As the nytprof files are binary, I can't upload them here. Instead I've made an effort to make the next batch of benchmarks more useful: http://drop.io/perl_performance/asset/arrays-zip

I've taken your suggestions and implemented them. Also, there's only two variants this time, as one of them shows the performance issue and the other one has a tiny change which resolves the issue to an extent.

Sidenote: Are you available on IRC? This stuff is very time-consuming and I'm way out of my depth here, so the only thing i literally can do is provide info in the hopes it helps others, but with the delays involved in the form of communication here i'm getting incredibly frustrated.

In reply to Re^10: Performance oddity when splitting a huge file into an AoA by Xenofur
in thread Performance oddity when splitting a huge file into an AoA by Xenofur

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.