Bridge Zero Copy Transmit

Zero copy transmit mode is effective on large packet sizes. It typically reduces the host CPU overhead by up to 15% when transmitting large packets between a guest network and an external network, without affecting throughput.

Source: Red Hat - Network Tuning Techniques

# /etc/modprobe.d/vhost-net.conf
+ options vhost_net	experimental_zcopytx=1

Revision #1
Created 25 March 2021 15:44:20 by dustin@swigg.net
Updated 2 April 2021 14:03:54 by dustin@swigg.net