April 24, 20242 yr I created a Virtual machine on my unraid with a windows 11 ISO. But it seems that my CPU clock speed is stuck at 0.81 GHz, because of that, the overall VM is running incredibally slow, and has 100% utilization Is there any way to fix this? Unraid Dashboard - Intel® N100 @ 2871 MHz VM Settings - Logical CPUs All ticked CPU 0 - CPU 3 CPU Mode - Host Passthrough Initial Memory & Max Memory - 8192 MB Machine - i440fx-7.1 BIOS - OVMF TPM HYPER-V - Yes Graphics Card - Virtual, VNC
April 24, 20242 yr 7 hours ago, luisp23 said: VM Settings - Logical CPUs All ticked CPU 0 - CPU 3 Don't do that. You need to leave resources available for the host (Unraid) to emulate the motherboard and other I/O. At the very least leave CPU 0 available for Unraid. Since you only have 4 threads, I'd only use CPU2 and CPU3 for the VM, maybe try with only the last thread for the VM and leave the other three for the host. 7 hours ago, luisp23 said: Initial Memory & Max Memory - 8192 MB That may also be too much, depending on how much RAM the system has. If the physical box has 32GB, 8 for the VM should be fine. If it has 16 or less, reduce the VM to 4096. The more resources you tie to the VM, the slower the host is going to run, which in turn slows the VM way down. Give the VM the absolute minimum and add a little at a time until performance doesn't increase.
August 9, 20241 yr Same issue over here. I tried multiple options: - Use all 4 cores - use one 3,2,1 core - Switch from passrthough to emulated QEMU Nothing works! Btw. I got the N100, 16 GB RAM and Win Server 2k22. Got anyone an idea how to fix it?
April 14, 20251 yr Same problem. I had Win11 native install but the CPU didn't behave right, kept going to 0.81Ghz under load. Switched to Linux, it runs it 3Ghz. But the VM of Win11 runs at 0.81Ghz. It's just a garbage processor the N100. I tried to get help from Microsoft and Intel and they just brush it off like they think I'm crazy, yet when I do Google searches I find others having problems with the N100. It is simply garbage for Windows anyway, native or emulated apparently.
April 14, 20251 yr BTW. I still have the issue and couldn't figure out a solution. Hopefully someone will and let us know here? We can't be the only once, there might be other issues with other systems beside unraid.
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