Will this work on a Raspberry PI or arm64 architectures

[acadadev]

Hello,
Will this work on arm64 architectures like RPI?
Best Regards.
C.A.

[MengRao]

I'm not quite familiar with arm64 arch, but if it has any low-overhead timecounter function(in nanosecond precision) similar to rdtsc in x86, you can simply change TSCNS::rdtsc to use it and that's all you need to do. Note that the timecounter value need to be consistent across all the cpu cores.

[ktprime]

  static inline int64_t rdtsc() {
#ifdef _MSC_VER
    return __rdtsc();
#elif defined(__i386__) || defined(__x86_64__) || defined(__amd64__)
    return __builtin_ia32_rdtsc();
#elif defined(__aarch64__)
    uint64_t cval;
    asm volatile("mrs %0, cntvct_el0" : "=r"(cval));
    return cval;
#else
    return rdsysns();
#endif
  }

seem works on arm64