vtkxxxxReader memory management

Thanks for sharing the project!

I can not reproduce your issue. The memory consumption looks stable:

Start RSS = 37232
End RSS = 39064
Start RSS = 39064
End RSS = 39064
Start RSS = 39064
End RSS = 39064
Start RSS = 39064
End RSS = 39064
Start RSS = 39064
End RSS = 39064

What version of VTK are you using?