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Copy pathmyTesterTrash.c~
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myTesterTrash.c~
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#include "stdio.h"
#include "stdlib.h"
#include "myAllocator.h"
#include "sys/time.h"
#include <sys/resource.h>
#include <unistd.h>
double diffTimeval(struct timeval *t1, struct timeval *t2) {
double d = (t1->tv_sec - t2->tv_sec) + (1.0e-6 * (t1->tv_usec - t2->tv_usec));
return d;
}
void getutime(struct timeval *t)
{
struct rusage usage;
getrusage(RUSAGE_SELF, &usage);
*t = usage.ru_utime;
}
int main()
{
void *p1, *p2, *p3, *p4,*p5;
arenaCheck();
p1 = malloc(95304);
arenaCheck();
p2 = malloc(381200);
arenaCheck();
p3 = malloc(285904);
arenaCheck();
// p4 = malloc(286080);
p4 = malloc(286104);
arenaCheck();
printBlockInfo();
printf("P1:[%llx] P2:[%llx] P3:[%llx] P4:[%llx]\n\n", (long long)p1, (long long)p2, (long long)p3, (long long)p4);
arenaCheck();
free(p2);
printBlockInfo();
arenaCheck();
p5= resizeRegion(p4, 300000);
printBlockInfo();
arenaCheck();
printf("P1:[%llx] P2:[%llx] P3:[%llx] P4:[%llx] P5:[%llx]\n\n", (long long)p1, (long long)p2, (long long)p3, (long long)p4, (long long)p5);
arenaCheck();
free(p4);
arenaCheck();
free(p3);
arenaCheck();
free(p5);
arenaCheck();
free(p1);
arenaCheck();
{ /* measure time for 10000 mallocs */
struct timeval t1, t2;
int i;
getutime(&t1);
// can only reach 43690 because (2^20)\(sizeof(prefix) + sizeof(suffix) + 8)
//where 8 is the size that is allocated for any value of 1-8
for(i = 0; i < 43690; i++)
if (malloc(4) == 0)
break;
getutime(&t2);
printf("%d malloc(4) required %f seconds\n", i, diffTimeval(&t2, &t1));
}
return 0;
}
/*
int main()
{
void *p1, *p2, *p3;
arenaCheck();
p1 = malloc(950);
arenaCheck();
printf("P1:[%llx] \n", (long long)p1);
free(p1);
arenaCheck(); // p1 = malloc(254);
printf("P1:[%llx] \n", (long long)p1);
p2 = malloc(25400);
arenaCheck();
p3 = malloc(254);
//printf("%llx %llx %llx\n", (long long)p1, (long long)p2, (long long)p3);
printf("P1:[%llx] P2:[%llx] P2:[%llx]\n", (long long)p1, (long long)p2, (long long)p3);
arenaCheck();
free(p2);
arenaCheck();
free(p3);
arenaCheck();
free(p1);
arenaCheck(); // p1 = malloc(254);
{ // measure time for 10000 mallocs
struct timeval t1, t2;
int i;
getutime(&t1);
for(i = 0; i < 10000; i++)
if (malloc(4) == 0)
break;
getutime(&t2);
printf("%d malloc(4) required %f seconds\n", i, diffTimeval(&t2, &t1));
}
return 0;
}
*/