SMT故障，但是跑分會增加

[經過測試
VirtualBox、VMware Workstation 都無法安裝WinXP系統]

已有苦主...
https://www.mobile01.com/topicdetai...f=296&t=5086563

虛擬化功能還是再等等吧!

目前看到是WIN10使用VM有問題
但還沒看到WIN7系統使用者
掛VM的問題
比較想知道WIN7和WIN10
這兩個系統掛VM能不能正常工作

　
http://www.xfastest.com/thread-184300-1-1.html
　
　
　

https://www.ptt.cc/bbs/PC_Shopping/...0976.A.B98.html
Windows 7處理Ryzen SMT的執行緒才是對的 在Win 10把ryzen視為16個實體核心, 就把兩個執行緒在低執行緒負載時推給一個核心

這就相當於50%劣化了

好比R7選手跑200公尺 vs I7選手跑100公尺

AMD不認為Windows 10的執行緒調度有問題

Thread Scheduling
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.

As an extension of this investigation, we have also reviewed topology logs generated by the Sysinternals Coreinfo utility. We have determined that an outdated version of the application was responsible for originating the incorrect topology data that has been widely reported in the media. Coreinfo v3.31 (or later) will produce the correct results.

Finally, we have reviewed the limited available evidence concerning performance deltas between Windows® 7 and Windows® 10 on the AMD Ryzen™ CPU. We do not believe there is an issue with scheduling differences between the two versions of Windows. Any differences in performance can be more likely attributed to software architecture differences between these OSes.

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.

Above all, we would like to thank the community for their efforts to understand the Ryzen processor and reporting their findings. The software/hardware relationship is a complex one, with additional layers of nuance when preexisting software is exposed to an all-new architecture. We are already finding many small changes that can improve the Ryzen performance in certain applications, and we are optimistic that these will result in beneficial optimizations for current and future applications.

AMD：Ryzen完美支持Win10/Win7 超线程没毛病！

執行緒調度沒有問題
那就是核心辨認錯誤而已
給微軟的修正大概就是讓win10真正的認得新硬體.....吧(?)

現在AMD建議大家在Windows 10系統中把電源計畫改成【高性能模式】
這樣可以讓Ryzen處理器工作在最佳性能狀態。