Here's my benchmark of a couple of PP and several I::C versions based (loosely) on the ideas posted in the thread along with my chosen I::C version which gains a little performance by using chars for the counting as 127 chars is a reasonable maximum length. And gains a little more by restricting the alphabet to printable ascii chars only, which is also reasonable for the envisaged use. The benchmark results are:

       Rate    PP   trg    mb    Pb    JF    me
PP  0.168/s    --  -92%  -96%  -97%  -97%  -97%
trg  2.14/s 1170%    --  -55%  -58%  -59%  -68%
mb   4.72/s 2703%  121%    --   -8%  -10%  -30%
Pb   5.13/s 2948%  140%    9%    --   -3%  -23%
JF   5.27/s 3031%  147%   12%    3%    --  -21%
me   6.70/s 3881%  213%   42%   31%   27%    --

[download]

And the code:

<Reveal this spoiler or all in this thread>
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re: The sum of absolute differences in the counts of chars in two strings.(Results) by BrowserUk
in thread The sum of absolute differences in the counts of chars in two strings. by BrowserUk

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.