12345678910111213141516171819202122232425262728293031323334353637383940
// SPDX-License-Identifier: GPL-2.0 /* * Artificial memory access program for testing DAMON. * * Receives number of regions and size of each region from user. Allocate the * regions and repeatedly access even numbered (starting from zero) regions. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> int main(int argc, char *argv[]) { char **regions; int nr_regions; int sz_region; int i; if (argc != 3) { printf("Usage: %s <number> <size (bytes)>\n", argv[0]); return -1; } nr_regions = atoi(argv[1]); sz_region = atoi(argv[2]); regions = malloc(sizeof(*regions) * nr_regions); for (i = 0; i < nr_regions; i++) regions[i] = malloc(sz_region); while (1) { for (i = 0; i < nr_regions; i++) { if (i % 2 == 0) memset(regions[i], i, sz_region); } } return 0; }