Gnome-shell high cpu usage in boxes

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I have this problem with both Fedora Workstation 37 and 38 Beta when running in Gnome Boxes on a Fedora Workstation 37 host. The cpu utilization for gnome-shell, as displayed by System Monitor in the boxes, is about 50% even when the only thing running is System Monitor.

The host has 20GB of memory and 8 cores. I created each box with 6GB memory and 40GB storage. Everything else is as defaulted by Gnome Boxes.

Please advise what I have done wrong.

2

VM extremely slow with AMD Ryzen 1st series - #4 by vgaetera

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QEMU: Checking for hardware virtualization : PASS
QEMU: Checking if device /dev/kvm exists : PASS
QEMU: Checking if device /dev/kvm is accessible : PASS
QEMU: Checking if device /dev/vhost-net exists : PASS
QEMU: Checking if device /dev/net/tun exists : PASS
QEMU: Checking for cgroup ‘cpu’ controller support : PASS
QEMU: Checking for cgroup ‘cpuacct’ controller support : PASS
QEMU: Checking for cgroup ‘cpuset’ controller support : PASS
QEMU: Checking for cgroup ‘memory’ controller support : PASS
QEMU: Checking for cgroup ‘devices’ controller support : PASS
QEMU: Checking for cgroup ‘blkio’ controller support : PASS
QEMU: Checking for device assignment IOMMU support : PASS
QEMU: Checking if IOMMU is enabled by kernel : WARN (IOMMU appears to be disabled in kernel. Add intel_iommu=on to kernel cmdline arguments)
QEMU: Checking for secure guest support : WARN (Unknown if this platform has Secure Guest support)
LXC: Checking for Linux >= 2.6.26 : PASS
LXC: Checking for namespace ipc : PASS
LXC: Checking for namespace mnt : PASS
LXC: Checking for namespace pid : PASS
LXC: Checking for namespace uts : PASS
LXC: Checking for namespace net : PASS
LXC: Checking for namespace user : PASS
LXC: Checking for cgroup ‘cpu’ controller support : PASS
LXC: Checking for cgroup ‘cpuacct’ controller support : PASS
LXC: Checking for cgroup ‘cpuset’ controller support : PASS
LXC: Checking for cgroup ‘memory’ controller support : PASS
LXC: Checking for cgroup ‘devices’ controller support : PASS
LXC: Checking for cgroup ‘freezer’ controller support : FAIL (Enable ‘freezer’ in kernel Kconfig file or mount/enable cgroup controller in your system)
LXC: Checking for cgroup ‘blkio’ controller support : PASS
LXC: Checking if device /sys/fs/fuse/connections exists : PASS
• The CPU is capable of virtualization: yes
• The KVM module is loaded: yes
• Libvirt KVM guest available: yes
• Boxes storage pool available: no
Could not get “gnome-boxes” storage pool information from libvirt. Make sure “virsh -c qemu:///session pool-dumpxml gnome-boxes” is working.
• The SELinux context is default: no
Your SELinux context looks incorrect, you can try to fix it by running:
restorecon -r /root/.config/gnome-boxes /root/.local/share/gnome-boxes /root/.cache/gnome-boxes

Report bugs to http://gitlab.gnome.org/gnome/gnome-boxes/issues.
Boxes home page: https://wiki.gnome.org/Apps/Boxes.

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