On 18.03.2013 10:53, Michael S. Tsirkin wrote:
Do you see all interrupts going to the same CPU? If yes is irqbalance in guest running?
I had the same issue today. Problem is irqs are going to all vCPUs. If the smp_affinity is set to one CPU only performance is OK. irqbalance is running, but it doesn't matter.
Peter