EPICS Process Database
Process Block execution time varies from block type to block type
AI on a 68060 is ~18,000/second (50% idle)
AI on a 68040 is ~6,000/second (50% idle)
Fastest periodic scan rate is dependent on vxWorks clock tick - 60 Hz
Interrupt scanning is limited by the CPU bandwidth (interrupt delay ~33usec)
Name resolution - 10,000/second - runs at the lowest priority
2,500 Process blocks use around 1 Megabyte of memory
Support to particular physical I/O is distinct from process logic - ASCII device type