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I am troubled by the size on disk of some of my .lvclass files. I have done the usual things like pruning up the mutation history, however there are still some things bugging me.

  1. What is NI.LVClass.FlattenedPrivateDataCTL and why is it so big? I have a class which just consists of a bunch of clusters (sure it gets a bit nested but nothing crazy) and this field is nearly 60k characters long
  2. What is NI.ClassItem.ConnectorPane" Type="Bin"> This field seems much bigger than I would expect, the data does not seem to match the name...There is one of these for each method VI and some of these can be 2k characters long.

Any ideas?

 

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It's binary encoded data, so it can get big. The FlattenedPrivateDataCTL is literally the private data control -- the .ctl file that defines the data. It includes everything that a separate .ctl file would save. The connector panes are the complete signature of the methods, including types, layout, requirements, inplaceness, and constantness.

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