Looks like Perl is faster in this case. 
#!/usr/bin/perl
use warnings;
use strict;
use Benchmark; 

#Outputs:
#Benchmark: timing 1000000 iterations of c-loop, perl-loop...
# c-loop:  5 wallclock secs ( 5.64 usr +  0.02 sys =  5.66 CPU) 
            @ 176678.45/s (n=1000000)
# perl-loop:  3 wallclock secs ( 3.58 usr +  0.01 sys =  3.59 CPU) 
           @ 278551.53/s (n=1000000)


timethese(1000000, {

'c-loop' => sub {

 for (my $i = 0; $i <= 100; $i += 5) {
   #print("$i ");
  }

}, 

'perl-loop' => sub {

  for (0..20){
    # print 5 * $_." ";
  }
 
 },

});

[download]
I'm not really a human, but I play one on earth Remember How Lucky You Are

In reply to Re^2: C-style for loop by zentara
in thread C-style for loop by mandog

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.