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 APPS_PID=
  28
  29 TEST_DESC="Stress test - $NR_SESSION sessions per UID with $NR_APP apps"
  30
  31 source $TESTDIR/utils/utils.sh
  32
  33 # MUST set TESTDIR before calling those functions
  34
  35 function enable_channel_per_uid()
  36 {
  37     local sess_name=$1
  38     local channel_name=$2
  39
  40     $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name >/dev/null 2>&1
  41     ok $? "Enable channel $channel_name per UID for session $sess_name"
  42 }
  43
  44 function check_sessiond()
  45 {
  46         if [ -z "$(pgrep --full lt-lttng-sessiond)" ]; then
  47                 local str_date=$(date +%H%M%S-%d%m%Y)
  48
  49                 diag "!!!The session daemon died unexpectedly!!!"
  50                 mv $LOG_FILE $LOG_FILE-$str_date
  51                 if [ -e $COREDUMP_FILE ]; then
  52                         mv $COREDUMP_FILE $COREDUMP_FILE-$str_date
  53                 fi
  54                 exit 1
  55         fi
  56 }
  57
  58 function start_sessiond()
  59 {
  60         validate_kernel_version
  61         if [ $? -ne 0 ]; then
  62                 fail "Start session daemon"
  63                 BAIL_OUT "*** Kernel too old for session daemon tests ***"
  64         fi
  65
  66         if [ -z $(pgrep --full lt-$SESSIOND_BIN) ]; then
  67                 # We have to start it like this so the ulimit -c is used by this
  68                 # process. Also, we collect any error message printed out.
  69                 $TESTDIR/../src/bin/lttng-sessiond/$SESSIOND_BIN --quiet --background --consumerd32-path="$TESTDIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$TESTDIR/../src/bin/lttng-consumerd/lttng-consumerd" >$LOG_FILE 2>&1
  70                 status=$?
  71                 ok $status "Start session daemon"
  72         fi
  73 }
  74
  75 test_stress()
  76 {
  77         for b in $(seq 1 $NR_LOOP); do
  78                 for a in $(seq 1 $NR_SESSION); do
  79                         create_lttng_session_ok $SESSION_NAME-$a $TRACE_PATH
  80                         check_sessiond
  81                         enable_channel_per_uid $SESSION_NAME-$a $CHANNEL_NAME
  82                         check_sessiond
  83                         enable_ust_lttng_event_ok $SESSION_NAME-$a $EVENT_NAME
  84                         check_sessiond
  85                         start_lttng_tracing_ok $SESSION_NAME-$a
  86                         check_sessiond
  87                 done
  88
  89                 for a in $(seq 1 $NR_SESSION); do
  90                         stop_lttng_tracing_ok $SESSION_NAME-$a
  91                         check_sessiond
  92                         destroy_lttng_session_ok $SESSION_NAME-$a
  93                         check_sessiond
  94                 done
  95         done
  96
  97         return 0
  98 }
  99
 100 function cleanup()
 101 {
 102         diag "Cleaning up!"
 103         for p in ${APPS_PID}; do
 104                 kill -s SIGKILL ${p}
 105                 wait ${p} 2>/dev/null
 106         done
 107         APPS_PID=
 108         stop_lttng_sessiond
 109 }
 110
 111 function sighandler()
 112 {
 113         cleanup
 114         rm $LOG_FILE
 115         exit 1
 116 }
 117
 118 trap sighandler SIGINT
 119 trap sighandler SIGTERM
 120
 121 # Make sure we collect a coredump if possible.
 122 ulimit -c unlimited
 123
 124 # MUST set TESTDIR before calling those functions
 125 plan_tests $NUM_TESTS
 126
 127 print_test_banner "$TEST_DESC"
 128
 129 start_sessiond
 130
 131 diag "Starting applications"
 132
 133 # Start NR_APP applications script that will spawn apps non stop.
 134 ./$TESTDIR/stress/$LAUNCH_APP $NR_APP &
 135 APPS_PID="${APPS_PID} ${!}"
 136
 137 TRACE_PATH=$(mktemp -d)
 138
 139 test_stress
 140 out=$?
 141 if [ $out -ne 0 ]; then
 142         cleanup
 143         exit $out
 144 fi
 145
 146 cleanup
 147 rm -rf $TRACE_PATH
 148 rm $LOG_FILE
 149 exit 0