tools/testing/selftests/vm/run_vmtests

   1 #!/bin/bash
   2 #please run as root
   3
   4 #we need 256M, below is the size in kB
   5 needmem=262144
   6 mnt=./huge
   7 exitcode=0
   8
   9 #get pagesize and freepages from /proc/meminfo
  10 while read name size unit; do
  11         if [ "$name" = "HugePages_Free:" ]; then
  12                 freepgs=$size
  13         fi
  14         if [ "$name" = "Hugepagesize:" ]; then
  15                 pgsize=$size
  16         fi
  17 done < /proc/meminfo
  18
  19 #set proper nr_hugepages
  20 if [ -n "$freepgs" ] && [ -n "$pgsize" ]; then
  21         nr_hugepgs=`cat /proc/sys/vm/nr_hugepages`
  22         needpgs=`expr $needmem / $pgsize`
  23         tries=2
  24         while [ $tries -gt 0 ] && [ $freepgs -lt $needpgs ]; do
  25                 lackpgs=$(( $needpgs - $freepgs ))
  26                 echo 3 > /proc/sys/vm/drop_caches
  27                 echo $(( $lackpgs + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages
  28                 if [ $? -ne 0 ]; then
  29                         echo "Please run this test as root"
  30                         exit 1
  31                 fi
  32                 while read name size unit; do
  33                         if [ "$name" = "HugePages_Free:" ]; then
  34                                 freepgs=$size
  35                         fi
  36                 done < /proc/meminfo
  37                 tries=$((tries - 1))
  38         done
  39         if [ $freepgs -lt $needpgs ]; then
  40                 printf "Not enough huge pages available (%d < %d)\n" \
  41                        $freepgs $needpgs
  42                 exit 1
  43         fi
  44 else
  45         echo "no hugetlbfs support in kernel?"
  46         exit 1
  47 fi
  48
  49 mkdir $mnt
  50 mount -t hugetlbfs none $mnt
  51
  52 echo "--------------------"
  53 echo "running hugepage-mmap"
  54 echo "--------------------"
  55 ./hugepage-mmap
  56 if [ $? -ne 0 ]; then
  57         echo "[FAIL]"
  58         exitcode=1
  59 else
  60         echo "[PASS]"
  61 fi
  62
  63 shmmax=`cat /proc/sys/kernel/shmmax`
  64 shmall=`cat /proc/sys/kernel/shmall`
  65 echo 268435456 > /proc/sys/kernel/shmmax
  66 echo 4194304 > /proc/sys/kernel/shmall
  67 echo "--------------------"
  68 echo "running hugepage-shm"
  69 echo "--------------------"
  70 ./hugepage-shm
  71 if [ $? -ne 0 ]; then
  72         echo "[FAIL]"
  73         exitcode=1
  74 else
  75         echo "[PASS]"
  76 fi
  77 echo $shmmax > /proc/sys/kernel/shmmax
  78 echo $shmall > /proc/sys/kernel/shmall
  79
  80 echo "--------------------"
  81 echo "running map_hugetlb"
  82 echo "--------------------"
  83 ./map_hugetlb
  84 if [ $? -ne 0 ]; then
  85         echo "[FAIL]"
  86         exitcode=1
  87 else
  88         echo "[PASS]"
  89 fi
  90
  91 echo "NOTE: The above hugetlb tests provide minimal coverage.  Use"
  92 echo "      https://github.com/libhugetlbfs/libhugetlbfs.git for"
  93 echo "      hugetlb regression testing."
  94
  95 echo "--------------------"
  96 echo "running userfaultfd"
  97 echo "--------------------"
  98 ./userfaultfd 128 32
  99 if [ $? -ne 0 ]; then
 100         echo "[FAIL]"
 101         exitcode=1
 102 else
 103         echo "[PASS]"
 104 fi
 105
 106 #cleanup
 107 umount $mnt
 108 rm -rf $mnt
 109 echo $nr_hugepgs > /proc/sys/vm/nr_hugepages
 110
 111 echo "-----------------------"
 112 echo "running compaction_test"
 113 echo "-----------------------"
 114 ./compaction_test
 115 if [ $? -ne 0 ]; then
 116         echo "[FAIL]"
 117         exitcode=1
 118 else
 119         echo "[PASS]"
 120 fi
 121
 122 exit $exitcode