ECS or Why Should I Bother Making My Game Efficient

[Arowx]

Also maybe you should know that 18.1’s job system does not use the Burst compiler coming out in 18.2…

Ultimately neither mono nor IL2CPP performance really matters. The compiler we expect all users to use for C# jobs is Burst. This will NOT be available in 18.1 but likely in 18.2. Burst itself does not know what builtin array is. Essentially burst is a compiler dedicated to the problem of making C# jobs and a specific subset of C# to get the absolute best performance you could hope for. For this reason we make the assumption that there are exactly no GC types in the type of code that burst executes. Hence everything is Native containers + structs. This is a part of what enables the 5x-10x speedups we are usually seeing in burst vs mono/il2cpp. Also we generally beat C++ performance by good margins with Burst already.

From Here: Job System not as fast as mine, why not?

Interesting post where developer compares Parallel processing with Unity Job version and finds the Job system to be twice as slow!