Re: [PATCH 5/6] kvm: qemu: virtio-net: handle all tx in I/O thread without timer

David S. Ahern
2008-11-04T15:23:30Z

Mark McLoughlin wrote:

> Note also that when tuning for a specific workload, which CPU
> the I/O thread is pinned to is important.
>

Hi Mark:

Can you give an example of when that has a noticeable affect?

For example, if the guest handles network interrupts on vcpu0 and it is
pinned to pcpu0 where should the IO thread be pinned for best performance?

thanks,

david