255 static int check_ksm_merge(int mapping, int prot, long page_count, int timeout, size_t page_size)  in check_ksm_merge()  argument
266 	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);  in check_ksm_merge()
270 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in check_ksm_merge()
274 	if (assert_ksm_pages_count(page_count)) {  in check_ksm_merge()
276 		munmap(map_ptr, page_size * page_count);  in check_ksm_merge()
282 	munmap(map_ptr, page_size * page_count);  in check_ksm_merge()
290 	int page_count = 2;  in check_ksm_unmerge()  local
298 	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);  in check_ksm_unmerge()
302 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in check_ksm_unmerge()
316 		munmap(map_ptr, page_size * page_count);  in check_ksm_unmerge()
322 	munmap(map_ptr, page_size * page_count);  in check_ksm_unmerge()
326 static int check_ksm_zero_page_merge(int mapping, int prot, long page_count, int timeout,  in check_ksm_zero_page_merge()  argument
341 	map_ptr = allocate_memory(NULL, prot, mapping, 0, page_size * page_count);  in check_ksm_zero_page_merge()
345 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in check_ksm_zero_page_merge()
357 	else if (!use_zero_pages && !assert_ksm_pages_count(page_count))  in check_ksm_zero_page_merge()
361 	munmap(map_ptr, page_size * page_count);  in check_ksm_zero_page_merge()
366 	munmap(map_ptr, page_size * page_count);  in check_ksm_zero_page_merge()
396 	int page_count = 2;  in check_ksm_numa_merge()  local
438 	if (merge_across_nodes && !assert_ksm_pages_count(page_count))  in check_ksm_numa_merge()
570 	size_t page_count = 4000;  in ksm_cow_time()  local
572 	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);  in ksm_cow_time()
580 	for (size_t i = 0; i < page_count - 1; i = i + 2)  in ksm_cow_time()
590 	printf("Total size:    %lu MiB\n\n", (page_size * page_count) / MB);  in ksm_cow_time()
594 	printf("Average speed:  %.3f MiB/s\n\n", ((page_size * (page_count / 2)) / MB) /  in ksm_cow_time()
598 	for (size_t i = 0; i < page_count - 1; i = i + 2) {  in ksm_cow_time()
602 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in ksm_cow_time()
609 	for (size_t i = 0; i < page_count - 1; i = i + 2)  in ksm_cow_time()
622 	printf("Average speed:  %.3f MiB/s\n", ((page_size * (page_count / 2)) / MB) /  in ksm_cow_time()
625 	munmap(map_ptr, page_size * page_count);  in ksm_cow_time()
630 	munmap(map_ptr, page_size * page_count);  in ksm_cow_time()
639 	long page_count = KSM_PAGE_COUNT_DEFAULT;  in main()  local
653 			page_count = atol(optarg);  in main()
654 			if (page_count <= 0) {  in main()
729 	    ksm_write_sysfs(KSM_FP("pages_to_scan"), page_count))  in main()
734 		ret = check_ksm_merge(MAP_PRIVATE | MAP_ANONYMOUS, prot, page_count,  in main()
742 		ret = check_ksm_zero_page_merge(MAP_PRIVATE | MAP_ANONYMOUS, prot, page_count,  in main()