Bug ID 710666: VE with interface(s) marked down may report high cpu usage

Last Modified: Jul 12, 2023

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,, 14.0.0,,,,,, 14.0.1,

Fixed In:

Opened: Mar 17, 2018

Severity: 3-Major


The "tmm" process may appear to be running at 90% or above in linux cpu reporting utilities such as "top" or "ps", even if the system is not handling a large amount of traffic. In this case, "tmsh show sys tmm-info" continues to report tmm's cpu usage accurately.


tmm consumes cpu cycles even when idle. This may impact other guests running on the same hardware if the hypervisor has oversubscribed its cpu resources.


- BIG-IP Virtual Edition - One or more interfaces configured and used in the BIG-IP configuration is marked down


Disable any interface that is currently marked down. For example: tmsh modify net interface 1.1 disabled and then restart tmm: bigstart restart tmm

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips