note BrowserUk <p>I find it very puzzling that you reference [mod://Thread::Queue] in your comments: <blockquote><i> <code> # make sure there undefs are enqueued to the workQueue so that child threads can # complete the process rather than being blocked on Thread::Queue's dequeue </code> </i></blockquote> <P>but seem to have forgotten to include it in your code. Especially as it would exactly address the apparent problem with your "experiment". <P>Consistently reinforcing your "I'm very new to PERL threading.." by upcasing Perl is a really cheesy touch. <div class="pmsig"><div class="pmsig-171588"> <hr /> <font size=1 > <div>With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'</div> <div>Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.</div> <div>"Science is about questioning the status quo. Questioning authority". </div> <div>In the absence of evidence, opinion is indistinguishable from prejudice. <p align=right>[http://www.theregister.co.uk/2011/11/29/sas_versus_world_programming/|The start of some sanity?]</p></div> </font> </div></div> 971468 971468