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 SESSION_NAME="periodical-flush"
  23 EVENT_NAME="ust_gen_nevents:tptest"
  24 BIN_NAME="gen-nevents"
  25 NUM_TESTS=38
  26
  27 source $TESTDIR/utils/utils.sh
  28
  29 if [ ! -x "$CURDIR/gen-nevents" ]; then
  30         BAIL_OUT "No UST nevents binary detected."
  31 fi
  32
  33 # MUST set TESTDIR before calling those functions
  34
  35 function enable_channel_per_uid()
  36 {
  37         local sess_name=$1
  38         local channel_name=$2
  39
  40         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name >/dev/null 2>&1
  41         ok $? "Enable channel $channel_name per UID for session $sess_name"
  42 }
  43
  44 function enable_metadata_per_uid()
  45 {
  46         local sess_name=$1
  47         local channel_name="metadata"
  48
  49         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --switch-timer 200000 >/dev/null 2>&1
  50         ok $? "Enable channel $channel_name per UID for session $sess_name"
  51 }
  52
  53 function enable_metadata_per_pid()
  54 {
  55         local sess_name=$1
  56         local channel_name="metadata"
  57
  58         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-pid -u $channel_name -s $sess_name --switch-timer 200000 >/dev/null 2>&1
  59         ok $? "Enable channel $channel_name per PID for session $sess_name"
  60 }
  61
  62 function wait_apps
  63 {
  64         diag "Waiting for applications to end..."
  65         while [ -n "$(pidof $BIN_NAME)" ]; do
  66                 sleep 1
  67         done
  68 }
  69
  70 test_after_app_pid() {
  71         local out
  72
  73         diag "Start application AFTER tracing is started"
  74
  75         # BEFORE application is spawned
  76         create_lttng_session $SESSION_NAME $TRACE_PATH
  77         enable_metadata_per_pid $SESSION_NAME
  78         enable_ust_lttng_channel $SESSION_NAME "channel0"
  79         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
  80         start_lttng_tracing $SESSION_NAME
  81
  82         ./$CURDIR/$BIN_NAME $NR_ITER
  83         ok $? "Start application to trace"
  84
  85         stop_lttng_tracing $SESSION_NAME
  86         destroy_lttng_session $SESSION_NAME
  87
  88         trace_matches $EVENT_NAME $NR_ITER $TRACE_PATH
  89
  90         return $?
  91 }
  92
  93 test_before_app_pid() {
  94         local out
  95
  96         diag "Start application BEFORE tracing is started"
  97
  98         ./$CURDIR/$BIN_NAME $NR_ITER &
  99         ok $? "Start application to trace"
 100
 101         # BEFORE application is spawned
 102         create_lttng_session $SESSION_NAME $TRACE_PATH
 103         enable_metadata_per_pid $SESSION_NAME
 104         enable_ust_lttng_channel $SESSION_NAME "channel0"
 105         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 106         start_lttng_tracing $SESSION_NAME
 107
 108         # At least hit one event
 109         sleep 2
 110
 111         stop_lttng_tracing $SESSION_NAME
 112         destroy_lttng_session $SESSION_NAME
 113
 114         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 115         if [ $out -eq 0 ]; then
 116                 fail "Trace validation"
 117                 diag "No event(s) found. We are supposed to have at least one."
 118                 out=1
 119         else
 120                 pass "Trace validation"
 121                 diag "Found $out event(s). Coherent."
 122                 out=0
 123         fi
 124
 125         wait_apps
 126
 127         return $out
 128 }
 129
 130 test_after_app_uid() {
 131         local out
 132
 133         diag "Start application AFTER tracing is started"
 134
 135         # BEFORE application is spawned
 136         create_lttng_session $SESSION_NAME $TRACE_PATH
 137         enable_metadata_per_uid $SESSION_NAME
 138         enable_channel_per_uid $SESSION_NAME "channel0"
 139         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 140         start_lttng_tracing $SESSION_NAME
 141
 142         ./$CURDIR/$BIN_NAME $NR_ITER
 143         ok $? "Start application to trace"
 144
 145         stop_lttng_tracing $SESSION_NAME
 146         destroy_lttng_session $SESSION_NAME
 147
 148         trace_matches $EVENT_NAME $NR_ITER $TRACE_PATH
 149
 150         return $?
 151 }
 152
 153 test_before_app_uid() {
 154         local out
 155
 156         diag "Start application BEFORE tracing is started"
 157
 158         ./$CURDIR/$BIN_NAME $NR_ITER &
 159         ok $? "Start application to trace"
 160
 161         # BEFORE application is spawned
 162         create_lttng_session $SESSION_NAME $TRACE_PATH
 163         enable_metadata_per_uid $SESSION_NAME
 164         enable_channel_per_uid $SESSION_NAME "channel0"
 165         enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 166         start_lttng_tracing $SESSION_NAME
 167
 168         # At least hit one event
 169         sleep 2
 170
 171         stop_lttng_tracing $SESSION_NAME
 172         destroy_lttng_session $SESSION_NAME
 173
 174         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 175         if [ $out -eq 0 ]; then
 176                 fail "Trace validation"
 177                 diag "No event(s) found. We are supposed to have at least one."
 178                 out=1
 179         else
 180                 pass "Trace validation"
 181                 diag "Found $out event(s). Coherent."
 182                 out=0
 183         fi
 184
 185         wait_apps
 186
 187         return $out
 188 }
 189
 190 # MUST set TESTDIR before calling those functions
 191 plan_tests $NUM_TESTS
 192
 193 print_test_banner "$TEST_DESC"
 194
 195 TESTS=(
 196         "test_before_app_uid"
 197         "test_after_app_uid"
 198         "test_before_app_pid"
 199         "test_after_app_pid"
 200 )
 201
 202 TEST_COUNT=${#TESTS[@]}
 203 i=0
 204
 205 start_lttng_sessiond
 206
 207 while [ $i -lt $TEST_COUNT ]; do
 208         TRACE_PATH=$(mktemp -d)
 209         ${TESTS[$i]}
 210         #rm -rf $TRACE_PATH
 211         let "i++"
 212 done
 213
 214 stop_lttng_sessiond