On 23/10/15 10:42, Joe Jin wrote:
> Currently xen vnic allowed to create lots of queues by set module param
> max_queues(both netback and netfront), when queues number larger than
> cpus number, it does not help for performance but need more cpu time.
>
> This patchset limit netback and netfront max queues number to online
> cpus number.
>
> Joe Jin (2):
>   xen-netback: limit xen vif max queues number to online cpus
>   xen-netfront: limit vnic max_queues number to online cpus

Please do not exclude the possibility for making crazy numbers of queues.

I can appreciate the want to prevent people shooting themselves in the
foot, but being able oversubscribe the number of queues is important for
performance testing.

~Andrew

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