etwas mehr gegoogle bringt noch mehr licht ins dunkle 
Zitat
Fast timers waste performance
Executing interrupts also uses some execution resources so having more interrupts per second should make your computer run a little bit slower. I tested this theory by writing a program that spins in a busy loop and reports every second on how quickly it’s getting work done. While this program was running I would change the timer resolution and see whether its throughput was affected.
It was affected. A lot.
quelle: http://randomascii.wordpress.c…olution-megawatts-wasted/