Bug ID 1007629: APM policy configured with many ACL policies can create APM memory pressure

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP APM(all modules)

Known Affected Versions:, 14.1.4,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4, 16.0.0,, 16.0.1,,

Fixed In:
16.1.0,,, 13.1.5

Opened: Mar 30, 2021

Severity: 3-Major


High APM memory usage even in idle state when no traffic is flowing.


If idle state memory of APM is high then less memory is available for use during traffic flow and thereby can lead to OOM crashes and failover.


APM policies configured with resource assignment agents with ACL policies configured. The idle state memory usage will be proportional to the number of resource assignment agents and ACL policies configured



Fix Information

APM policy configured with many ACL policies no longer creates APM memory pressure

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips