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+--- Thread: Suggestion / Idea Per-frame GC Allocation in ObiPathSmoother.Decimate (/thread-3250.html)
Per-frame GC Allocation in ObiPathSmoother.Decimate - pdinklag - 28-12-2021
I am currently profiling my game, which uses ObiRope, in search of what appears to be a memory leak. I don't know yet whether it comes from Obi's Burst solver or not, but I assume so since it only appeared since using it and I will share details on that shall I find out more.
In any event, I noticed some sources of GC allocations that happen every frame and shouldn't be necessary. One has already been reported here and it affects ropes too: http://obi.virtualmethodstudio.com/forum/thread-3072.html
Another one is the bit array in ObiPathSmoother.Decimate. This can easily be eliminated by making it a member of the class and replace its construction with
Code:
decimateBitArray.Length = Mathf.Max(decimateBitArray.Length, input.Count);
decimateBitArray.SetAll(true);The loop at the end of the function must then be changed to run only up to input.Count rather than bitArray.Count.
It'd be nice to see this incorporated in a future update.
RE: Per-frame GC Allocation in ObiPathSmoother.Decimate - josemendez - 12-01-2022
Thanks a lot for the feedback! This will be incorporated into 6.3.1.