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 >/dev/null 2>&1
  45         ok $? "Enable channel $channel_name per UID for session $sess_name"
  46 }
  47
  48 function enable_metadata_per_uid()
  49 {
  50         local sess_name=$1
  51         local channel_name="metadata"
  52
  53         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --switch-timer 200000 >/dev/null 2>&1
  54         ok $? "Enable channel $channel_name per UID for session $sess_name"
  55 }
  56
  57 function enable_metadata_per_pid()
  58 {
  59         local sess_name=$1
  60         local channel_name="metadata"
  61
  62         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-pid -u $channel_name -s $sess_name --switch-timer 200000 >/dev/null 2>&1
  63         ok $? "Enable channel $channel_name per PID for session $sess_name"
  64 }
  65
  66 function wait_apps
  67 {
  68         diag "Waiting for applications to end..."
  69         while [ -n "$(pidof $TESTAPP_NAME)" ]; do
  70                 sleep 1
  71         done
  72 }
  73
  74 test_after_app_pid() {
  75         local out
  76
  77         diag "Start application AFTER tracing is started"
  78
  79         # BEFORE application is spawned
  80         create_lttng_session $SESSION_NAME $TRACE_PATH
  81         enable_metadata_per_pid $SESSION_NAME
  82         enable_ust_lttng_channel $SESSION_NAME "channel0"
  83         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  84         start_lttng_tracing $SESSION_NAME
  85
  86         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
  87         ok $? "Start application to trace"
  88
  89         stop_lttng_tracing $SESSION_NAME
  90         destroy_lttng_session $SESSION_NAME
  91
  92         trace_matches $EVENT_NAME $NR_ITER $TRACE_PATH
  93
  94         return $?
  95 }
  96
  97 test_before_app_pid() {
  98         local out
  99
 100         diag "Start application BEFORE tracing is started"
 101
 102         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 103         ok $? "Start application to trace"
 104
 105         # BEFORE application is spawned
 106         create_lttng_session $SESSION_NAME $TRACE_PATH
 107         enable_metadata_per_pid $SESSION_NAME
 108         enable_ust_lttng_channel $SESSION_NAME "channel0"
 109         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 110         start_lttng_tracing $SESSION_NAME
 111
 112         # At least hit one event
 113         sleep 2
 114
 115         stop_lttng_tracing $SESSION_NAME
 116         destroy_lttng_session $SESSION_NAME
 117
 118         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 119         if [ $out -eq 0 ]; then
 120                 fail "Trace validation"
 121                 diag "No event(s) found. We are supposed to have at least one."
 122                 out=1
 123         else
 124                 pass "Trace validation"
 125                 diag "Found $out event(s). Coherent."
 126                 out=0
 127         fi
 128
 129         wait_apps
 130
 131         return $out
 132 }
 133
 134 test_after_app_uid() {
 135         local out
 136
 137         diag "Start application AFTER tracing is started"
 138
 139         # BEFORE application is spawned
 140         create_lttng_session $SESSION_NAME $TRACE_PATH
 141         enable_metadata_per_uid $SESSION_NAME
 142         enable_channel_per_uid $SESSION_NAME "channel0"
 143         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 144         start_lttng_tracing $SESSION_NAME
 145
 146         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT
 147         ok $? "Start application to trace"
 148
 149         stop_lttng_tracing $SESSION_NAME
 150         destroy_lttng_session $SESSION_NAME
 151
 152         trace_matches $EVENT_NAME $NR_ITER $TRACE_PATH
 153
 154         return $?
 155 }
 156
 157 test_before_app_uid() {
 158         local out
 159
 160         diag "Start application BEFORE tracing is started"
 161
 162         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
 163         ok $? "Start application to trace"
 164
 165         # BEFORE application is spawned
 166         create_lttng_session $SESSION_NAME $TRACE_PATH
 167         enable_metadata_per_uid $SESSION_NAME
 168         enable_channel_per_uid $SESSION_NAME "channel0"
 169         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 170         start_lttng_tracing $SESSION_NAME
 171
 172         # At least hit one event
 173         sleep 2
 174
 175         stop_lttng_tracing $SESSION_NAME
 176         destroy_lttng_session $SESSION_NAME
 177
 178         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 179         if [ $out -eq 0 ]; then
 180                 fail "Trace validation"
 181                 diag "No event(s) found. We are supposed to have at least one."
 182                 out=1
 183         else
 184                 pass "Trace validation"
 185                 diag "Found $out event(s). Coherent."
 186                 out=0
 187         fi
 188
 189         wait_apps
 190
 191         return $out
 192 }
 193
 194 # MUST set TESTDIR before calling those functions
 195 plan_tests $NUM_TESTS
 196
 197 print_test_banner "$TEST_DESC"
 198
 199 TESTS=(
 200         "test_before_app_uid"
 201         "test_after_app_uid"
 202         "test_before_app_pid"
 203         "test_after_app_pid"
 204 )
 205
 206 TEST_COUNT=${#TESTS[@]}
 207 i=0
 208
 209 start_lttng_sessiond
 210
 211 while [ $i -lt $TEST_COUNT ]; do
 212         TRACE_PATH=$(mktemp -d)
 213         ${TESTS[$i]}
 214         #rm -rf $TRACE_PATH
 215         let "i++"
 216 done
 217
 218 stop_lttng_sessiond