Replacing the pause Assembly Instruction

Function of the pause instruction: provides a prompt for the processor to improve the spin-wait loop performance.

• Code on x86:

  inline void PauseCPU() { 
  __asm__ __volatile__("pause" : : : "memory"); 
  }

• Alternative for Kunpeng processors:

  inline void PauseCPU() { 
  __asm__ __volatile__("yield" : : : "memory"); 
  }