So how could I detach the threads?

I showed you exactly how to do it above? Change threads->detach; to $thr->detach;.

detach() is an instance method. That is, you need to call it upon the thread handle you wish to detach. You are currently calling it as a class method, which makes no sense, and if warnings were enabled, would (probably) raise an error.

Does your OS have a tool that will show you how many threads are running when the stall occurs? Also, are your child processes being cleaned up or are you creating lots of zombies?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

In reply to Re^3: Completely Random Stall by BrowserUk
in thread Completely Random Stall by expresspotato

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