Bug ID 435217: Single hyper-thread VCMP guests mostly unmanageable under max load

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
11.4.1

Fixed In:
11.5.0

Opened: Oct 24, 2013
Severity: 3-Major

Symptoms

When a single hyper-thread VCMP guest's data-plane is at maximum utilization, control-plane functions become very non-responsive. Timeouts when using the TMUI, and delays greater than a minute for operations that normally take seconds may be observed.

Impact

The system becomes very difficult to manage.

Conditions

This occurs when a VCMP guest is provisioned with only one hyper-thread, and the data-plane is at full utilization.

Workaround

None

Fix Information

Single hyper-thread VCMP guest's are now manageable under maximum data-plane utilization.

Behavior Change