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=59
  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 test_after_multiple_apps() {
  49         local out
  50         local i
  51
  52         diag "Start multiple applications AFTER tracing is started"
  53
  54         # BEFORE application is spawned
  55         create_lttng_session $SESSION_NAME $TRACE_PATH
  56         enable_channel_per_pid $SESSION_NAME "channel0"
  57         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
  58         start_lttng_tracing $SESSION_NAME
  59
  60         for i in `seq 1 5`; do
  61                 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1
  62                 ok $? "Start application $i for tracing"
  63         done
  64
  65         stop_lttng_tracing $SESSION_NAME
  66         destroy_lttng_session $SESSION_NAME
  67
  68         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
  69
  70         return $?
  71 }
  72
  73 test_before_multiple_apps() {
  74         local out
  75         local i
  76
  77         diag "Start multiple applications BEFORE tracing is started"
  78
  79         for i in `seq 1 5`; do
  80                 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT & >/dev/null 2>&1
  81                 ok $? "Start application $i for tracing"
  82         done
  83
  84         # BEFORE application is spawned
  85         create_lttng_session $SESSION_NAME $TRACE_PATH
  86         enable_channel_per_pid $SESSION_NAME "channel0"
  87         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
  88         start_lttng_tracing $SESSION_NAME
  89
  90         diag "Waiting for applications to end"
  91         wait
  92         pass "Waiting done"
  93
  94         stop_lttng_tracing $SESSION_NAME
  95         destroy_lttng_session $SESSION_NAME
  96
  97         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
  98         if [ $out -eq 0 ]; then
  99                 fail "Trace validation"
 100                 diag "No event(s) found. We are supposed to have at least one."
 101                 out=1
 102         else
 103                 pass "Trace validation"
 104                 diag "Found $out event(s). Coherent."
 105                 out=0
 106         fi
 107
 108         return $out
 109 }
 110
 111 test_after_app() {
 112         local out
 113
 114         diag "Start application AFTER tracing is started"
 115
 116         # BEFORE application is spawned
 117         create_lttng_session $SESSION_NAME $TRACE_PATH
 118         enable_channel_per_pid $SESSION_NAME "channel0"
 119         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 120         start_lttng_tracing $SESSION_NAME
 121
 122         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 123         ok $? "Start application to trace"
 124
 125         stop_lttng_tracing $SESSION_NAME
 126         destroy_lttng_session $SESSION_NAME
 127
 128         trace_match_only $EVENT_NAME $NR_ITER $TRACE_PATH
 129
 130         return $?
 131 }
 132
 133 test_before_app() {
 134         local out
 135
 136         diag "Start application BEFORE tracing is started"
 137
 138
 139         # BEFORE application is spawned
 140         create_lttng_session $SESSION_NAME $TRACE_PATH
 141         enable_channel_per_pid $SESSION_NAME "channel0"
 142         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 143
 144         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 145         ok $? "Start application to trace"
 146
 147         start_lttng_tracing $SESSION_NAME
 148
 149         wait ${!}
 150
 151         stop_lttng_tracing $SESSION_NAME
 152         destroy_lttng_session $SESSION_NAME
 153
 154         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 155         if [ $out -eq 0 ]; then
 156                 fail "Trace validation"
 157                 diag "No event(s) found. We are supposed to have at least one."
 158                 out=1
 159         else
 160                 pass "Trace validation"
 161                 diag "Found $out event(s). Coherent."
 162                 out=0
 163         fi
 164
 165         return $out
 166 }
 167
 168 test_multiple_channels() {
 169         local out
 170
 171         diag "Start with multiple channels"
 172
 173         # BEFORE application is spawned
 174         create_lttng_session $SESSION_NAME $TRACE_PATH
 175         enable_channel_per_pid $SESSION_NAME "channel0"
 176         enable_channel_per_pid $SESSION_NAME "channel1"
 177         enable_channel_per_pid $SESSION_NAME "channel2"
 178         enable_channel_per_pid $SESSION_NAME "channel3"
 179         enable_channel_per_pid $SESSION_NAME "channel4"
 180         # Enable event in all channels.
 181         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel0 -s $SESSION_NAME -u >/dev/null 2>&1
 182         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel0"
 183         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel1 -s $SESSION_NAME -u >/dev/null 2>&1
 184         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel1"
 185         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel2 -s $SESSION_NAME -u >/dev/null 2>&1
 186         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel2"
 187         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel3 -s $SESSION_NAME -u >/dev/null 2>&1
 188         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel3"
 189         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel4 -s $SESSION_NAME -u >/dev/null 2>&1
 190         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel4"
 191         start_lttng_tracing $SESSION_NAME
 192
 193         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 194         ok $? "Start application to trace"
 195
 196         stop_lttng_tracing $SESSION_NAME
 197         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
 198         out=$?
 199
 200         destroy_lttng_session $SESSION_NAME
 201
 202         return $out
 203 }
 204
 205 # MUST set TESTDIR before calling those functions
 206 plan_tests $NUM_TESTS
 207
 208 print_test_banner "$TEST_DESC"
 209
 210 TESTS=(
 211         "test_before_app"
 212         "test_after_app"
 213         "test_after_multiple_apps"
 214         "test_before_multiple_apps"
 215         "test_multiple_channels"
 216 )
 217
 218 TEST_COUNT=${#TESTS[@]}
 219 i=0
 220
 221 start_lttng_sessiond
 222
 223 while [ $i -lt $TEST_COUNT ]; do
 224         TRACE_PATH=$(mktemp -d)
 225         ${TESTS[$i]}
 226         rm -rf $TRACE_PATH
 227         let "i++"
 228 done
 229
 230 stop_lttng_sessiond