Hi, Am 11.07.2013 11:36, schrieb Zhanghaoyu (A): > I met similar problem to these, while performing live migration or > save-restore test on the kvm platform (qemu:1.4.0, host:suse11sp2, > guest:suse11sp2), running tele-communication software suite in guest, > https://lists.gnu.org/archive/html/qemu-devel/2013-05/msg00098.html > http://comments.gmane.org/gmane.comp.emulators.kvm.devel/102506 > http://thread.gmane.org/gmane.comp.emulators.kvm.devel/100592 > https://bugzilla.kernel.org/show_bug.cgi?id=58771 > > After live migration or virsh restore [savefile], one process's CPU > utilization went up by about 30%, resulted in throughput degradation of this > process. > oprofile report on this process in guest, > pre live migration:
So far we've been unable to reproduce this with a pure qemu-kvm / qemu-system-x86_64 command line on several EPT machines, whereas for virsh it was reported as confirmed. Can you please share the resulting QEMU command line from libvirt logs or process list? Are both host and guest kernel at 3.0.80 (latest SLES updates)? Thanks, Andreas -- SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
