Your code (slightly modified for win32), doesn't appear to leak under AS811/5.8.6 or AS817/5.8.8. 

#!/usr/bin/perl
use strict;
use warnings;
use threads;
use Thread::Queue;
my $queue = Thread::Queue -> new;

threads -> create ("popper", $queue) -> detach for (1..10);

my $message="this is a line of test around the right size";

while (1) {
    $queue -> enqueue ($message) for (1..100);
    sleep 1 while $queue -> pending;
    system qq[tasklist /nh /fi "PID eq $$"];
}

sub popper {
    print "started a popper\n";
    my $queue = shift;
    while ($queue -> dequeue) {
        print ".";
    }
}
__END__
C:\test>junk5
started a popper
started a popper
started a popper
started a popper
started a popper
started a popper
started a popper
started a popper
started a popper
started a popper
perl.exe                    3128                         0      6,936 
+K
perl.exe                    3128                         0      6,944 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K
perl.exe                    3128                         0      6,948 
+K

[download]
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re: memory leak with Thread::Queue ? by BrowserUk
in thread memory leak with Thread::Queue ? by Random_Walk

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.