Introducing the F5 Application Study Tool (AST)
We've deployed AST and added one of the LAB LTMs to it. However, we have observed a spike in CPU utilization. We followed the recommendations to increase memory and resources for REST, as outlined in the AST documents, to improve performance. However, this did not make any difference.
- Michael_WaechterApr 17, 2025
Employee
schovva yes, that would be expected. F5 has three planes. The Data, Control, and Analysis. If you query a BIG-IP using AST, the control plane will be used. It will not impact the data plane, as the data plane has priority. If the polling interval is default (60 seconds) you can back that off to 90. However, if you are using other tools, such as SNMP and others to query the BIG-IP, it will consume the control plane. I’d highly recommend using AST in favor of other tools, and if something is missing that another tool is finding, please let us know.