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DOC/WIP: performance tips for large displays #862

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@ZLLentz ZLLentz commented May 13, 2022

I think completing this would be useful.

During the EPICS codeathon (may 2022) we identified some performance scaling issues with large displays- I'd like to investigate further what kinds of tips or tools we can include to help these displays perform better.

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codecov-commenter commented May 13, 2022

Codecov Report

Merging #862 (4e3f4c7) into master (25ad437) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #862      +/-   ##
==========================================
- Coverage   61.97%   61.97%   -0.01%     
==========================================
  Files          98       98              
  Lines       12008    12005       -3     
==========================================
- Hits         7442     7440       -2     
+ Misses       4566     4565       -1     
Impacted Files Coverage Δ
pydm/widgets/multi_axis_viewbox.py 28.94% <0.00%> (-5.20%) ⬇️
pydm/widgets/base.py 90.68% <0.00%> (+0.20%) ⬆️

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ZLLentz commented May 16, 2022

Some other ideas of performance tips to include:

  • fast-running slots
  • using signals as callbacks
  • Qt.QueuedConnection
  • How to set up custom PyDMChannel instances

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ZLLentz commented May 17, 2022

Another idea:

  • How to use profiler outputs

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