APM Support can only provide limited and general guidance on Agent load testing. Instead seek guidance in the APM Development Community Group.
We are seeing an issue with the performance of our IIS Sharepoint application when we run load test of 30K+ users when CA APM is instrumented. The symptoms include worker threads being maxed out as well at CPU topping out resulting in a failed test.
When we remove CA APM from the servers and perform the same load test the results are acceptable.
What is the level of overhead we should be expecting when CA APM is instrumented?
This was tested with
- an APM 10.5.1 EM
- an APM 10.3 agent
But can apply to any release.
What sort of load impact that the Sharepoint extension should have? It should be low impact around 5-15% of the baseline