The Quiz on CPU 0: Playing Scheduler Wars with AMD’s Threadripper 2990WX

One of the telling conclusions from our original 32-core AMD Ryzen Threadripper 2990WX review was that because of the arrangement of cores and memory, performance in most applications did not scale from the 16-core, and in some cases regressed. Due to a serious of discussions, one potential culprit could be the fact that Windows scheduler seems to prioritize CPU 0 over everything else. We did some testing.