1. A method for managing resources of a processor device configured to control an automation installation, comprising: using at least one first operating system and at least one second operating system to operate the processor device, the at least one second operating system differing from the at least one first operating system and at least one of the at least one first operating system and the at least one second operating system is a real-time-based operating system; operating the at least one first operating system with at least one processor core of a plurality of processor cores of the processing device; operating the at least one second operating system with at least one other processor core of the plurality of processor cores of the processing device; displaying data characteristic of a resource requirement of at least one of the at least one first operating system and the at least one second operating system, the data including simultaneous multi-threading data and common cache usage data; freely selecting, by using a graphical tool, a first number of processor cores of the plurality of processor cores used to operate the at least one first operating system; and freely selecting, by using the graphical tool, a second number of processor cores of the plurality of processor cores used to operate the at least one second operating system; and wherein the processor cores of the real-time-based operating system are selected by using the graphical tool and on the basis of the displayed data, so that cache misses caused by at least one other of the operating systems are minimized for the real-time-based operating system.