I can reproduce with: x86_64-softmmu/qemu-system-x86_64 -hda ~/images/linux.img -snapshot -m 4G -monitor stdio -enable-kvm QEMU 0.12.50 monitor - type 'help' for more information (qemu) migrate_set_speed 1G (qemu) migrate -d "exec:dd of=foo.img"
On: commit d9b73e47a3d596c5b33802597ec5bd91ef3348e2 Author: Corentin Chary <corenti...@iksaif.net> Date: Tue Jun 1 23:05:44 2010 +0200 vnc: add missing target for vnc-encodings-*.o Even though the rate limit is set at 1G, we're not getting more than 1-2MB/s of migration traffic. ** Changed in: qemu Status: New => Confirmed ** Changed in: qemu Assignee: (unassigned) => Anthony Liguori (anthony-codemonkey) -- virsh save is very slow https://bugs.launchpad.net/bugs/524447 You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. Status in QEMU: Confirmed Status in “qemu-kvm” package in Ubuntu: Confirmed Bug description: As reported here: http://www.redhat.com/archives/libvir-list/2009-December/msg00203.html "virsh save" is very slow - it writes the image at around 1MB/sec on my test system. (I think I saw a bug report for this issue on Fedora's bugzilla, but I can't find it now...) Confirmed under Karmic.