https://metacpan.org/pod/Time::HiRes#setitimer-which-floating_seconds-interval_floating_seconds says
Use of interval timers may interfere with alarm(), sleep(), and usleep(). In standard-speak the "interaction is unspecified", which means that anything may happen: it may work, it may not.

In reply to Re^3: WWW::Curl pause conflict by Anonymous Monk
in thread WWW::Curl pause conflict by krmx

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