tests/stress/test_multi_sessions_per_uid_10app

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2013 David Goulet <dgoulet@efficios.com>
   4 #
   5 # This library is free software; you can redistribute it and/or modify it under
   6 # the terms of the GNU Lesser General Public License as published by the Free
   7 # Software Foundation; version 2.1 of the License.
   8 # details.
   9 #
  10 # You should have received a copy of the GNU Lesser General Public License
  11 # along with this library; if not, write to the Free Software Foundation, Inc.,
  12 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  13
  14
  15 CURDIR=$(dirname $0)/
  16 TESTDIR=$CURDIR/..
  17 LAUNCH_APP="launch_ust_app"
  18 SESSION_NAME="stress"
  19 EVENT_NAME="tp:tptest"
  20 LOG_FILE="sessiond.log"
  21 CHANNEL_NAME="channel0"
  22 NUM_TESTS=16
  23 NR_APP=10
  24 NR_SESSION=5
  25 NR_LOOP=1000
  26 COREDUMP_FILE=$(cat /proc/sys/kernel/core_pattern)
  27
  28 TEST_DESC="Stress test - $NR_SESSION sessions per UID with $NR_APP apps"
  29
  30 source $TESTDIR/utils/utils.sh
  31
  32 # MUST set TESTDIR before calling those functions
  33
  34 function enable_channel_per_uid()
  35 {
  36     local sess_name=$1
  37     local channel_name=$2
  38
  39     $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name >/dev/null 2>&1
  40     ok $? "Enable channel $channel_name per UID for session $sess_name"
  41 }
  42
  43 function check_sessiond()
  44 {
  45         if [ -z "$(pidof lt-lttng-sessiond)" ]; then
  46                 local str_date=$(date +%H%M%S-%d%m%Y)
  47
  48                 diag "!!!The session daemon died unexpectedly!!!"
  49                 mv $LOG_FILE $LOG_FILE-$str_date
  50                 if [ -e $COREDUMP_FILE ]; then
  51                         mv $COREDUMP_FILE $COREDUMP_FILE-$str_date
  52                 fi
  53                 exit 1
  54         fi
  55 }
  56
  57 function start_sessiond()
  58 {
  59         local SESSIOND_BIN="lttng-sessiond"
  60
  61         validate_kernel_version
  62         if [ $? -ne 0 ]; then
  63                 fail "Start session daemon"
  64                 BAIL_OUT "*** Kernel too old for session daemon tests ***"
  65         fi
  66
  67         if [ -z $(pidof lt-$SESSIOND_BIN) ]; then
  68                 # We have to start it like this so the ulimit -c is used by this
  69                 # process. Also, we collect any error message printed out.
  70                 $TESTDIR/../src/bin/lttng-sessiond/$SESSIOND_BIN --quiet --background --consumerd32-path="$TESTDIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$TESTDIR/../src/bin/lttng-consumerd/lttng-consumerd" >$LOG_FILE 2>&1
  71                 status=$?
  72                 ok $status "Start session daemon"
  73         fi
  74 }
  75
  76 test_stress()
  77 {
  78         for b in $(seq 1 $NR_LOOP); do
  79                 for a in $(seq 1 $NR_SESSION); do
  80                         create_lttng_session $SESSION_NAME-$a $TRACE_PATH
  81                         check_sessiond
  82                         enable_channel_per_uid $SESSION_NAME-$a $CHANNEL_NAME
  83                         check_sessiond
  84                         enable_ust_lttng_event $SESSION_NAME-$a $EVENT_NAME
  85                         check_sessiond
  86                         start_lttng_tracing $SESSION_NAME-$a
  87                         check_sessiond
  88                 done
  89
  90                 for a in $(seq 1 $NR_SESSION); do
  91                         stop_lttng_tracing $SESSION_NAME-$a
  92                         check_sessiond
  93                         destroy_lttng_session $SESSION_NAME-$a
  94                         check_sessiond
  95                 done
  96         done
  97
  98         return 0
  99 }
 100
 101 function cleanup()
 102 {
 103         diag "Cleaning up!"
 104         killall -9 $LAUNCH_APP
 105         stop_lttng_sessiond
 106 }
 107
 108 function sighandler()
 109 {
 110         cleanup
 111         rm $LOG_FILE
 112         exit 1
 113 }
 114
 115 trap sighandler SIGINT
 116
 117 # Make sure we collect a coredump if possible.
 118 ulimit -c unlimited
 119
 120 # MUST set TESTDIR before calling those functions
 121 plan_tests $NUM_TESTS
 122
 123 print_test_banner "$TEST_DESC"
 124
 125 start_sessiond
 126
 127 diag "Starting applications"
 128
 129 # Start NR_APP applications script that will spawn apps non stop.
 130 ./$TESTDIR/stress/$LAUNCH_APP $NR_APP &
 131
 132 TRACE_PATH=$(mktemp -d)
 133
 134 test_stress
 135 out=$?
 136 if [ $out -ne 0 ]; then
 137         cleanup
 138         exit $out
 139 fi
 140
 141 cleanup
 142 rm -rf $TRACE_PATH
 143 rm $LOG_FILE
 144 exit 0