Many users ask for hardware and software recommendations for the Controller host in order to set up and deploy AppDynamics. The following information is specific to versions 4.4 and higher.
Please keep in mind that every deployment is unique and that your specific configuration can affect the resources available to your individual scenario. Always test the performance of your system in a staging environment before deploying live.
One of the most critical factors in a machine's ability to support the performance requirements of a Controller is the machine's disk I/O performance. There are many storage configuration options with different latency characteristics.