Chromatic,

A tracing & optimizing JIT that is Perl-specific, such as what would be created by RPython, should provide some amount of "magical fairy dust" in that it should make Perl 5 run faster. Please correct me on this particular point.

"As fast as C" may be a bit tongue-in-cheek, we can stick with my original phrasing of "within an order of magnitude as fast as optimized C". This should have a very specific meaning to anyone running performance benchmarks. Write some code in C, then write the same code in Perl, then run them for comparison.

I fully agree about the issue of making sure a VM is a suitable target for a particular language.

RPython would generate a Perl-specific JIT. No multi-octopus wrestling match there.

Flavio's Perlito generates Javascript to run in a Javascript VM, but from what little I understand about Javascript it is a high-enough-level language to emulate Perl 5 to some degree. (I've had complex code translated from Perl to Javascript in the past.) Perlito doesn't look like much of a multi-octopus wrestling match between Perl as an input language and the Javascript VM, but I could be wrong.

Ingy's C'Dent and Perl5i are supposed to be generating XS code, so no new VM there, and no multi-octopus wrestling match that I can see.

Reini's B system seems closely tied to the existing Perl 5 interpreter VM, so no multi-octopus wrestling match there, either.

So what am I actually wrong about?

Thanks,
~ Will

In reply to Re^2: Perl 5 Optimizing Compiler, Part 2 by Will_the_Chill
in thread Perl 5 Optimizing Compiler, Part 2 by Will_the_Chill

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.