Performance Scaling Factor for Multi-Instance Capability
The maximum throughput (connections, VPN sessions, and TLS proxy sessions) for a platform is calculated for a native instance’s use of memory and CPU (and this value is shown in show resource usage ). If you use multiple instances, then you need to calculate the throughput based on the percentage of CPU cores that you assign to the instance. For example, if you use a container instance with 50% of the cores, then you should initially calculate 50% of the throughput. Moreover, the throughput available to a container instance may be less than that available to a native instance.
For detailed instructions on calculating the throughput for instances, see https://www.cisco.com/c/en/us/products/collateral/security/firewalls/white-paper-c11-744750.html.