Thanks both. On some further work, I now have another question (should really have added to the original question): While I call 
$pm->finish;

[download]
the callback "run_on_finish" seems to be called much later. Is there some way to get Parallel::ForkManager to call run_on_finish very soon after or as soon as finish is called? Thank you once again

In reply to Re: Should I call waitpid when using Parallel::ForkManager to fork in an infinite loop? by unlinker
in thread Should I call waitpid when using Parallel::ForkManager to fork in an infinite loop? by unlinker

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