Processor affinity takes advantage of the fact that remnants of a process that was run on a given processor may remain in that processor's state (for example, data in the cache memory) after another process was run on that processor. Scheduling a CPU-intensive process that has few interrupts to execute on the same processor may improve its performance by reducing degrading events such as cache misses, but may slow down ordinary programs because they would need to wait for that CPU to become available again. A practical example of processor affinity is executing multiple instances of a non-threaded application, such as some graphics-rendering software.