src/testsuite/xeno-test/dohell

   1 #! /bin/sh
   2
   3 usage() {
   4     cat <<EOF
   5 $0 [ -b path ] [ -s server ] [ -p port ] [ -m mntpoint ] [ -l path | seconds ]
   6
   7 Generate load, using an assorted set of commands and optionally:
   8 - hackbench if the path to the hackbench binary is specified with -b;
   9 - nc to send TCP data to "server" port "port" if -s is specified (if -p
  10 is not specified, the port 9, aka discard is used);
  11 - dd to write data under "mntpoint" if -m is specified.
  12
  13 during the runtime of the LTP test if the path to the LTP installation
  14 directory is specifed with -l or during "seconds" seconds.
  15 EOF
  16 }
  17
  18 port=9
  19 while [ $# -gt 0 ]; do
  20     case $1 in
  21         -h|--help) usage
  22             exit 0;;
  23         -b) shift; hackbench="$1"; shift
  24             ;;
  25         -s) shift; server="$1"; shift
  26             ;;
  27         -p) shift; port="$1"; shift
  28             ;;
  29         -m) shift; mntpoint="$1"; shift
  30             ;;
  31         -l) shift; ltpdir="$1"; shift
  32             ;;
  33         -*) usage
  34             exit 1;;
  35         *) break;;
  36     esac
  37 done
  38
  39 if [ -z "$ltpdir" -a $# -ne 1 ]; then
  40     usage
  41     exit 1
  42 fi
  43
  44 pids=""
  45
  46 if [ -n "$server" ]; then
  47     if type nc > /dev/null 2>&1; then
  48         nc=nc
  49     elif type netcat > /dev/null 2>&1; then
  50         nc=netcat
  51     else
  52         echo netcat or nc not found
  53         exit 1
  54     fi
  55
  56     seq 1 399999 > /tmp/netcat.data
  57     ( while :; do cat /tmp/netcat.data; sleep 15; done | $nc $server $port ) &
  58     pids="$!"
  59 fi
  60
  61 if [ -n "$mntpoint" ]; then
  62     while :; do dd if=/dev/zero of=$mntpoint/bigfile bs=1024000 count=100; done &
  63     pids="$pids $!"
  64 fi
  65
  66 if [ -n "$hackbench" ]; then
  67     while :; do $hackbench 1; done &
  68     pids="$pids $!"
  69 fi
  70
  71 while :; do cat /proc/interrupts; done > /dev/null 2>&1 &
  72 pids="$pids $!"
  73
  74 while :; do ps w; done > /dev/null 2>&1 &
  75 pids="$pids $!"
  76
  77 dd if=/dev/zero of=/dev/null &
  78 pids="$pids $!"
  79
  80 while :; do ls -lR / > /dev/null 2>&1; done &
  81 pids="$pids $!"
  82
  83 test -e /proc/sys/kernel/hung_task_timeout_secs && \
  84 echo 0 > /proc/sys/kernel/hung_task_timeout_secs
  85
  86 if [ -n "$ltpdir" ]; then
  87     cd "$ltpdir" && ./runalltests.sh
  88     cd "$ltpdir" && ./runalltests.sh
  89 else
  90     sleep $1
  91 fi
  92
  93 kill $pids > /dev/null 2>&1
  94 sleep 5
  95 killall -KILL cat $nc dd hackbench ls ps > /dev/null 2>&1
  96 killall -KILL `basename $0` sleep > /dev/null 2>&1