OK. I noticed that VTK has release flag settings which keep some stuff in memory. -- View this message in context: http://vtk.1045678.n5.nabble.com/Memory-leak-of-vtkMultiBlockPlot3D-reader-and-dataset-on-Ubuntu-tp5735900p5736035.html Sent from the VTK - Users mailing list archive at Nabble.com.