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Pthread_make_periodic_np() V.S. interrupt-driven scheduling

Pthread_make_periodic_np() V.S. interrupt-driven scheduling

Hi, all

I need to schedule executing of a task periodically at a frequency around
1kHz. Following possibilities seem to be freasible:

1) to use pthread_make_periodic_np()
2) write a ISR to serve periodic hardware interrupts

I wonder which one is preferred by your RTL-veterans.

Thanks!

James