RHEL半虚拟化网络性能问题

RHEL半虚拟化网络性能问题，要把GSO, TSO, and LRO disable掉:

Network performance issues If you experience low performance with the para-virtualized network drivers, verify the setting for the GSO, TSO, and LRO features on the host system. The para-virtualized network drivers require that the GSO, TSO and LRO options are disabled for optimal performance.

Verify the status of the GSO, TSO and LRO settings with the following command on the host (replacing interface with the network interface used by the guest):

# ethtool -k interface

Disable the GSO, TSO and LRO options with the following commands on the host:

# ethtool -K interface gso off# ethtool -K interface tso off# ethtool -K interface lro off