SCR/SCR3.1/devoir27/ex2/vcachetest.c

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2023-12-10 15:48:26 +01:00
#include <stdint.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <x86intrin.h>
#include <signal.h>
#include "helpers.c"
#include "helpers.h"
#define PLSIZE 63
struct lst {
struct lst * next;
long int payload[PLSIZE];
} l;
struct lst * mkws(int size)
{
int i,j;
struct lst * ws0,*ws;
if (size == 0)
return NULL;
srand(time(0));
ws = calloc(1,sizeof(struct lst));
ws->next = NULL;
for (i=0;i<PLSIZE;i++)
ws->payload[i]=(rand())%2;
for (j=1;j<size;j++) {
ws0=ws;
ws = calloc(1,sizeof(struct lst));
if (ws==NULL) {
fprintf(stderr,"Can't add element...\n");
exit(1);
}
for (i=0;i<PLSIZE;i++)
ws->payload[i]=(rand())%2;
ws->next = ws0;
}
return ws;
}
long int z = 0;
void kill_prg(int){
printf("Nombre de tests effectués: %ld\n", z);
}
int main(int argc, char ** argv)
{
struct lst * ws, * ws0;
long long int start, end, dif;
long int i, x, size, it;
if (argc != 3) {
printf("Usage: %s <list size> <iterations>\n",argv[0]);
exit(1);
}
set_signal_handler(SIGTSTP, &kill_prg);
size=strtol(argv[1],NULL,0);
ws = mkws(size);
if (ws == NULL) {
printf("NIL list created...\n");
exit(1);
}
it = strtol(argv[2],NULL,0);
start = __rdtsc();
for (i = 0; i < it; i++) {
ws0 = ws;
while (ws0 != NULL) {
x = ws0->payload[3];
x++;
z++;
ws0 = ws0->next;
}
}
end = __rdtsc();
dif = end - start;
printf("Cycles/element = %lf\n", ((double) dif)/((double) size*it));
exit(0);
}