Bug ID 988165: VMware CPU reservation is now enforced.

Last Modified: Feb 10, 2023

Bug Tracker

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

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1

Fixed In:
17.0.0, 16.1.2.2, 15.1.5.1

Opened: Jan 29, 2021
Severity: 3-Major

Symptoms

CPU reservation is not enabled which can result in insufficient CPU resource for virtual edition guest.

Impact

Performance may be lower than expected particularly if ESXi is over subscribed and traffic volume is high.

Conditions

BIG-IP Virtual Edition running in VMware.

Workaround

Manually enforce the 2GHz per core rule when provisioning VMware instances to ensure that your VMware hosts are not oversubscribed.

Fix Information

The VMware CPU reservation of 2GHz per core is now automatically enabled in the OVF file. The CPU reservation can be up to 100 percent of the defined virtual machine hardware. For example, if the hypervisor has 2.0 GHz cores, and the VE is set to 4 cores, you will see 4 x 2.0 GHz reserved for 8GHz (or 8000 MHz).

Behavior Change