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<div><br class="webkit-block-placeholder"></div><div>Hi All,</div><div><br class="webkit-block-placeholder"></div>I'm clearly not good at giving bug reports. This was on Linux, optimized.<div><br class="webkit-block-placeholder"></div><div>The good news is that I think I have a reproducer. I instantiate 25K rectilinear grids (each grid 3x3x3) and send them through a vtkVectorNorm and then take those outputs and send them through a vtkVectorNorm, and so on ten times.</div><div><br class="webkit-block-placeholder"></div><div>When I do this, the time to delete goes from 1s to 6s and then levels off at 6s. Also the time to calculate the norm appears to be increasing dramatically, which I am also observing in my program. See the last few "calculating norm" entries ... they have gone up from about 3-5s to 30s.</div><div><br class="webkit-block-placeholder"></div><div>Here's the results, using the vtkTimerLog:</div><div><div>Allocating initial, 0.920138 seconds</div><div>Calculating norm, 5.05535 seconds</div><div>Delete, 1.0108 seconds</div><div>Calculating norm, 3.96532 seconds</div><div>Delete, 1.96076 seconds</div><div>Calculating norm, 4.01928 seconds</div><div>Delete, 3.83726 seconds</div><div>Calculating norm, 7.39869 seconds</div><div>Delete, 3.68343 seconds</div><div>Calculating norm, 6.48079 seconds</div><div>Delete, 5.68573 seconds</div><div>Calculating norm, 13.278 seconds</div><div>Delete, 5.17787 seconds</div><div>Calculating norm, 10.486 seconds</div><div>Delete, 6.50975 seconds</div><div>Calculating norm, 20.208 seconds</div><div>Delete, 5.77193 seconds</div><div>Calculating norm, 15.6566 seconds</div><div>Delete, 7.14988 seconds</div><div>Calculating norm, 29.7289 seconds</div><div>Delete, 6.56824 seconds</div></div><div><br class="webkit-block-placeholder"></div><div>And the program is attached. Any words of wisdom from the VTK gurus?</div><div><br class="webkit-block-placeholder"></div><div>Thanks!!</div><div>Hank</div><div><br class="webkit-block-placeholder"></div><div><span></span></div></body></html>