Decide to use or not to use non-mirror devices while taking a decision about RSS tuning

[strizhechenko]

case: eth0 is used for redirects. eth1, eth2 in mirror.

 27:   48654883   0   PCI-MSI-edge      eth0
 28: 3101331408   0   PCI-MSI-edge      eth1
 30:   95332395   0   PCI-MSI-edge      eth2

[strizhechenko]

Reiter thinks it will be a good idea.

[strizhechenko]

And possibly we need to use every queue interrupting rate. Hard one.