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| From: | Peter Lieven |
| Subject: | Re: [Qemu-devel] slow virtio network with vhost=on and multiple cores |
| Date: | Mon, 25 Mar 2013 14:34:57 +0100 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130308 Thunderbird/17.0.4 |
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
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