Unity job system and burst minimalist sample (less than 200 rows code!) without ECS.
add / remove instance methods available.
Tested on Unity 2019.3.11f1, windows10 (RTX 2080 max-q).
TransformAccessArray - https://github.com/Unity-Technologies/UnityCsReference/blob/master/Runtime/Transform/ScriptBindings/TransformAccessArray.bindings.cs