Your questions are over my head. I can't give meaningful answers. :-) QEMU was started with *qemu-system-x86_64* -m 4096 -smp 2 *-cpu host -enable-kvm* \ -usb -usbdevice tablet \ -net user -net nic \ -hda kubuntu2604.qcow2 where I'm assuming, "-cpu host" means QEMU figures it out (Haswell, i3-4170). On 2026-05-25 14:26, William Muriithi wrote:
How is KVM set?
- You using virtio drivers? - You passing through the CPU or emulating it? - Does your virtual machine topology match that of the actual CPU? - If you just using 2 virtual CPU, just pin it to one physical CPU. If now, and your CPU is NUMA aware, the Linux scheduler will bouch it around the two CPU and your cache help will be muted.
Regards, William
On Mon, 25 May 2026 at 12:53, William Park via Talk <talk@lists.gtalug.org> wrote:
I'm running Kubuntu 26.04 inside QEMU and VirtualBox. Now, QEMU (with KVM enabled, --enable-kvm) is supposedly be faster, but strangely it seems slower to me. I am compiling kernel now, but that takes 2 hours on 2 cpu, which mean I have to wait 4 hours to find out.
Is there a quick way to test cpu/ram/disk, by "quick", I mean 5min max?
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