More Info: Accurate Timing and Interrupts

Real-time processes and threads running on the RTOS virtual machine need access to high-speed interval timers for accurate, low-drift time measurements and for generating exact periodic intervals to insure precise control of real-time systems. x86 APIC uniprocessor systems and multi-processor systems, the vast majority of embedded and desktop Windows platforms built today, are excellent candidates. The accuracy and drift of the timer elements in x86 APIC systems is very good.