A computer system for a motor vehicle, comprising: - a processor device with multiple real processor cores realized by circuitry, - multiple virtual machines, each of which respectively comprises at least one virtual processor core for executing software programs, such that a predetermined, fixed number of virtual processor cores is provided within the virtual machine, wherein a total number of the virtual processor cores is greater than a total number of the real processor cores, - a hypervisor device, which is configured to operate the virtual machines on the processor device at the same time and hereto to exclusively associate the real processor cores with the virtual machines according to a predetermined association scheme, such that, in each virtual machine, a computing power of the at least one virtual processor core thereof is realized by the at least one real processor core, which is exclusively associated with the respective virtual machine, wherein an association of the real processor cores with the virtual processor cores is effected based on an association scheme, wherein a hypervisor scheduler is provided in the hypervisor device, by which at least one further association scheme, which provides a further exclusive association of the real processor cores with the virtual machines, is provided in addition to the association scheme, and the hypervisor scheduler is configured to switch between the association schemes depending on a demand signal in the operation of the computer system, wherein each association scheme specifies, which real processor core is associated with which virtual machine for operating the virtual processor cores thereof, and a circuit and/or software is provided in the hypervisor scheduler, which adapts an allocation of the real processor cores to the virtual machines in the operation depending on a demand of computing power, characterized in that one of the virtual machines comprises a display control program, which is configured to adjust an image content on a display device based on graphics data, wherein application programs are provided in the virtual machines for generating the graphics data, and the display control program is configured to ascertain a respective involvement proportion of the application programs in the image content based on a predetermined proportion calculation rule and to allocate the computing power of the real processor cores to the virtual machines according to the respective ascertained involvement proportion by means of the demand signal. - a processor device with multiple real processor cores realized by circuitry, - multiple virtual machines, each of which respectively comprises at least one virtual processor core for executing software programs, such that a predetermined, fixed number of virtual processor cores is provided within the virtual machine, wherein a total number of the virtual processor cores is greater than a total number of the real processor cores, - a hypervisor device, which is configured to operate the virtual machines on the processor device at the same time and hereto to exclusively associate the real processor cores with the virtual machines according to a predetermined association scheme, such that, in each virtual machine, a computing power of the at least one virtual processor core thereof is realized by the at least one real processor core, which is exclusively associated with the respective virtual machine, wherein an association of the real processor cores with the virtual processor cores is effected based on an association scheme, wherein a hypervisor scheduler is provided in the hypervisor device, by which at least one further association scheme, which provides a further exclusive association of the real processor cores with the virtual machines, is provided in addition to the association scheme, and the hypervisor scheduler is configured to switch between the association schemes depending on a demand signal in the operation of the computer system, wherein each association scheme specifies, which real processor core is associated with which virtual machine for operating the virtual processor cores thereof, and a circuit and/or software is provided in the hypervisor scheduler, which adapts an allocation of the real processor cores to the virtual machines in the operation depending on a demand of computing power, characterized in that one of the virtual machines comprises a display control program, which is configured to adjust an image content on a display device based on graphics data, wherein application programs are provided in the virtual machines for generating the graphics data, and the display control program is configured to ascertain a respective involvement proportion of the application programs in the image content based on a predetermined proportion calculation rule and to allocate the computing power of the real processor cores to the virtual machines according to the respective ascertained involvement proportion by means of the demand signal.