The Processor object type includes as instances all processors on the computer. A processor is the part in the computer that performs arithmetic and logical computations, and initiates operations on peripherals. It executes (runs) programs on the computer.
Privileged Time is the percentage of processor time spent in Privileged Mode in non-Idle threads. The Windows NT service layer, the Executive routines, and the Windows NT Kernel execute in Privileged Mode. Device drivers for most devices other than graphics adapters and printers also execute in Privileged Mode. Unlike some early operating systems, Windows NT uses process boundaries for subsystem protection in addition to the traditional protection of User and Privileged modes. These subsystem processes provide additional protection. Therefore, some work done by Windows NT on behalf of your application may appear in other subsystem processes in addition to the Privileged Time in your process.
Index: 144 Default Scale: 1
Counter Type: PERF_100NSEC_TIMER Counter Size: 8 bytes
Processor Time is expressed as a percentage of the elapsed time that a processor is busy executing a non-Idle thread. It can be viewed as the fraction of the time spent doing useful work. Each processor is assigned an Idle thread in the Idle process which consumes those unproductive processor cycles not used by any other threads.
Index: 006 Default Scale: 1
Counter Type: PERF_100NSEC_TIMER_INV Counter Size: 8 bytes
User Time is the percentage of processor time spent in User Mode in non-Idle threads. All application code and subsystem code execute in User Mode. The graphics engine, graphics device drivers, printer device drivers, and the window manager also execute in User Mode. Code executing in User Mode cannot damage the integrity of the Windows NT Executive, Kernel, and device drivers. Unlike some early operating systems, Windows NT uses process boundaries for subsystem protection in addition to the traditional protection of User and Privileged modes. These subsystem processes provide additional protection. Therefore, some work done by Windows NT on behalf of your application may appear in other subsystem processes in addition to the Privileged Time in your process.
Index: 142 Default Scale: 1
Counter Type: PERF_100NSEC_TIMER Counter Size: 8 bytes
Interrupts/sec is the number of device interrupts the processor is experiencing. A device interrupts the processor when it has completed a task or when it otherwise requires attention. Normal thread execution is suspended during interrupts. An interrupt may cause the processor to switch to another, higher priority thread. Clock interrupts are frequent and periodic and create a background of interrupt activity.
Index: 148 Default Scale: 0.01
Counter Type: PERF_COUNTER_COUNTER Counter Size: 4 bytes