selftests/vm/hugetlb_reparenting_test.sh

7   echo "This test must be run as root. Skipping..."
26     echo "+hugetlb +memory" >$CGROUP_ROOT/cgroup.subtree_control
36   echo $mb
42   echo cleanup
50   echo 0 >/proc/sys/vm/nr_hugepages
70     echo actual a = $((${actual_a%% *} / 1024 / 1024)) MB
71     echo expected a = $((${expected_a%% *} / 1024 / 1024)) MB
72     echo fail
82     echo actual a hugetlb = $((${actual_a_hugetlb%% *} / 1024 / 1024)) MB
83     echo expected a hugetlb = $((${expected_a_hugetlb%% *} / 1024 / 1024)) MB
84     echo fail
98     echo actual b = $((${actual_b%% *} / 1024 / 1024)) MB
99     echo expected b = $((${expected_b%% *} / 1024 / 1024)) MB
100     echo fail
110     echo actual b hugetlb = $((${actual_b_hugetlb%% *} / 1024 / 1024)) MB
111     echo expected b hugetlb = $((${expected_b_hugetlb%% *} / 1024 / 1024)) MB
112     echo fail
120   echo 100 >/proc/sys/vm/nr_hugepages
124     echo "+hugetlb +memory" >$CGROUP_ROOT/a/cgroup.subtree_control
126     echo 0 >$CGROUP_ROOT/a/cpuset.mems
127     echo 0 >$CGROUP_ROOT/a/cpuset.cpus
133     echo 0 >$CGROUP_ROOT/a/b/cpuset.mems
134     echo 0 >$CGROUP_ROOT/a/b/cpuset.cpus
147     echo $$ >$CGROUP_ROOT/$cgroup/cgroup.procs
149     echo 0 >$CGROUP_ROOT/$cgroup/cpuset.mems
150     echo 0 >$CGROUP_ROOT/$cgroup/cpuset.cpus
151     echo $$ >"$CGROUP_ROOT/$cgroup/tasks"
155     echo $$ >$CGROUP_ROOT/cgroup.procs
157     echo $$ >"$CGROUP_ROOT/tasks"
159   echo
168 echo
169 echo
170 echo Test charge, rmdir, uncharge
172 echo mkdir
175 echo write
178 echo rmdir
182 echo uncharge
187 echo done
188 echo
189 echo
191   echo "Test parent and child hugetlb usage"
194   echo write
197   echo Assert memory charged correctly for parent use.
202   echo Assert memory charged correctly for child use.
207   echo Assert memory reparent correctly.
212   echo Assert memory uncharged correctly.
218 echo
219 echo
220 echo "Test child only hugetlb usage"
221 echo setup
224 echo write
227 echo Assert memory charged correctly for child only use.
231 echo Assert memory reparent correctly.
236 echo Assert memory uncharged correctly.
241 echo ALL PASS