tests/stress/test_multi_sessions_per_uid_10app

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
   4 #
   5 # SPDX-License-Identifier: LGPL-2.1-only
   6 #
   7
   8 CURDIR=$(dirname $0)/
   9 TESTDIR=$CURDIR/..
  10 LAUNCH_APP="launch_ust_app"
  11 SESSION_NAME="stress"
  12 EVENT_NAME="tp:tptest"
  13 LOG_FILE="sessiond.log"
  14 CHANNEL_NAME="channel0"
  15 NUM_TESTS=16
  16 NR_APP=10
  17 NR_SESSION=5
  18 NR_LOOP=1000
  19 COREDUMP_FILE=$(cat /proc/sys/kernel/core_pattern)
  20 APPS_PID=
  21
  22 TEST_DESC="Stress test - $NR_SESSION sessions per UID with $NR_APP apps"
  23
  24 source $TESTDIR/utils/utils.sh
  25
  26 # MUST set TESTDIR before calling those functions
  27
  28 function enable_channel_per_uid()
  29 {
  30     local sess_name=$1
  31     local channel_name=$2
  32
  33     $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name >/dev/null 2>&1
  34     ok $? "Enable channel $channel_name per UID for session $sess_name"
  35 }
  36
  37 function check_sessiond()
  38 {
  39         if [ -z "$(lttng_pgrep lt-lttng-sessiond)" ]; then
  40                 local str_date=$(date +%H%M%S-%d%m%Y)
  41
  42                 diag "!!!The session daemon died unexpectedly!!!"
  43                 mv $LOG_FILE $LOG_FILE-$str_date
  44                 if [ -e $COREDUMP_FILE ]; then
  45                         mv $COREDUMP_FILE $COREDUMP_FILE-$str_date
  46                 fi
  47                 exit 1
  48         fi
  49 }
  50
  51 function start_sessiond()
  52 {
  53         validate_kernel_version
  54         if [ $? -ne 0 ]; then
  55                 fail "Start session daemon"
  56                 BAIL_OUT "*** Kernel too old for session daemon tests ***"
  57         fi
  58
  59         if [ -z $(lttng_pgrep lt-$SESSIOND_BIN) ]; then
  60                 # We have to start it like this so the ulimit -c is used by this
  61                 # process. Also, we collect any error message printed out.
  62                 $TESTDIR/../src/bin/lttng-sessiond/$SESSIOND_BIN --quiet --background --consumerd32-path="$TESTDIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$TESTDIR/../src/bin/lttng-consumerd/lttng-consumerd" >$LOG_FILE 2>&1
  63                 status=$?
  64                 ok $status "Start session daemon"
  65         fi
  66 }
  67
  68 test_stress()
  69 {
  70         for b in $(seq 1 $NR_LOOP); do
  71                 for a in $(seq 1 $NR_SESSION); do
  72                         create_lttng_session_ok $SESSION_NAME-$a $TRACE_PATH
  73                         check_sessiond
  74                         enable_channel_per_uid $SESSION_NAME-$a $CHANNEL_NAME
  75                         check_sessiond
  76                         enable_ust_lttng_event_ok $SESSION_NAME-$a $EVENT_NAME
  77                         check_sessiond
  78                         start_lttng_tracing_ok $SESSION_NAME-$a
  79                         check_sessiond
  80                 done
  81
  82                 for a in $(seq 1 $NR_SESSION); do
  83                         stop_lttng_tracing_ok $SESSION_NAME-$a
  84                         check_sessiond
  85                         destroy_lttng_session_ok $SESSION_NAME-$a
  86                         check_sessiond
  87                 done
  88         done
  89
  90         return 0
  91 }
  92
  93 function cleanup()
  94 {
  95         diag "Cleaning up!"
  96         for p in ${APPS_PID}; do
  97                 kill -s SIGKILL ${p}
  98                 wait ${p} 2>/dev/null
  99         done
 100         APPS_PID=
 101         stop_lttng_sessiond
 102 }
 103
 104 function sighandler()
 105 {
 106         cleanup
 107         rm $LOG_FILE
 108         full_cleanup
 109 }
 110
 111 trap sighandler SIGINT SIGTERM
 112
 113 # Make sure we collect a coredump if possible.
 114 ulimit -c unlimited
 115
 116 # MUST set TESTDIR before calling those functions
 117 plan_tests $NUM_TESTS
 118
 119 print_test_banner "$TEST_DESC"
 120
 121 start_sessiond
 122
 123 diag "Starting applications"
 124
 125 # Start NR_APP applications script that will spawn apps non stop.
 126 ./$TESTDIR/stress/$LAUNCH_APP $NR_APP &
 127 APPS_PID="${APPS_PID} ${!}"
 128
 129 TRACE_PATH=$(mktemp -d)
 130
 131 test_stress
 132 out=$?
 133 if [ $out -ne 0 ]; then
 134         cleanup
 135         exit $out
 136 fi
 137
 138 cleanup
 139 rm -rf $TRACE_PATH
 140 rm $LOG_FILE
 141 exit 0