selftests/mm/charge_reserved_hugetlb.sh

10   echo "This test must be run as root. Skipping..."
34   echo "+hugetlb" >$cgroup_path/cgroup.subtree_control
47     echo $$ >$cgroup_path/cgroup.procs
49     echo $$ >$cgroup_path/tasks
54     umount /mnt/huge || echo error
66   echo 0 >/proc/sys/vm/nr_hugepages
67   echo CLEANUP DONE
76     echo "expected ($expected) != actual ($actual): $3"
86   echo $mb
98   echo writing cgroup limit: "$cgroup_limit"
99   echo "$cgroup_limit" >$cgroup_path/$name/hugetlb.${MB}MB.$fault_limit_file
101   echo writing reseravation limit: "$reservation_limit"
102   echo "$reservation_limit" > \
106     echo 0 >$cgroup_path/$name/cpuset.cpus
109     echo 0 >$cgroup_path/$name/cpuset.mems
118     echo Waiting for hugetlb memory to get depleted.
131     echo Waiting for hugetlb memory reservation to reach size $size.
144     echo Waiting for hugetlb memory to reach size $size.
173   echo
174   echo Starting:
175   echo hugetlb_usage="$hugetlb_before"
176   echo reserved_usage="$reserved_before"
177   echo expect_failure is "$expect_failure"
191       echo waiting for DONE signal.
194         echo "FAIL: The write died"
201     echo ================= write_hugetlb_memory.sh output is:
203     echo ================= end output.
215     echo write_result is $write_result
242   echo After write:
243   echo hugetlb_usage="$hugetlb_after"
244   echo reserved_usage="$reserved_after"
254     echo killing write_to_hugetlbfs
285   echo nr hugepages = "$nr_hugepages"
286   echo "$nr_hugepages" >/proc/sys/vm/nr_hugepages
302   echo $hugetlb_difference
303   echo $reserved_difference
338   echo nr hugepages = "$nr_hugepages"
339   echo "$nr_hugepages" >/proc/sys/vm/nr_hugepages
419         echo
420         echo
421         echo
422         echo Test normal case.
423         echo private=$private, populate=$populate, method=$method, reserve=$reserve
426         echo Memory charged to hugtlb=$hugetlb_difference
427         echo Memory charged to reservation=$reserved_difference
445         echo 'PASS'
448         echo
449         echo
450         echo
451         echo Test normal case with write.
452         echo private=$private, populate=$populate, method=$method, reserve=$reserve
455         echo Memory charged to hugtlb=$hugetlb_difference
456         echo Memory charged to reservation=$reserved_difference
464         echo 'PASS'
468         echo
469         echo
470         echo
471         echo Test more than reservation case.
472         echo private=$private, populate=$populate, method=$method, reserve=$reserve
481         echo 'PASS'
485         echo
486         echo
487         echo
488         echo Test more than cgroup limit case.
489         echo private=$private, populate=$populate, method=$method, reserve=$reserve
497         echo 'PASS'
501         echo
502         echo
503         echo
504         echo Test normal case, multiple cgroups.
505         echo private=$private, populate=$populate, method=$method, reserve=$reserve
510         echo Memory charged to hugtlb1=$hugetlb_difference1
511         echo Memory charged to reservation1=$reserved_difference1
512         echo Memory charged to hugtlb2=$hugetlb_difference2
513         echo Memory charged to reservation2=$reserved_difference2
544         echo 'PASS'
547         echo
548         echo
549         echo
550         echo Test normal case with write, multiple cgroups.
551         echo private=$private, populate=$populate, method=$method, reserve=$reserve
556         echo Memory charged to hugtlb1=$hugetlb_difference1
557         echo Memory charged to reservation1=$reserved_difference1
558         echo Memory charged to hugtlb2=$hugetlb_difference2
559         echo Memory charged to reservation2=$reserved_difference2
572         echo 'PASS'