This just gets funnier and funnier.

These are the results from kenosis benchmark:

C:\test>1064178-b.pl
                 Rate     OPdiff hash_grep OPdiffModified OPdiff_undef
+ using_vec
OPdiff         90.9/s         --      -47%           -52%         -55%
+      -64%
hash_grep       170/s        87%        --           -10%         -17%
+      -33%
OPdiffModified  189/s       108%       11%             --          -7%
+      -26%
OPdiff_undef    204/s       124%       20%             8%           --
+      -20%
using_vec       254/s       180%       49%            35%          25%
+        --

[download]

And these from your benchmark:

C:\test>junk.pl
hash_grep:      *CMP::hash_grep
hash_key_diff:  *CMP::hash_key_diff
hash_values_diff:       *CMP::hash_values_diff
using_vec:      *CMP::using_vec

                     Rate   using_vec hash_values_diff hash_key_diff  
+ hash_grep
using_vec         69161/s          --             -81%          -84%  
+      -88%
hash_values_diff 363049/s        425%               --          -14%  
+      -39%
hash_key_diff    421810/s        510%              16%            --  
+      -29%
hash_grep        594454/s        760%              64%           41%  
+        --

[download]

Forget the order of the results, note that all your results are something like 2000 times faster despite that you're using pretty much the same sized arrays as kenosis. Do you have some magic touch that makes computers work so much harder for you?

Oh look and what your complicated way of building a coderefhash produces:

my $href = pckg_subs();
pp $href;

{
  hash_grep        => sub { "???" },
  hash_key_diff    => sub { "???" },
  hash_values_diff => sub { "???" },
  using_vec        => sub { "???" },
}

[download]

Like I said. Broken is just broken.

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^5: Best method to diff very large array efficiently by BrowserUk
in thread Best method to diff very large array efficiently by newbieperlperson

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.