[CentOS-virt] 6.5 live migration speed
ulrich.leodolter at obvsg.at
Sat Dec 28 10:01:53 UTC 2013
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 ??
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