Method and apparatus for controlling a memory access in a computer system with two execution units little sterns

Method and apparatus for controlling a memory access in a computer system having at least two execution units, wherein a cache memory area per execution unit, in particular a cache memory area is provided, and changeover means and comparison means are provided, a changeover being made between a performance mode and a comparison mode, characterized in that in the performance mode accessing each execution unit on the respectively assigned buffer memory area in the comparison mode and access both execution units access a predefinable buffer memory area, wherein the intermediate storage areas are configurable.