tests/regression/ust/buffers-pid/test_buffers_pid

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2012 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 #
   9 # This library is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  11 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
  12 # details.
  13 #
  14 # You should have received a copy of the GNU Lesser General Public License
  15 # along with this library; if not, write to the Free Software Foundation, Inc.,
  16 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  17 TEST_DESC="UST tracer - Tracing with per PID buffers"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 NR_ITER=100
  22 NR_USEC_WAIT=100000
  23 SESSION_NAME="buffers-pid"
  24
  25 TESTAPP_PATH="$TESTDIR/utils/testapp"
  26 TESTAPP_NAME="gen-ust-events"
  27 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  28 EVENT_NAME="tp:tptest"
  29 NUM_TESTS=58
  30
  31 source $TESTDIR/utils/utils.sh
  32
  33 if [ ! -x "$TESTAPP_BIN" ]; then
  34         BAIL_OUT "No UST events binary detected."
  35 fi
  36
  37 # MUST set TESTDIR before calling those functions
  38
  39 function enable_channel_per_pid()
  40 {
  41         sess_name=$1
  42         channel_name=$2
  43
  44         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-pid -u $channel_name -s $sess_name >/dev/null 2>&1
  45         ok $? "Enable channel $channel_name per PID for session $sess_name"
  46 }
  47
  48 function wait_apps
  49 {
  50         diag "Waiting for applications to end..."
  51         while [ -n "$(pidof $TESTAPP_NAME)" ]; do
  52                 sleep 1
  53         done
  54 }
  55
  56 test_after_multiple_apps() {
  57         local out
  58         local i
  59
  60         diag "Start multiple applications AFTER tracing is started"
  61
  62         # BEFORE application is spawned
  63         create_lttng_session $SESSION_NAME $TRACE_PATH
  64         enable_channel_per_pid $SESSION_NAME "channel0"
  65         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
  66         start_lttng_tracing $SESSION_NAME
  67
  68         for i in `seq 1 5`; do
  69                 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1
  70                 ok $? "Start application $i for tracing"
  71         done
  72
  73         stop_lttng_tracing $SESSION_NAME
  74         destroy_lttng_session $SESSION_NAME
  75
  76         trace_matches $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
  77
  78         return $?
  79 }
  80
  81 test_before_multiple_apps() {
  82         local out
  83         local i
  84
  85         diag "Start multiple applications BEFORE tracing is started"
  86
  87         for i in `seq 1 5`; do
  88                 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT & >/dev/null 2>&1
  89                 ok $? "Start application $i for tracing"
  90         done
  91
  92         # BEFORE application is spawned
  93         create_lttng_session $SESSION_NAME $TRACE_PATH
  94         enable_channel_per_pid $SESSION_NAME "channel0"
  95         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
  96         start_lttng_tracing $SESSION_NAME
  97
  98         # At least hit one event
  99         sleep 2
 100
 101         stop_lttng_tracing $SESSION_NAME
 102         destroy_lttng_session $SESSION_NAME
 103
 104         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 105         if [ $out -eq 0 ]; then
 106                 fail "Trace validation"
 107                 diag "No event(s) found. We are supposed to have at least one."
 108                 out=1
 109         else
 110                 pass "Trace validation"
 111                 diag "Found $out event(s). Coherent."
 112                 out=0
 113         fi
 114
 115         wait_apps
 116
 117         return $out
 118 }
 119
 120 test_after_app() {
 121         local out
 122
 123         diag "Start application AFTER tracing is started"
 124
 125         # BEFORE application is spawned
 126         create_lttng_session $SESSION_NAME $TRACE_PATH
 127         enable_channel_per_pid $SESSION_NAME "channel0"
 128         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 129         start_lttng_tracing $SESSION_NAME
 130
 131         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 132         ok $? "Start application to trace"
 133
 134         stop_lttng_tracing $SESSION_NAME
 135         destroy_lttng_session $SESSION_NAME
 136
 137         trace_matches $EVENT_NAME $NR_ITER $TRACE_PATH
 138
 139         return $?
 140 }
 141
 142 test_before_app() {
 143         local out
 144
 145         diag "Start application BEFORE tracing is started"
 146
 147         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 148         ok $? "Start application to trace"
 149
 150         # BEFORE application is spawned
 151         create_lttng_session $SESSION_NAME $TRACE_PATH
 152         enable_channel_per_pid $SESSION_NAME "channel0"
 153         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 154         start_lttng_tracing $SESSION_NAME
 155
 156         # At least hit one event
 157         sleep 2
 158
 159         stop_lttng_tracing $SESSION_NAME
 160         destroy_lttng_session $SESSION_NAME
 161
 162         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 163         if [ $out -eq 0 ]; then
 164                 fail "Trace validation"
 165                 diag "No event(s) found. We are supposed to have at least one."
 166                 out=1
 167         else
 168                 pass "Trace validation"
 169                 diag "Found $out event(s). Coherent."
 170                 out=0
 171         fi
 172
 173         wait_apps
 174
 175         return $out
 176 }
 177
 178 test_multiple_channels() {
 179         local out
 180
 181         diag "Start with multiple channels"
 182
 183         # BEFORE application is spawned
 184         create_lttng_session $SESSION_NAME $TRACE_PATH
 185         enable_channel_per_pid $SESSION_NAME "channel0"
 186         enable_channel_per_pid $SESSION_NAME "channel1"
 187         enable_channel_per_pid $SESSION_NAME "channel2"
 188         enable_channel_per_pid $SESSION_NAME "channel3"
 189         enable_channel_per_pid $SESSION_NAME "channel4"
 190         # Enable event in all channels.
 191         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel0 -s $SESSION_NAME -u >/dev/null 2>&1
 192         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel0"
 193         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel1 -s $SESSION_NAME -u >/dev/null 2>&1
 194         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel1"
 195         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel2 -s $SESSION_NAME -u >/dev/null 2>&1
 196         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel2"
 197         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel3 -s $SESSION_NAME -u >/dev/null 2>&1
 198         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel3"
 199         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel4 -s $SESSION_NAME -u >/dev/null 2>&1
 200         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel4"
 201         start_lttng_tracing $SESSION_NAME
 202
 203         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 204         ok $? "Start application to trace"
 205
 206         stop_lttng_tracing $SESSION_NAME
 207         trace_matches $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
 208         out=$?
 209
 210         destroy_lttng_session $SESSION_NAME
 211
 212         return $out
 213 }
 214
 215 # MUST set TESTDIR before calling those functions
 216 plan_tests $NUM_TESTS
 217
 218 print_test_banner "$TEST_DESC"
 219
 220 TESTS=(
 221         "test_before_app"
 222         "test_after_app"
 223         "test_after_multiple_apps"
 224         "test_before_multiple_apps"
 225         "test_multiple_channels"
 226 )
 227
 228 TEST_COUNT=${#TESTS[@]}
 229 i=0
 230
 231 start_lttng_sessiond
 232
 233 while [ $i -lt $TEST_COUNT ]; do
 234         TRACE_PATH=$(mktemp -d)
 235         ${TESTS[$i]}
 236         rm -rf $TRACE_PATH
 237         let "i++"
 238 done
 239
 240 stop_lttng_sessiond