You can read a lot about the motivations for the creation of that warning (certainly in the p5p archive but also other places). It has more to do with many people having a difficult time using threads than with any specific problems with Perl's implementations of threads. Well, except for the heavy per-thread memory cost that is specific to Perl's implementation (which is the part you misread as saying that Perl threads don't use OS threads).

It is meant to discourage casual use of threads and has more social motivations than technical. Have fun fighting with p5p on what to replace it with. I really do wish you luck (sincerely), but I am not interested in participating in that. I try to stick to activities where my strengths and weaknesses are more beneficial. The warning should certainly be made less likely to mislead.

- tye        


In reply to Re^2: threads->create hangs (warning) by tye
in thread threads->create hangs by duane_ellis2

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.