Poor performance for high number of timesteps

Hello! I am new to ParaView/Vtk and am looking for some guidance. Currently I am testing vtk-xmlUnstructuredGrids as a possible output format for a project. I tested the following sets in the paraview Render-View:

  • 7000 cells / 100 Time steps —> 25 Fps
  • 6 cells / 32 000 Time steps —> 2Fps

Is there an obvious reason for this performance drop? Should I use a different vtk File Format? Can I improve the ParaView performance apart from activating animation cache?

Thanks a lot in advance!

Hi @SchnFlo.

Welcome to the ParaView community!

Which version of ParaView and which operating system are you using?

Thank you for the fast reply!
I tested the set on two configurations :

  • Arch Linux (Workstation)

    • ParaView 5.11.2
    • Ryzen 1700x
    • AMD Radeon RX5700 XT (Mesa Drivers)
  • Windows 11(Mobile)

    • ParaView 5.12
    • Ryzen 4600H
    • AMD Radeon RX 640

The above mentioned benchmarks were created on the workstation. The poor performance can be seen on both configurations.

could you share that data ?

Of course! You can find the two data sets here.

I confirm that there is a significant performance difference caused by the number of timesteps.

FYI @nicolas.vuaille

@SchnFlo could you open an issue ?



FYI, I was also able to reproduce from paraview application, but not from pvpython. So it is more probably a GUI-related issue.

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Please post the link to the issue in git here. I will fund it.

git issue. Thank you!