242 static int check_ksm_merge(int mapping, int prot, long page_count, int timeout, size_t page_size)  in check_ksm_merge()  argument
253 	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);  in check_ksm_merge()
257 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in check_ksm_merge()
261 	if (assert_ksm_pages_count(page_count)) {  in check_ksm_merge()
263 		munmap(map_ptr, page_size * page_count);  in check_ksm_merge()
269 	munmap(map_ptr, page_size * page_count);  in check_ksm_merge()
277 	int page_count = 2;  in check_ksm_unmerge()  local
285 	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);  in check_ksm_unmerge()
289 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in check_ksm_unmerge()
303 		munmap(map_ptr, page_size * page_count);  in check_ksm_unmerge()
309 	munmap(map_ptr, page_size * page_count);  in check_ksm_unmerge()
313 static int check_ksm_zero_page_merge(int mapping, int prot, long page_count, int timeout,  in check_ksm_zero_page_merge()  argument
328 	map_ptr = allocate_memory(NULL, prot, mapping, 0, page_size * page_count);  in check_ksm_zero_page_merge()
332 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in check_ksm_zero_page_merge()
344 	else if (!use_zero_pages && !assert_ksm_pages_count(page_count))  in check_ksm_zero_page_merge()
348 	munmap(map_ptr, page_size * page_count);  in check_ksm_zero_page_merge()
353 	munmap(map_ptr, page_size * page_count);  in check_ksm_zero_page_merge()
362 	int page_count = 2;  in check_ksm_numa_merge()  local
402 	if (merge_across_nodes && !assert_ksm_pages_count(page_count))  in check_ksm_numa_merge()
467 	size_t page_count = 4000;  in ksm_cow_time()  local
469 	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);  in ksm_cow_time()
477 	for (size_t i = 0; i < page_count - 1; i = i + 2)  in ksm_cow_time()
487 	printf("Total size:    %lu MiB\n\n", (page_size * page_count) / MB);  in ksm_cow_time()
491 	printf("Average speed:  %.3f MiB/s\n\n", ((page_size * (page_count / 2)) / MB) /  in ksm_cow_time()
495 	for (size_t i = 0; i < page_count - 1; i = i + 2) {  in ksm_cow_time()
499 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in ksm_cow_time()
506 	for (size_t i = 0; i < page_count - 1; i = i + 2)  in ksm_cow_time()
519 	printf("Average speed:  %.3f MiB/s\n", ((page_size * (page_count / 2)) / MB) /  in ksm_cow_time()
522 	munmap(map_ptr, page_size * page_count);  in ksm_cow_time()
527 	munmap(map_ptr, page_size * page_count);  in ksm_cow_time()
536 	long page_count = KSM_PAGE_COUNT_DEFAULT;  in main()  local
550 			page_count = atol(optarg);  in main()
551 			if (page_count <= 0) {  in main()
622 	    ksm_write_sysfs(KSM_FP("pages_to_scan"), page_count))  in main()
627 		ret = check_ksm_merge(MAP_PRIVATE | MAP_ANONYMOUS, prot, page_count,  in main()
635 		ret = check_ksm_zero_page_merge(MAP_PRIVATE | MAP_ANONYMOUS, prot, page_count,  in main()