5.5. Batching Network Packets
In configurations with a long transmission path, batching packets before submitting them to the kernel may improve cache utilization.
To configure the maximum number of packets that can be batched where N is the maximum number of packets to batch:
ethtool -C $tap rx-framesN
To provide support for
taprx batching for type='bridge' or type='network' interfaces, add a snippet similar to the following to the domain XML file.
... <devices> <interface type='network'> <source network='default'/> <target dev='vnet0'/> <coalesce> <rx> <frames max='7'/> </rx> </coalesce> </interface> </devices>