Bug ID 1001069: VE CPU usage higher after upgrade, given same throughput

Last Modified: Sep 14, 2023

Affected Product(s):
BIG-IP MA-VE(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 16.0.0,, 16.0.1,,, 16.1.0, 16.1.1, 16.1.2,,, 16.1.3,,,,,

Fixed In:
17.1.0, 16.1.4, 15.1.9

Opened: Mar 10, 2021

Severity: 3-Major


Significant increase in CPU usage post-upgrade.


Significant increase in CPU usage, leading to potential degradation or disruption of traffic.


- Upgrading from version 13.x to a later version. - Configured BIG-IP Virtual Edition (VE) that uses the sock driver.


Create the following overrides: - In '/config/tmm_init.tcl' add or append the following: ndal mtu 1500 1137:0043 device driver vendor_dev 1137:0043 xnet - In '/config/xnet_init.tcl' add or append the following: device driver vendor_dev 1137:0043 dpdk Note: These overrides must be re-applied every time an upgrade is done.

Fix Information

Changed configuration to use DPDK-XNet as the default driver for Cisco eNIC.

Behavior Change

TMM now uses XNet and DPDK drivers as the default when operating with Cisco eNIC cards.

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips