I have not tried this yet, but Devel::AutoProfile looks promising.

From the documentation:
... You can supply a callback which will be called at END time. This code reference will be passed a hash containing all the caller information in the form of a hash. Your callback routine can the do whatever it wishes with this information.

So, my suggestion would be to fix up the callback so that it writes to different places for each forked child.

In reply to Re: Profiling forking code? by Anonymous Monk
in thread Profiling forking code? by Jeppe

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