blob: 76defbe145f6ce0dd3b10f71eac0b76650e28acc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
extern void print_stats(int);
#define NUM_OF_GBYTES 8
int main(void)
{
char *p[NUM_OF_GBYTES];
int i;
for (i = 0; i < NUM_OF_GBYTES; i++) {
printf("allocating 1GB\n");
print_stats(0);
p[i] = malloc(1024 * 1024 * 1024);
print_stats(1);
printf(" malloc returned: %p\n", p[i]);
}
printf("\n");
for (i = 0; i < NUM_OF_GBYTES; i++) {
if (p[i]) {
printf("memsetting 1GB: %p\n", p[i]);
print_stats(0);
memset(p[i], 1, 1024 * 1024 * 1024);
print_stats(1);
}
}
printf("\n");
for (i = 0; i < NUM_OF_GBYTES; i++) {
if (p[i]) {
printf("free 1GB: %p\n", p[i]);
print_stats(0);
free(p[i]);
print_stats(1);
}
}
return 0;
}
|
