代码

#include <cstdio>
#include <unistd.h>
static inline unsigned long long rdtsc_(void) { unsigned lo, hi; __asm__ __volatile__("rdtsc" : "=a"(lo), "=d"(hi)); return ((unsigned long long)hi << 32) | lo; }
static char pad[4128768];
int main(){
  long v = 1000;
  volatile char* p = pad;
  for (long i=0;i<v;i++) p[i*4096]=1;
  
  return 0;
}

评测结果