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Easy way to roughly get VI running time +/- a few ms LV2013: Timing Probe.vi

The easiest way by far is to use the [un]Flatten to XML primitives, which can take objects and variants as arguments, and convert the XML to/from JSON. with simple regex/search/replace. Why they didn't make the native JSON ones like the XML is beyond me

Right, now that I turn to it, I see it. Harder, but perhaps not insurmountable: if I get it correctly, the showstopper is that there is no way to recast the saved class data back into classes by merit of some autodynamical mechanism; the hard way should be to include enough class-discriminating information in the JSON, and supplement a lot of ad hoc fragile code to place it back where needed. Anyway, tedious enough to wonder if it is really preferrable to my original xml dump. and me too.