Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 1 | #ifndef _MEM_H |
| 2 | #define _MEM_H |
Caspar Zhang | 4543438 | 2011-08-02 18:00:45 +0800 | [diff] [blame] | 3 | #include "config.h" |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 4 | #include "test.h" |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 5 | |
Caspar Zhang | 2031d3c | 2011-12-23 18:03:56 +0800 | [diff] [blame] | 6 | #if defined(__powerpc__) || defined(__powerpc64__) |
| 7 | #define MAXNODES 256 |
| 8 | #else |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 9 | #define MAXNODES 512 |
Caspar Zhang | 2031d3c | 2011-12-23 18:03:56 +0800 | [diff] [blame] | 10 | #endif |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 11 | #define MB (1UL<<20) |
Caspar Zhang | 3fa874a | 2011-12-28 14:16:20 +0800 | [diff] [blame] | 12 | #define KB (1UL<<10) |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 13 | #define PATH_SYS_SYSTEM "/sys/devices/system" |
Caspar Zhang | 3fa874a | 2011-12-28 14:16:20 +0800 | [diff] [blame] | 14 | #define PATH_SYSVM "/proc/sys/vm/" |
Caspar Zhang | 233e122 | 2011-12-23 13:02:56 +0800 | [diff] [blame] | 15 | #define PATH_MEMINFO "/proc/meminfo" |
Lans Zhang | cb2967b | 2013-04-17 16:35:27 +0800 | [diff] [blame] | 16 | #define BITS_PER_LONG (8 * sizeof(long)) |
| 17 | |
| 18 | static inline void set_node(unsigned long *array, unsigned int node) |
| 19 | { |
| 20 | array[node / BITS_PER_LONG] |= 1UL << (node % BITS_PER_LONG); |
| 21 | } |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 22 | |
Zhouping Liu | 6b699d0 | 2013-05-13 16:43:27 +0800 | [diff] [blame] | 23 | static inline void clean_node(unsigned long *array) |
| 24 | { |
Xiaoguang Wang | f200be5 | 2014-04-28 16:47:13 +0800 | [diff] [blame] | 25 | unsigned int i; |
Zhouping Liu | 6b699d0 | 2013-05-13 16:43:27 +0800 | [diff] [blame] | 26 | |
| 27 | for (i = 0; i < MAXNODES / BITS_PER_LONG; i++) |
| 28 | array[i] &= 0UL; |
| 29 | } |
| 30 | |
Caspar Zhang | a7f0eed | 2012-02-28 15:44:04 +0800 | [diff] [blame] | 31 | /* OOM */ |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 32 | |
Caspar Zhang | a7f0eed | 2012-02-28 15:44:04 +0800 | [diff] [blame] | 33 | #define LENGTH (3UL<<30) |
| 34 | #define TESTMEM (1UL<<30) |
| 35 | #define OVERCOMMIT 1 |
| 36 | #define NORMAL 2 |
| 37 | #define MLOCK 3 |
| 38 | #define KSM 4 |
Caspar Zhang | ff74ba5 | 2012-02-27 16:13:18 +0800 | [diff] [blame] | 39 | |
| 40 | long overcommit; |
Jan Stancek | 30ac84c | 2014-07-25 09:58:47 +0200 | [diff] [blame] | 41 | void oom(int testcase, int lite, int retcode, int allow_sigkill); |
| 42 | void testoom(int mempolicy, int lite, int retcode, int allow_sigkill); |
Caspar Zhang | 6009edf | 2012-02-20 18:42:36 +0800 | [diff] [blame] | 43 | |
Caspar Zhang | a7f0eed | 2012-02-28 15:44:04 +0800 | [diff] [blame] | 44 | /* KSM */ |
| 45 | |
| 46 | #define PATH_KSM "/sys/kernel/mm/ksm/" |
| 47 | |
Zhouping Liu | 65ca1bd | 2013-05-13 16:43:28 +0800 | [diff] [blame] | 48 | void test_ksm_merge_across_nodes(unsigned long nr_pages); |
| 49 | |
Zhouping Liu | 0b34193 | 2013-04-16 22:30:07 +0800 | [diff] [blame] | 50 | /* THP */ |
| 51 | |
| 52 | #define PATH_THP "/sys/kernel/mm/transparent_hugepage/" |
| 53 | #define PATH_KHPD PATH_THP "khugepaged/" |
| 54 | |
| 55 | int opt_nr_children, opt_nr_thps; |
| 56 | char *opt_nr_children_str, *opt_nr_thps_str; |
