https://bugzilla.kernel.org/show_bug.cgi?id=196409 badOne (andizhigh@xxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |andizhigh@xxxxxx --- Comment #32 from badOne (andizhigh@xxxxxx) --- I also noticed heavy performance loss with my Ryzen 1700X and KVM. Disabling npt completely is no option either, it justs slows down the CPU a ton (which totally makes sense) My specs are: - Ryzen 1700X - ASUS Prime x370 Pro - GPU0: GTX 1050 (host) - GPU1: GTX 1070 (guest) I also experimented with CPU pinning, mounting a whole SSD instead of just using a virtual disk, trying different drivers, settings, etc. Nothing of the above seemed to change anything. With npt=1 some games are running fine (e.g. League of Legends), some are running ok (e.g. Path of Exile) and some are running extremely bad (e.g. Player Unknown's Battlegrounds, GTA 5, CS:GO, etc.) I looked into the code but I'm not able to dive into the project due to the lack of time. This is a major issue in my opinion and AMD + the guys from KVM should look into this together. Intel got it running, too. In addition with Xen it's working perfectly but I really don't like using Xen, I like KVM a lot more. Please fix this issue. If help is needed just contact me, I will when time allows it. -- You are receiving this mail because: You are watching the assignee of the bug.
