It works (as expected): before: 4 0 17337 263 20 0 163108 4240 - Sl ? 0:47 \_ /usr/bin/qemu-img create -f qcow2 -o preallocation=falloc,compat=1.1,lazy_refcounts /var/lib/libvirt/images/ubuntu20.04.qcow2 26214400K
Now: 4 0 43901 263 20 0 163108 5436 - Sl ? 0:00 \_ /usr/bin/qemu-img create -f qcow2 -o preallocation=metadata,compat=1.1,lazy_refcounts /var/lib/libvirt/images/ubuntu20.04.qcow2 26214400K Even without the change to libvirt it works (as that is a valid fix, but for a different use case). And it is going much faster is on e.g. the ZFS based setup that was mentioned. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847105 Title: very slow disk creation, snapshotting To manage notifications about this bug go to: https://bugs.launchpad.net/virt-manager/+bug/1847105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
