A continuous high level of CPU usage can be an indicator that it might be necessary to scale up/out the system.
For the CPU load the same arguments as for the heap usage regarding peaks are true. So if a high CPU load is detected (> 60% for more than one hour), first it should be analyzed, if short peaks or exceptional use cases are the reason. If this is the case no direct reaction is needed.
If the defined limit for CPU usage is exceeded, there are two possible measures:
Extend the number of CPU’s available for the runnable.
Scale up by increasing the resources of the current node, for example, assigning more CPU cores to the virtual machine or scale out by adding a new node/runnable of the same type.
For advanced ARIS server installations Software AG strongly recommends that you request an installation service by Global Consulting Services. You can order that service from your Software AG sales representative.