tests/regression/ust/periodical-metadata-flush/test_periodical_metadata_flush

   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 UID buffers and periodical flush"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 NR_ITER=100
  22 NR_USEC_WAIT=100000
  23 TESTAPP_PATH="$TESTDIR/utils/testapp"
  24 TESTAPP_NAME="gen-ust-events"
  25 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  26 SESSION_NAME="periodical-flush"
  27 EVENT_NAME="tp:tptest"
  28 BIN_NAME="gen-nevents"
  29 NUM_TESTS=38
  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_uid()
  40 {
  41         local sess_name=$1
  42         local channel_name=$2
  43
  44         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --switch-timer 100000 >/dev/null 2>&1
  45         ok $? "Enable channel $channel_name per UID for session $sess_name"
  46 }
  47
  48 function enable_channel_per_pid()
  49 {
  50         local sess_name=$1
  51         local channel_name=$2
  52
  53         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-pid -u $channel_name -s $sess_name --switch-timer 100000 >/dev/null 2>&1
  54         ok $? "Enable channel $channel_name per UID for session $sess_name"
  55 }
  56
  57 function enable_metadata_per_uid()
  58 {
  59         local sess_name=$1
  60         local channel_name="metadata"
  61
  62         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --switch-timer 200000 >/dev/null 2>&1
  63         ok $? "Enable channel $channel_name per UID for session $sess_name"
  64 }
  65
  66 function enable_metadata_per_pid()
  67 {
  68         local sess_name=$1
  69         local channel_name="metadata"
  70
  71         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-pid -u $channel_name -s $sess_name --switch-timer 200000 >/dev/null 2>&1
  72         ok $? "Enable channel $channel_name per PID for session $sess_name"
  73 }
  74
  75 function wait_apps
  76 {
  77         diag "Waiting for applications to end..."
  78         while [ -n "$(pidof $TESTAPP_NAME)" ]; do
  79                 sleep 1
  80         done
  81 }
  82
  83 function validate_trace()
  84 {
  85         local out
  86
  87         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
  88         if [ $out -eq 0 ]; then
  89                 fail "Trace validation"
  90                 diag "No event(s) found. We are supposed to have at least one."
  91                 out=1
  92         else
  93                 pass "Trace validation"
  94                 diag "Found $out event(s). Coherent."
  95                 out=0
  96         fi
  97
  98         return $out
  99 }
 100
 101 test_after_app_pid() {
 102         local out
 103
 104         diag "Start application AFTER tracing is started"
 105
 106         create_lttng_session $SESSION_NAME $TRACE_PATH
 107         enable_metadata_per_pid $SESSION_NAME
 108         enable_channel_per_pid $SESSION_NAME "channel0"
 109         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 110         start_lttng_tracing $SESSION_NAME
 111
 112         # Start application after tracing
 113         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 114         ok $? "Start application to trace"
 115
 116         # At least hit one event
 117         sleep 2
 118
 119         # Make sure the application does not generate any more data,
 120         # thus ensuring that we are not flushing a packet concurrently
 121         # with validate_trace.
 122         killall -q $TESTAPP_NAME
 123         sleep 2
 124
 125         validate_trace
 126         out=$?
 127
 128         stop_lttng_tracing $SESSION_NAME
 129         destroy_lttng_session $SESSION_NAME
 130
 131         return $out
 132 }
 133
 134 test_before_app_pid() {
 135         local out
 136
 137         diag "Start application BEFORE tracing is started"
 138
 139         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 140         ok $? "Start application to trace"
 141
 142         # Start application before tracing
 143         create_lttng_session $SESSION_NAME $TRACE_PATH
 144         enable_metadata_per_pid $SESSION_NAME
 145         enable_channel_per_pid $SESSION_NAME "channel0"
 146         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 147         start_lttng_tracing $SESSION_NAME
 148
 149         # At least hit one event
 150         sleep 2
 151
 152         # Make sure the application does not generate any more data,
 153         # thus ensuring that we are not flushing a packet concurrently
 154         # with validate_trace.
 155         killall -q $TESTAPP_NAME
 156         sleep 2
 157
 158         validate_trace
 159         out=$?
 160
 161         stop_lttng_tracing $SESSION_NAME
 162         destroy_lttng_session $SESSION_NAME
 163
 164         wait_apps
 165
 166         return $out
 167 }
 168
 169 test_after_app_uid() {
 170         local out
 171
 172         diag "Start application AFTER tracing is started"
 173
 174         create_lttng_session $SESSION_NAME $TRACE_PATH
 175         enable_metadata_per_uid $SESSION_NAME
 176         enable_channel_per_uid $SESSION_NAME "channel0"
 177         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 178         start_lttng_tracing $SESSION_NAME
 179
 180         # Start application after tracing
 181         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 182         ok $? "Start application to trace"
 183
 184         # At least hit one event
 185         sleep 2
 186
 187         # Make sure the application does not generate any more data,
 188         # thus ensuring that we are not flushing a packet concurrently
 189         # with validate_trace.
 190         killall -q $TESTAPP_NAME
 191         sleep 2
 192
 193         validate_trace
 194         out=$?
 195
 196         stop_lttng_tracing $SESSION_NAME
 197         destroy_lttng_session $SESSION_NAME
 198
 199         return $out
 200 }
 201
 202 test_before_app_uid() {
 203         local out
 204
 205         diag "Start application BEFORE tracing is started"
 206
 207         # Start application after tracing
 208         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 209         ok $? "Start application to trace"
 210
 211         create_lttng_session $SESSION_NAME $TRACE_PATH
 212         enable_metadata_per_uid $SESSION_NAME
 213         enable_channel_per_uid $SESSION_NAME "channel0"
 214         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 215         start_lttng_tracing $SESSION_NAME
 216
 217         # At least hit one event
 218         sleep 2
 219
 220         # Make sure the application does not generate any more data,
 221         # thus ensuring that we are not flushing a packet concurrently
 222         # with validate_trace.
 223         killall -q $TESTAPP_NAME
 224         sleep 2
 225
 226         validate_trace
 227         out=$?
 228
 229         stop_lttng_tracing $SESSION_NAME
 230         destroy_lttng_session $SESSION_NAME
 231
 232         wait_apps
 233
 234         return $out
 235 }
 236
 237 # MUST set TESTDIR before calling those functions
 238 plan_tests $NUM_TESTS
 239
 240 print_test_banner "$TEST_DESC"
 241
 242 TESTS=(
 243         "test_before_app_uid"
 244         "test_after_app_uid"
 245         "test_before_app_pid"
 246         "test_after_app_pid"
 247 )
 248
 249 TEST_COUNT=${#TESTS[@]}
 250 i=0
 251
 252 start_lttng_sessiond
 253
 254 while [ $i -lt $TEST_COUNT ]; do
 255         TRACE_PATH=$(mktemp -d)
 256         ${TESTS[$i]}
 257         #rm -rf $TRACE_PATH
 258         let "i++"
 259 done
 260
 261 stop_lttng_sessiond