void setup(void)
{
int memnode, ret;
tst_require_root(NULL);
tst_sig(FORK, DEF_HANDLER, cleanup);
TEST_PAUSE;
overcommit = get_sys_tune("overcommit_memory");
set_sys_tune("overcommit_memory", 1, 1);
mount_mem("cpuset", "cpuset", NULL, CPATH, CPATH_NEW);
/*
* Some nodes do not contain memory, so use
* get_allowed_nodes(NH_MEMS) to get a memory
* node. This operation also applies to Non-NUMA
* systems.
*/
ret = get_allowed_nodes(NH_MEMS, 1, &memnode);
if (ret < 0)
tst_brkm(TBROK, NULL, "Failed to get a memory node "
"using get_allowed_nodes()");
write_cpusets(memnode);
}
static void setup(void)
{
int memnode, ret;
if (!is_numa(NULL, NH_MEMS, 1))
tst_brk(TCONF, "requires NUMA with at least 1 node");
overcommit = get_sys_tune("overcommit_memory");
set_sys_tune("overcommit_memory", 1, 1);
mount_mem("cpuset", "cpuset", NULL, CPATH, CPATH_NEW);
cpuset_mounted = 1;
/*
* Some nodes do not contain memory, so use
* get_allowed_nodes(NH_MEMS) to get a memory
* node. This operation also applies to Non-NUMA
* systems.
*/
ret = get_allowed_nodes(NH_MEMS, 1, &memnode);
if (ret < 0)
tst_brk(TBROK, "Failed to get a memory node "
"using get_allowed_nodes()");
write_cpusets(memnode);
}
void setup(void)
{
int ret, memnode;
tst_require_root();
tst_sig(FORK, DEF_HANDLER, cleanup);
TEST_PAUSE;
if (!is_numa(NULL, NH_MEMS, 1))
tst_brkm(TCONF, NULL, "requires NUMA with at least 1 node");
overcommit = get_sys_tune("overcommit_memory");
set_sys_tune("overcommit_memory", 1, 1);
mount_mem("memcg", "cgroup", "memory", MEMCG_PATH, MEMCG_PATH_NEW);
mount_mem("cpuset", "cpuset", NULL, CPATH, CPATH_NEW);
write_memcg();
/*
* Some nodes do not contain memory, so use
* get_allowed_nodes(NH_MEMS) to get a memory
* node. This operation also applies to Non-NUMA
* systems.
*/
ret = get_allowed_nodes(NH_MEMS, 1, &memnode);
if (ret < 0)
tst_brkm(TBROK, cleanup, "Failed to get a memory node "
"using get_allowed_nodes()");
write_cpusets(memnode);
}
int main(int argc, char *argv[])
{
int lc;
int size = 128, num = 3, unit = 1;
unsigned long nmask[MAXNODES / BITS_PER_LONG] = { 0 };
unsigned int node;
tst_parse_opts(argc, argv, ksm_options, ksm_usage);
node = get_a_numa_node(tst_exit);
set_node(nmask, node);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
check_ksm_options(&size, &num, &unit);
if (set_mempolicy(MPOL_BIND, nmask, MAXNODES) == -1) {
if (errno != ENOSYS)
tst_brkm(TBROK | TERRNO, cleanup,
"set_mempolicy");
else
tst_brkm(TCONF, cleanup,
"set_mempolicy syscall is not "
"implemented on your system.");
}
create_same_memory(size, num, unit);
write_cpusets(node);
create_same_memory(size, num, unit);
}
cleanup();
tst_exit();
}
void testoom(int mempolicy, int lite, int numa)
{
if (numa && !mempolicy)
write_cpusets();
tst_resm(TINFO, "start normal OOM testing.");
oom(NORMAL, mempolicy, lite);
tst_resm(TINFO, "start OOM testing for mlocked pages.");
oom(MLOCK, mempolicy, lite);
if (access(PATH_KSM, F_OK) == -1)
tst_brkm(TCONF, NULL, "KSM configuration is not enabled");
tst_resm(TINFO, "start OOM testing for KSM pages.");
oom(KSM, mempolicy, lite);
}
int main(int argc, char *argv[])
{
int lc;
char *msg;
int size = 128, num = 3, unit = 1;
unsigned long nnodes = 1;
unsigned long nmask = 2;
msg = parse_opts(argc, argv, ksm_options, ksm_usage);
if (msg != NULL)
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
nnodes = count_numa();
if (count_numa() <= 1)
tst_brkm(TCONF, NULL, "required a NUMA system.");
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
Tst_count = 0;
check_ksm_options(&size, &num, &unit);
write_memcg();
if (set_mempolicy(MPOL_BIND, &nmask, MAXNODES) == -1) {
if (errno != ENOSYS)
tst_brkm(TBROK|TERRNO, cleanup, "set_mempolicy");
else
tst_brkm(TCONF, cleanup,
"set_mempolicy syscall is not implemented on your system.");
}
create_same_memory(size, num, unit);
write_cpusets();
create_same_memory(size, num, unit);
}
cleanup();
tst_exit();
}