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 1000000 >/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 1000000 >/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         # BEFORE application is spawned
 107         create_lttng_session $SESSION_NAME $TRACE_PATH
 108         enable_metadata_per_pid $SESSION_NAME
 109         enable_channel_per_pid $SESSION_NAME "channel0"
 110         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 111         start_lttng_tracing $SESSION_NAME
 112
 113         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 114         ok $? "Start application to trace"
 115
 116         # At least hit one event
 117         sleep 2
 118         validate_trace
 119         out=$?
 120
 121         stop_lttng_tracing $SESSION_NAME
 122         destroy_lttng_session $SESSION_NAME
 123
 124         return $out
 125 }
 126
 127 test_before_app_pid() {
 128         local out
 129
 130         diag "Start application BEFORE tracing is started"
 131
 132         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 133         ok $? "Start application to trace"
 134
 135         # BEFORE application is spawned
 136         create_lttng_session $SESSION_NAME $TRACE_PATH
 137         enable_metadata_per_pid $SESSION_NAME
 138         enable_channel_per_pid $SESSION_NAME "channel0"
 139         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 140         start_lttng_tracing $SESSION_NAME
 141
 142         # At least hit one event
 143         sleep 2
 144         validate_trace
 145         out=$?
 146
 147         stop_lttng_tracing $SESSION_NAME
 148         destroy_lttng_session $SESSION_NAME
 149
 150         wait_apps
 151
 152         return $out
 153 }
 154
 155 test_after_app_uid() {
 156         local out
 157
 158         diag "Start application AFTER tracing is started"
 159
 160         # BEFORE application is spawned
 161         create_lttng_session $SESSION_NAME $TRACE_PATH
 162         enable_metadata_per_uid $SESSION_NAME
 163         enable_channel_per_uid $SESSION_NAME "channel0"
 164         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 165         start_lttng_tracing $SESSION_NAME
 166
 167         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 168         ok $? "Start application to trace"
 169
 170         # At least hit one event
 171         sleep 2
 172         validate_trace
 173         out=$?
 174
 175         stop_lttng_tracing $SESSION_NAME
 176         destroy_lttng_session $SESSION_NAME
 177
 178         return $out
 179 }
 180
 181 test_before_app_uid() {
 182         local out
 183
 184         diag "Start application BEFORE tracing is started"
 185
 186         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 187         ok $? "Start application to trace"
 188
 189         # BEFORE application is spawned
 190         create_lttng_session $SESSION_NAME $TRACE_PATH
 191         enable_metadata_per_uid $SESSION_NAME
 192         enable_channel_per_uid $SESSION_NAME "channel0"
 193         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME "channel0"
 194         start_lttng_tracing $SESSION_NAME
 195
 196         # At least hit one event
 197         sleep 2
 198         validate_trace
 199         out=$?
 200
 201         stop_lttng_tracing $SESSION_NAME
 202         destroy_lttng_session $SESSION_NAME
 203
 204         wait_apps
 205
 206         return $out
 207 }
 208
 209 # MUST set TESTDIR before calling those functions
 210 plan_tests $NUM_TESTS
 211
 212 print_test_banner "$TEST_DESC"
 213
 214 TESTS=(
 215         "test_before_app_uid"
 216         "test_after_app_uid"
 217         "test_before_app_pid"
 218         "test_after_app_pid"
 219 )
 220
 221 TEST_COUNT=${#TESTS[@]}
 222 i=0
 223
 224 start_lttng_sessiond
 225
 226 while [ $i -lt $TEST_COUNT ]; do
 227         TRACE_PATH=$(mktemp -d)
 228         ${TESTS[$i]}
 229         #rm -rf $TRACE_PATH
 230         let "i++"
 231 done
 232
 233 stop_lttng_sessiond