Windows XP Priorities real- time high above below idle normal normal normal priority time-critical 31 15 15 15 15 15 highest 26 15 12 10 8 6 above normal 25 14 11 9 7 5 normal 24 13 10 8 6 4 below normal 23 12 9 7 5 3 lowest 22 11 心 6 4 2 idle 16 1 1 1 1Windows XP Priorities