Incorrect CPU data in QEMU/KVM setup
Incorrect CPU data in QEMU/KVM setup
I set up Windows 10 on KVM via virt-manager with host OS Arch Linux and integrated graphics pass-through. It worked initially, but the CPU performance is poor and it incorrectly reports the CPU model as AMD Opteron G5. In reality, I have an A10-7850K on a Kaveri architecture. The guest sees only one core, even though I selected four. The GPU looks close to native speed, but the CPU is extremely slow compared to VirtualBox or VMware. Please help with this confusing situation. My English is not great.
My comes up as opteron too, I never looked into it. It's likely the settings you have it as 4 sockets, not 4 cores. If this is correct it should not be difficult to correct it. If you are using windows Home it won't work on more than one socket, I dont know if pro or ent has a limit.
Windows 10 Home is being detected as a virtual machine in Task Manager under CPU. It lists one socket, one virtual processor, and the VM status is enabled.
theres your problem. change your settings so its 4 cores not 4 sockets. The windows Home license and technology restrictions dont give you much to play with, thats why its cheaper.
It uses four cores instead of four sockets. It was set by default, but I adjusted it to one socket with four cores, while keeping four cores active continuously. The issue remains—CPU usage stays near 100% and the system runs choppy.
For Windows... start here: https://www.linux-kvm.org/page/WindowsGu...ad_Drivers and https://fedoraproject.org/wiki/Windows_Virtio_Drivers
I set up most of them, but none relate to the CPU. What they list are: Spoiler NetKVM/: Virtio Network driver viostor/: Virtio Block driver vioscsi/: Virtio SCSI driver viorng/: Virtio RNG driver vioser/: Virtio serial driver Balloon/: Virtio Memory Balloon driver qxl/: QXL graphics driver for Windows 7 and earlier (build virtio-win-0.1.103-1 and later) qxldod/: QXL graphics driver for Windows 8 and later (build virtio-win-0.1.103-2 and later) pvpanic/: QEMU pvpanic device driver (build virtio-win-0.1.103-2 and later) guest-agent/: QEMU Guest Agent 32bit and 64bit MSI installers qemupciserial/: QEMU PCI serial device driver *.vfd: VFD floppy images for use during installation of Windows XP