4.cpp

#include <iostream>
#include <stdio.h>
#include <math.h>

//---------- MEGA PROFILER ----------

unsigned long long __time1, __time2, __dt, __min_dt, __time_total;

#define TEST_HEAD_EX(REPEAT_TIMES)\
    __min_dt = 0xffffffff;\
    __time_total = 0;\
    for (int __i = 0; __i < REPEAT_TIMES; ++__i)\
    {\

#define TEST_START_EX \
        asm volatile (\
            "lfence;"\
            "rdtsc;"\
            "movl %%eax, __time1;"\
            "movl %%edx, __time1+4;"\
            "lfence;"               \
            :\
            :\
            :"edx", "eax"\
            );\

#define TEST_FIN_EX(OVERHEAD, MIN, TOTAL)\
        asm volatile (\
            "lfence;"\
            "rdtsc;"\
            "movl %%eax, __time2;"\
            "movl %%edx, __time2+4;" \
            :\
            :\
            :"edx", "eax"\
            );\
        __dt = __time2 - __time1 - OVERHEAD;\
        __time_total += __dt;\
        if (__dt < __min_dt) __min_dt = __dt;\
    }\
    MIN = __min_dt;\
    TOTAL = __time_total;\

//--------------------