Bug ID 482434: Possible performance degradation in AWS cloud

Last Modified: Nov 07, 2022

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

Known Affected Versions:
11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.10, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5, 11.5.2

Opened: Oct 02, 2014

Severity: 3-Major


Throughput and new connections per/sec might be up to 4 times slower in AWS for SR-IOV enabled instances.


Performance is 3-to-4 times slower than the license limit. Slow throuhgput and new connections per/second


This might occur when a BIG-IP virtual server is configured with a Standard profile.


If throughput performance is 3x-4x times slower than license limit for virtual servers with 'Standard' profile, consider disabling interruptible sleep. To do so, use the following commands to: 1. set the appropriate DB variable to 0 (zero), and 2. restart tmm: 1. setdb Scheduler.UnicAsleepRxLimit.LTM 0. 2. bigstart restart tmm.

Fix Information

Throughput and new connections per/sec are now comparable in AWS for SR-IOV enabled instances and in other instances.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips