i40e-zc drivers: load is not distributed between all cores

[AlexeyRN]

Hello! I have 40Gbit network using i40e-zc drivers. But when I use zsend i get only 13Gbit because zsend uses only one core, who load increase to 100%. How can I distribute load between all cores to achieve 40Gbit?

# ./zsend -i zc:eth7
=========================
Absolute Stats: 251'538'863 pkts - 21'129'264'492 bytes
Actual Stats: 19'362'324.31 pps - 13.01 Gbps [1626604392 bytes / 1.0 sec]
=========================

[cardigliano]

@AlexeyRN you can enable RSS and run a traffic generator per TX queue (i.e. zsend -i zc:eth7@ -g )

[AlexeyRN]

Where and how can I enable RSS? Thank you!

[cardigliano]

ethtool -L eth7 combined 4 where 4 is the number of RSS queues

[AlexeyRN]

Thank you!