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()
263 		munmap(map_ptr, page_size * page_count);  in check_ksm_merge()
269 	munmap(map_ptr, page_size * page_count);  in check_ksm_merge()
273 static int check_ksm_unmerge(int mapping, int prot, int timeout, size_t page_size)  in check_ksm_unmerge()  argument
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()
294 	memset(map_ptr + page_size, '+', 1);  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()
314 				     bool use_zero_pages, size_t page_size)  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()
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()
358 				size_t page_size)  in check_ksm_numa_merge()  argument
381 	numa1_map_ptr = numa_alloc_onnode(page_size, 0);  in check_ksm_numa_merge()
382 	numa2_map_ptr = numa_alloc_onnode(page_size, 1);  in check_ksm_numa_merge()
388 	memset(numa1_map_ptr, '*', page_size);  in check_ksm_numa_merge()
389 	memset(numa2_map_ptr, '*', page_size);  in check_ksm_numa_merge()
392 	if (ksm_merge_pages(numa1_map_ptr, page_size, start_time, timeout) ||  in check_ksm_numa_merge()
393 	    ksm_merge_pages(numa2_map_ptr, page_size, start_time, timeout))  in check_ksm_numa_merge()
407 	numa_free(numa1_map_ptr, page_size);  in check_ksm_numa_merge()
408 	numa_free(numa2_map_ptr, page_size);  in check_ksm_numa_merge()
413 	numa_free(numa1_map_ptr, page_size);  in check_ksm_numa_merge()
414 	numa_free(numa2_map_ptr, page_size);  in check_ksm_numa_merge()
460 static int ksm_cow_time(int mapping, int prot, int timeout, size_t page_size)  in ksm_cow_time()  argument
469 	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);  in ksm_cow_time()
478 		memset(map_ptr + page_size * i, '-', 1);  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()
496 		memset(map_ptr + page_size * i, '+', i / 2 + 1);  in ksm_cow_time()
497 		memset(map_ptr + page_size * (i + 1), '+', i / 2 + 1);  in ksm_cow_time()
499 	if (ksm_merge_pages(map_ptr, page_size * page_count, start_time, timeout))  in ksm_cow_time()
507 		memset(map_ptr + page_size * i, '-', 1);  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()
537 	size_t page_size = sysconf(_SC_PAGESIZE);  in main()  local
628 				      ksm_scan_limit_sec, page_size);  in main()
632 					page_size);  in main()
636 						ksm_scan_limit_sec, use_zero_pages, page_size);  in main()
640 					   merge_across_nodes, page_size);  in main()
652 				   page_size);  in main()