selftests/vm/charge_reserved_hugetlb.sh

7   echo "This test must be run as root. Skipping..."
35   echo "+hugetlb" >/dev/cgroup/memory/cgroup.subtree_control
40     echo $$ >$cgroup_path/cgroup.procs
42     echo $$ >$cgroup_path/tasks
47     umount /mnt/huge || echo error
59   echo 0 >/proc/sys/vm/nr_hugepages
60   echo CLEANUP DONE
69     echo "expected ($expected) != actual ($actual): $3"
79   echo $mb
91   echo writing cgroup limit: "$cgroup_limit"
92   echo "$cgroup_limit" >$cgroup_path/$name/hugetlb.${MB}MB.$fault_limit_file
94   echo writing reseravation limit: "$reservation_limit"
95   echo "$reservation_limit" > \
99     echo 0 >$cgroup_path/$name/cpuset.cpus
102     echo 0 >$cgroup_path/$name/cpuset.mems
111     echo Waiting for hugetlb memory to get depleted.
124     echo Waiting for hugetlb memory reservation to reach size $size.
137     echo Waiting for hugetlb memory to reach size $size.
166   echo
167   echo Starting:
168   echo hugetlb_usage="$hugetlb_before"
169   echo reserved_usage="$reserved_before"
170   echo expect_failure is "$expect_failure"
184       echo waiting for DONE signal.
187         echo "FAIL: The write died"
194     echo ================= write_hugetlb_memory.sh output is:
196     echo ================= end output.
208     echo write_result is $write_result
235   echo After write:
236   echo hugetlb_usage="$hugetlb_after"
237   echo reserved_usage="$reserved_after"
247     echo killing write_to_hugetlbfs
278   echo nr hugepages = "$nr_hugepages"
279   echo "$nr_hugepages" >/proc/sys/vm/nr_hugepages
295   echo $hugetlb_difference
296   echo $reserved_difference
331   echo nr hugepages = "$nr_hugepages"
332   echo "$nr_hugepages" >/proc/sys/vm/nr_hugepages
412         echo
413         echo
414         echo
415         echo Test normal case.
416         echo private=$private, populate=$populate, method=$method, reserve=$reserve
419         echo Memory charged to hugtlb=$hugetlb_difference
420         echo Memory charged to reservation=$reserved_difference
438         echo 'PASS'
441         echo
442         echo
443         echo
444         echo Test normal case with write.
445         echo private=$private, populate=$populate, method=$method, reserve=$reserve
448         echo Memory charged to hugtlb=$hugetlb_difference
449         echo Memory charged to reservation=$reserved_difference
457         echo 'PASS'
461         echo
462         echo
463         echo
464         echo Test more than reservation case.
465         echo private=$private, populate=$populate, method=$method, reserve=$reserve
474         echo 'PASS'
478         echo
479         echo
480         echo
481         echo Test more than cgroup limit case.
482         echo private=$private, populate=$populate, method=$method, reserve=$reserve
490         echo 'PASS'
494         echo
495         echo
496         echo
497         echo Test normal case, multiple cgroups.
498         echo private=$private, populate=$populate, method=$method, reserve=$reserve
503         echo Memory charged to hugtlb1=$hugetlb_difference1
504         echo Memory charged to reservation1=$reserved_difference1
505         echo Memory charged to hugtlb2=$hugetlb_difference2
506         echo Memory charged to reservation2=$reserved_difference2
537         echo 'PASS'
540         echo
541         echo
542         echo
543         echo Test normal case with write, multiple cgroups.
544         echo private=$private, populate=$populate, method=$method, reserve=$reserve
549         echo Memory charged to hugtlb1=$hugetlb_difference1
550         echo Memory charged to reservation1=$reserved_difference1
551         echo Memory charged to hugtlb2=$hugetlb_difference2
552         echo Memory charged to reservation2=$reserved_difference2
565         echo 'PASS'