CRC-32c from levelDB measure

unsigned int crc;
  int SIZE=1000*1000;
  char *bigbuf;
  bigbuf = (char*)malloc(SIZE);
  for (int i = 0; i < SIZE; i++)
    bigbuf[i] = rand() % 256;
  long long timeStart,timeEnd;
  __asm {
       rdtsc
       mov dword ptr timeStart, eax
       mov dword ptr timeStart+4, edx
  }
  crc = Value(bigbuf, SIZE);
  __asm {
       rdtsc
       mov dword ptr timeEnd, eax
       mov dword ptr timeEnd+4, edx
  }
  printf("time = %f %d",double(timeEnd-timeStart-96)/SIZE,crc);//96 for Intel Celeron,11 for Athlon
  free(bigbuf);//3.4 ticks/byte on Celeron