Yeah it's gets tricky because each thread gets a copy of the parent at the time of creation, it's a Perl problem, not a c thread problem. That means a thread may have duplicated code from a previous thread in it, just sitting around keeping a refcount > 0. Hard to track down.

The only absolutely foolproof way of doing it, is to create all threads at the beginning of the script, then REUSE the threads, over and over. See Reusable threads demo for the basic idea.

Otherwise, you may be best just turning off the warning, and watch for weird glitches or memory gains as your script runs.

All I can say is good luck, because I have run into similar problems many times, and now immediately use sleeping reusable threads right from the start of design. I don't even consider detaching, as it almost always leads to memory gains unless you somehow reuse the thread's scalar namespace. Also spawning threads is pretty intensive, so you want to minimize it......reuse threads and join at exit.

I'm not really a human, but I play one on earth Remember How Lucky You Are

In reply to Re^3: cleanly exiting threads by zentara
in thread cleanly exiting threads by JoeKamel

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