1 #!/bin/bash 2 # please run as root 3 4 # 5 # Normal tests requiring no special resources 6 # 7 ./run_fuse_test.sh 8 ./memfd_test 9 10 # 11 # To test memfd_create with hugetlbfs, there needs to be hpages_test 12 # huge pages free. Attempt to allocate enough pages to test. 13 # 14 hpages_test=8 15 16 # 17 # Get count of free huge pages from /proc/meminfo 18 # 19 while read name size unit; do 20 if [ "$name" = "HugePages_Free:" ]; then 21 freepgs=$size 22 fi 23 done < /proc/meminfo 24 25 # 26 # If not enough free huge pages for test, attempt to increase 27 # 28 if [ -n "$freepgs" ] && [ $freepgs -lt $hpages_test ]; then 29 nr_hugepgs=`cat /proc/sys/vm/nr_hugepages` 30 hpages_needed=`expr $hpages_test - $freepgs` 31 32 echo 3 > /proc/sys/vm/drop_caches 33 echo $(( $hpages_needed + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages 34 if [ $? -ne 0 ]; then 35 echo "Please run this test as root" 36 exit 1 37 fi 38 while read name size unit; do 39 if [ "$name" = "HugePages_Free:" ]; then 40 freepgs=$size 41 fi 42 done < /proc/meminfo 43 fi 44 45 # 46 # If still not enough huge pages available, exit. But, give back any huge 47 # pages potentially allocated above. 48 # 49 if [ $freepgs -lt $hpages_test ]; then 50 # nr_hugepgs non-zero only if we attempted to increase 51 if [ -n "$nr_hugepgs" ]; then 52 echo $nr_hugepgs > /proc/sys/vm/nr_hugepages 53 fi 54 printf "Not enough huge pages available (%d < %d)\n" \ 55 $freepgs $needpgs 56 exit 1 57 fi 58 59 # 60 # Run the hugetlbfs test 61 # 62 ./memfd_test hugetlbfs 63 64 # 65 # Give back any huge pages allocated for the test 66 # 67 if [ -n "$nr_hugepgs" ]; then 68 echo $nr_hugepgs > /proc/sys/vm/nr_hugepages 69 fi 70
