an array? by Anonymous Monk

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.