Bug Burst 1.8.7 consumes insane amount of memory and super long compilation time

It seems like Burst 1.8.7 when compile dots project code, not only it consumes insane amount of memory but also stuck at completing domain for very long time like over 2 minutes and sometimes can reach near to 10 minutes. Sometimes it just stay there compile forever. Previously at 1.8.4, I believe it's only takes 30 seconds+ most of time and also not consume so much memory.

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If there is a clear before and after, please file a bug report

 

I still continued to see this problem. Not only each time changing code takes long time to compile, quite frequently editor will just forever stay there compiling and I need to just kill editor and reopen it again. Not really sure but it seems like editor memory usage keep growing when compiling code that sometimes will log out of memory error.

 

I have experienced similar problems.

Code (CSharp):

1. #if BURST_UTILITY_SAFETY_CHECKS
2.             if (length <= 0)
3.             {
4.                 Debug.LogError($"BurstAllocation<T> Alloc<T>: The length of BurstAllocation {length} is invalid.");
5.                 return default;
6.             }
7. #endif

In my case, I have my own safety checks using symbol definitions as described above, and when I disabled all of them, the compile time improved drastically from a couple of minutes to 10 seconds.

My guess at this point is that the string binary cache, etc., is being inline-expanded and copied in every calling method, which I suspect is causing the compile volume to expand.

However, I have no evidence.

 

Awesome. Btw for huge memory usage issue, is that caused by burst 1.8.7 too? For the mobile project I working on does not have hdrp level graphics that I believe should less than 5 GB but currently it consume memory until nearly 10 GB and editor keep freezing or crashing.