hi, we are using bonding interfaces and the the latest kernel solved the problem, live migration runs stable at full bandwidth. https://rhn.redhat.com/errata/RHBA-2014-0004.html -- ulrich On Sat, 2013-12-28 at 11:01 +0100, Ulrich Leodolter wrote: > hello, > > while upgrading a kvm virtualization cluster from c6.4 to c6.5 > and i am no longer able to control the migration speed. > > in c6.4 the default speed was the maximum bandwidth (1g in my case) > and the actual migration speed was about 100MB/s. > > now in c6.5 the actual migration speed dropped down to about > 25MB/s - 50MB/s, it varies and sometimes during migration of > huge machines (36GB) i was at 100MB/s, but only for seconds. > > i tried also to set speed using this command: > > virsh migrate-setspeed <domain> --bandwidth 1000 > > but it seems it has no affect, i remember in c6.3 the default > migration speed was 33% of total bandwidth and at that time > the above command worked and 100% were used during migration. > > can anyone confirm this ?? > > thanks > ulrich > > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > http://lists.centos.org/mailman/listinfo/centos-virt >