6a05e5161b
Searching for a simulation state at a particular frame was implemented with a linear loop. The timeline did that for every visible frame, giving quadratic performance overall when zoomed out. Since the states are already assumed to be sorted by frame, we can use binary search instead giving logarithmic performance for each lookup instead. In the test file from #108097, instead of dropping to 20-30 FPS after about 4000 frames, I observed the original 70 FPS. Pull Request: https://projects.blender.org/blender/blender/pulls/109037
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