Bug ID 686614: kswapd is taking 99% of CPU in Guest

Last Modified: Jan 20, 2023

Bug Tracker

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

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,

Opened: Oct 02, 2017
Severity: 3-Major


The kernel daemon kswapd is taking 99% of CPU in Guest.


High CPU usage.


Guests with very low amounts of memory in the guest's kernel normal zone.


On the vCMP host, reduce the memory given to the guest by using the resource provisioning page of the GUI to set the Management module to medium (or large). Note: Adjusting the Management module will cause all guests to restart.

Fix Information


Behavior Change