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 APP_PIDS=()
  21
  22 TEST_DESC="Stress test - $NR_SESSION sessions per UID with $NR_APP apps"
  23
  24 # shellcheck source-path=SCRIPTDIR/../
  25 source "$TESTDIR/utils/utils.sh"
  26
  27 # MUST set TESTDIR before calling those functions
  28
  29 function enable_channel_per_uid()
  30 {
  31         local sess_name=$1
  32         local channel_name=$2
  33
  34         "$TESTDIR/../src/bin/lttng/$LTTNG_BIN" enable-channel --buffers-uid -u "$channel_name" -s "$sess_name" >/dev/null 2>&1
  35         ok $? "Enable channel $channel_name per UID for session $sess_name"
  36 }
  37
  38 function check_sessiond()
  39 {
  40         local str_date=''
  41         if [ -z "$(lttng_pgrep lttng-sessiond)" ]; then
  42                 str_date=$(date +%H%M%S-%d%m%Y)
  43
  44                 diag "!!!The session daemon died unexpectedly!!!"
  45                 mv $LOG_FILE "$LOG_FILE-$str_date"
  46                 if [ -e "$COREDUMP_FILE" ]; then
  47                         mv "$COREDUMP_FILE" "$COREDUMP_FILE-$str_date"
  48                 fi
  49                 exit 1
  50         fi
  51 }
  52
  53 function start_sessiond()
  54 {
  55         if ! validate_kernel_version ; then
  56                 fail "Start session daemon"
  57                 BAIL_OUT "*** Kernel too old for session daemon tests ***"
  58         fi
  59
  60         if [ -z "$(lttng_pgrep $SESSIOND_BIN)" ]; then
  61                 # We have to start it like this so the ulimit -c is used by this
  62                 # process. Also, we collect any error message printed out.
  63                 "$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
  64                 status=$?
  65                 ok $status "Start session daemon"
  66         fi
  67 }
  68
  69 test_stress()
  70 {
  71         # shellcheck disable=SC2034
  72         for b in $(seq 1 $NR_LOOP); do
  73                 for a in $(seq 1 $NR_SESSION); do
  74                         create_lttng_session_ok $SESSION_NAME-"$a" "$TRACE_PATH"
  75                         check_sessiond
  76                         enable_channel_per_uid $SESSION_NAME-"$a" $CHANNEL_NAME
  77                         check_sessiond
  78                         enable_ust_lttng_event_ok $SESSION_NAME-"$a" $EVENT_NAME
  79                         check_sessiond
  80                         start_lttng_tracing_ok $SESSION_NAME-"$a"
  81                         check_sessiond
  82                 done
  83
  84                 for a in $(seq 1 $NR_SESSION); do
  85                         stop_lttng_tracing_ok $SESSION_NAME-"$a"
  86                         check_sessiond
  87                         destroy_lttng_session_ok $SESSION_NAME-"$a"
  88                         check_sessiond
  89                 done
  90         done
  91
  92         return 0
  93 }
  94
  95 function cleanup()
  96 {
  97         diag "Cleaning up!"
  98         kill -s SIGKILL "${APP_PIDS[@]}"
  99         wait "${APP_PIDS[@]}" 2>/dev/null
 100         APP_PIDS=()
 101         # shellcheck disable=SC2119
 102         stop_lttng_sessiond
 103 }
 104
 105 function sighandler()
 106 {
 107         cleanup
 108         rm "$LOG_FILE"
 109         full_cleanup
 110 }
 111
 112 trap sighandler SIGINT SIGTERM
 113
 114 # Make sure we collect a coredump if possible.
 115 ulimit -c unlimited
 116
 117 # MUST set TESTDIR before calling those functions
 118 plan_tests $NUM_TESTS
 119
 120 print_test_banner "$TEST_DESC"
 121
 122 start_sessiond
 123
 124 diag "Starting applications"
 125
 126 # Start NR_APP applications script that will spawn apps non stop.
 127 "./$TESTDIR/stress/$LAUNCH_APP" $NR_APP &
 128 APP_PIDS+=(${!})
 129
 130 TRACE_PATH=$(mktemp -d -t tmp.test_multi_sess_per_uid_10app.XXXXXX)
 131
 132 test_stress
 133 out=$?
 134 if [ $out -ne 0 ]; then
 135         cleanup
 136         exit $out
 137 fi
 138
 139 cleanup
 140 rm -rf "${TRACE_PATH:?}/"
 141 rm $LOG_FILE
 142 exit 0