Is there a way to change the number of worker threads used by the Job System?

Is there a way to change the number of worker threads used by the Job System?

I want to see if my performance would be better if it didn't use all of the threads...

 

Don't know the answer, from the coding point of view. But if you on windows OS, in task manager you can try change in processes -> processor affinity, to desired cores. Not sure however, if this will work. But technically should.

 

Thanks! I tried that out and it looks like you can change the number of cores it can use, but Unity will still try to make the same number of worker threads...

Interestingly enough, I am trying to profile RaycastCommand jobs, and I somehow get better performance when I set the Affinity to only use 3 cores...

 

how many raycast rays you project?

 

Changing the processor affinity just changes which cores or how many cores the threads will run on. It doesn't affect the number of threads which is controlled by Unity and apparently not exposed.

Sam

 

From what you saying, I think exposing could be good, to do deep testings, on multi threading.