As Jenda mentions below, XML::Twig is the wrong solution for this problem (update: when exceptional performance is an issue -- or if you just mean memory consumption, that was my own fault, easily corrected by mirod below). I pretty much knew as much before I started, but it was an easily available solution from this thread, so I tried it.

In reply to Re^7: Removing XML comments with regex by runrig
in thread Removing XML comments with regex by gasho

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