We have investigated reports alleging incorrect thread scheduling on the AMD Ryzen™ processor. Based on our findings, AMD believes that the Windows® 10 thread scheduler is operating properly for “Zen,” and we do not presently believe there is an issue with the scheduler adversely utilizing the logical and physical configurations of the architecture.Según amd está todo bien en cuanto a scheduling, y las mejoras -que ellos esperan- vendrán por optimización de los desarrolladores específicamente para Ryzen. (deja vu)Going forward, our analysis highlights that there are many applications that already make good use of the cores and threads in Ryzen, and there are other applications that can better utilize the topology and capabilities of our new CPU with some targeted optimizations. These opportunities are already being actively worked via the AMD Ryzen™ dev kit program that has sampled 300+ systems worldwide.
https://community.amd.com/community/gaming/blog/2017/03/13/amd-ryzen-community-update?sf62109582=1