Intfiltr.exe - Windows 2000 Resource Kit Utility

IntFiltr is a command-line tool used on multiprocessor systems to affinitize interrupts of disk or network adapters to one or more processors. Affinitizing interrupts to a processor can improve system performance by improving processor cache locality. Using IntFiltr, you can direct a device's interrupts to a specific set of processors. In a computer with multiple processors, Microsoft® Windows® 2000 sets (by default) the interrupt controller to direct a device's interrupts at any available processor. This means an interrupt will be serviced by the processor with the lowest priority, or IRQL