I guess that multithreading isn't the solution because the parse of my file tree used to take ~200 seconds, and with 4 worker threads, it now takes ~690 seconds.

Care to show us the code and see if we cannot improve that for you?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Re^3: Thread local variables in Thread::Pool::Simple by BrowserUk
in thread Thread local variables in Thread::Pool::Simple by Annirak

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