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         wait
  65
  66         stop_lttng_tracing $SESSION_NAME
  67         destroy_lttng_session $SESSION_NAME
  68
  69         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
  70
  71         return $?
  72 }
  73
  74 test_before_multiple_apps() {
  75         local out
  76         local i
  77
  78         diag "Start multiple applications BEFORE tracing is started"
  79
  80         for i in `seq 1 5`; do
  81                 $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1 &
  82                 ok $? "Start application $i for tracing"
  83         done
  84
  85         #FIXME: racy missing synchronization
  86
  87         # BEFORE application is spawned
  88         create_lttng_session $SESSION_NAME $TRACE_PATH
  89         enable_channel_per_pid $SESSION_NAME "channel0"
  90         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
  91         start_lttng_tracing $SESSION_NAME
  92
  93         diag "Waiting for applications to end"
  94         wait
  95         pass "Waiting done"
  96
  97         stop_lttng_tracing $SESSION_NAME
  98         destroy_lttng_session $SESSION_NAME
  99
 100         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 101         if [ $out -eq 0 ]; then
 102                 fail "Trace validation"
 103                 diag "No event(s) found. We are supposed to have at least one."
 104                 out=1
 105         else
 106                 pass "Trace validation"
 107                 diag "Found $out event(s). Coherent."
 108                 out=0
 109         fi
 110
 111         return $out
 112 }
 113
 114 test_after_app() {
 115         local out
 116
 117         diag "Start application AFTER tracing is started"
 118
 119         # BEFORE application is spawned
 120         create_lttng_session $SESSION_NAME $TRACE_PATH
 121         enable_channel_per_pid $SESSION_NAME "channel0"
 122         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 123         start_lttng_tracing $SESSION_NAME
 124
 125         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 126         ok $? "Start application to trace"
 127         wait
 128
 129         stop_lttng_tracing $SESSION_NAME
 130         destroy_lttng_session $SESSION_NAME
 131
 132         trace_match_only $EVENT_NAME $NR_ITER $TRACE_PATH
 133
 134         return $?
 135 }
 136
 137 test_before_app() {
 138         local out
 139
 140         diag "Start application BEFORE tracing is started"
 141
 142
 143         # BEFORE application is spawned
 144         create_lttng_session $SESSION_NAME $TRACE_PATH
 145         enable_channel_per_pid $SESSION_NAME "channel0"
 146         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 147
 148         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 149         ok $? "Start application to trace"
 150
 151         #FIXME: racy missing synchronization
 152
 153         start_lttng_tracing $SESSION_NAME
 154
 155         wait
 156
 157         stop_lttng_tracing $SESSION_NAME
 158         destroy_lttng_session $SESSION_NAME
 159
 160         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 161         if [ $out -eq 0 ]; then
 162                 fail "Trace validation"
 163                 diag "No event(s) found. We are supposed to have at least one."
 164                 out=1
 165         else
 166                 pass "Trace validation"
 167                 diag "Found $out event(s). Coherent."
 168                 out=0
 169         fi
 170
 171         return $out
 172 }
 173
 174 test_multiple_channels() {
 175         local out
 176
 177         diag "Start with multiple channels"
 178
 179         # BEFORE application is spawned
 180         create_lttng_session $SESSION_NAME $TRACE_PATH
 181         enable_channel_per_pid $SESSION_NAME "channel0"
 182         enable_channel_per_pid $SESSION_NAME "channel1"
 183         enable_channel_per_pid $SESSION_NAME "channel2"
 184         enable_channel_per_pid $SESSION_NAME "channel3"
 185         enable_channel_per_pid $SESSION_NAME "channel4"
 186         # Enable event in all channels.
 187         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel0 -s $SESSION_NAME -u >/dev/null 2>&1
 188         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel0"
 189         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel1 -s $SESSION_NAME -u >/dev/null 2>&1
 190         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel1"
 191         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel2 -s $SESSION_NAME -u >/dev/null 2>&1
 192         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel2"
 193         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel3 -s $SESSION_NAME -u >/dev/null 2>&1
 194         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel3"
 195         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel4 -s $SESSION_NAME -u >/dev/null 2>&1
 196         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel4"
 197         start_lttng_tracing $SESSION_NAME
 198
 199         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 200         ok $? "Start application to trace"
 201         wait
 202
 203         stop_lttng_tracing $SESSION_NAME
 204         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
 205         out=$?
 206
 207         destroy_lttng_session $SESSION_NAME
 208
 209         return $out
 210 }
 211
 212 # MUST set TESTDIR before calling those functions
 213 plan_tests $NUM_TESTS
 214
 215 print_test_banner "$TEST_DESC"
 216
 217 TESTS=(
 218         "test_before_app"
 219         "test_after_app"
 220         "test_after_multiple_apps"
 221         "test_before_multiple_apps"
 222         "test_multiple_channels"
 223 )
 224
 225 TEST_COUNT=${#TESTS[@]}
 226 i=0
 227
 228 start_lttng_sessiond
 229
 230 while [ $i -lt $TEST_COUNT ]; do
 231         TRACE_PATH=$(mktemp -d)
 232         ${TESTS[$i]}
 233         rm -rf $TRACE_PATH
 234         let "i++"
 235 done
 236
 237 stop_lttng_sessiond