Zhouping Liu | d6b67f8 | 2013-04-16 22:30:08 +0800 | [diff] [blame] | 57 | void test_transparent_hugepage(int nr_children, int nr_thps, |
| 58 | int hg_aligned, int mempolicy); |
Zhouping Liu | 0b34193 | 2013-04-16 22:30:07 +0800 | [diff] [blame] | 59 | void check_thp_options(int *nr_children, int *nr_thps); |
| 60 | void thp_usage(void); |
| 61 | |
Wanlong Gao | 892153a | 2012-04-02 16:21:59 +0800 | [diff] [blame] | 62 | /* HUGETLB */ |
| 63 | |
| 64 | #define PATH_SHMMAX "/proc/sys/kernel/shmmax" |
| 65 | |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 66 | void write_memcg(void); |
Caspar Zhang | 6009edf | 2012-02-20 18:42:36 +0800 | [diff] [blame] | 67 | void create_same_memory(int size, int num, int unit); |
Caspar Zhang | a7f0eed | 2012-02-28 15:44:04 +0800 | [diff] [blame] | 68 | int opt_num, opt_size, opt_unit; |
| 69 | char *opt_numstr, *opt_sizestr, *opt_unitstr; |
Caspar Zhang | 6009edf | 2012-02-20 18:42:36 +0800 | [diff] [blame] | 70 | void check_ksm_options(int *size, int *num, int *unit); |
| 71 | void ksm_usage(void); |
| 72 | |
Caspar Zhang | a7f0eed | 2012-02-28 15:44:04 +0800 | [diff] [blame] | 73 | /* cpuset/memcg */ |
Caspar Zhang | 6d4044f | 2012-02-28 16:12:15 +0800 | [diff] [blame] | 74 | |
Caspar Zhang | a7f0eed | 2012-02-28 15:44:04 +0800 | [diff] [blame] | 75 | #define CPATH "/dev/cpuset" |
| 76 | #define CPATH_NEW CPATH "/1" |
| 77 | #define MEMCG_PATH "/dev/cgroup" |
| 78 | #define MEMCG_PATH_NEW MEMCG_PATH "/1" |
Zhouping Liu | e096339 | 2013-04-23 15:12:55 +0800 | [diff] [blame] | 79 | #define MEMCG_LIMIT MEMCG_PATH_NEW "/memory.limit_in_bytes" |
Zhouping Liu | 3f8c002 | 2012-03-19 18:28:15 +0800 | [diff] [blame] | 80 | #define MEMCG_SW_LIMIT MEMCG_PATH_NEW "/memory.memsw.limit_in_bytes" |
Caspar Zhang | a7f0eed | 2012-02-28 15:44:04 +0800 | [diff] [blame] | 81 | #if HAVE_SYS_EVENTFD_H |
| 82 | #define PATH_OOMCTRL MEMCG_PATH_NEW "/memory.oom_control" |
| 83 | #define PATH_EVTCTRL MEMCG_PATH_NEW "/cgroup.event_control" |
| 84 | #endif |
Caspar Zhang | 6009edf | 2012-02-20 18:42:36 +0800 | [diff] [blame] | 85 | |
Caspar Zhang | ff92e94 | 2012-02-29 10:58:15 +0800 | [diff] [blame] | 86 | void read_cpuset_files(char *prefix, char *filename, char *retbuf); |
| 87 | void write_cpuset_files(char *prefix, char *filename, char *buf); |
Caspar Zhang | a7f0eed | 2012-02-28 15:44:04 +0800 | [diff] [blame] | 88 | void write_cpusets(long nd); |
| 89 | void mount_mem(char *name, char *fs, char *options, char *path, char *path_new); |
| 90 | void umount_mem(char *path, char *path_new); |
| 91 | |
| 92 | /* shared */ |
Caspar Zhang | a98ac19 | 2012-08-09 14:15:41 +0800 | [diff] [blame] | 93 | unsigned int get_a_numa_node(void (*cleanup_fn)(void)); |
Caspar Zhang | 6009edf | 2012-02-20 18:42:36 +0800 | [diff] [blame] | 94 | int path_exist(const char *path, ...); |
| 95 | long read_meminfo(char *item); |
Caspar Zhang | 3fa874a | 2011-12-28 14:16:20 +0800 | [diff] [blame] | 96 | void set_sys_tune(char *sys_file, long tune, int check); |
| 97 | long get_sys_tune(char *sys_file); |
Caspar Zhang | 6009edf | 2012-02-20 18:42:36 +0800 | [diff] [blame] | 98 | void cleanup(void); |
| 99 | void setup(void); |
| 100 | |
Wanlong Gao | 892153a | 2012-04-02 16:21:59 +0800 | [diff] [blame] | 101 | void update_shm_size(size_t *shm_size); |
| 102 | |
Garrett Cooper | ecd667e | 2011-01-19 01:06:18 -0800 | [diff] [blame] | 103 | #endif |