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_ok $SESSION_NAME $TRACE_PATH
  56         enable_channel_per_pid $SESSION_NAME "channel0"
  57         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
  58         start_lttng_tracing_ok $SESSION_NAME
  59
  60         for i in `seq 1 5`; do
  61                 $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT >/dev/null 2>&1 &
  62                 ok $? "Start application $i for tracing"
  63         done
  64         wait
  65
  66         stop_lttng_tracing_ok $SESSION_NAME
  67         destroy_lttng_session_ok $SESSION_NAME
  68
  69         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
  70
  71         return $?
  72 }
  73
  74 test_before_multiple_apps() {
  75         local out
  76         local i
  77         local file_sync_after_first=$(mktemp -u)
  78         local file_sync_before_last=$(mktemp -u)
  79
  80         diag "Start multiple applications BEFORE tracing is started"
  81
  82         for i in `seq 1 5`; do
  83                 $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
  84                         --sync-after-first-event ${file_sync_after_first}_${i} \
  85                         --sync-before-last-event ${file_sync_before_last}_${i} >/dev/null 2>&1 &
  86                 ok $? "Start application $i for tracing"
  87         done
  88
  89         # BEFORE application is spawned
  90         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  91         enable_channel_per_pid $SESSION_NAME "channel0"
  92         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
  93         start_lttng_tracing_ok $SESSION_NAME
  94
  95         for i in `seq 1 5`; do
  96                 touch ${file_sync_before_last}_${i}
  97         done
  98
  99         diag "Waiting for applications to end"
 100         wait
 101         pass "Waiting done"
 102
 103         stop_lttng_tracing_ok $SESSION_NAME
 104         destroy_lttng_session_ok $SESSION_NAME
 105
 106         for i in `seq 1 5`; do
 107                 rm -f ${file_sync_after_first}_${i}
 108                 rm -f ${file_sync_before_last}_${i}
 109         done
 110
 111         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 112         if [ $out -eq 0 ]; then
 113                 fail "Trace validation"
 114                 diag "No event(s) found. We are supposed to have at least one."
 115                 out=1
 116         else
 117                 pass "Trace validation"
 118                 diag "Found $out event(s). Coherent."
 119                 out=0
 120         fi
 121
 122         return $out
 123 }
 124
 125 test_after_app() {
 126         local out
 127
 128         diag "Start application AFTER tracing is started"
 129
 130         # BEFORE application is spawned
 131         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 132         enable_channel_per_pid $SESSION_NAME "channel0"
 133         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
 134         start_lttng_tracing_ok $SESSION_NAME
 135
 136         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT &
 137         ok $? "Start application to trace"
 138         wait
 139
 140         stop_lttng_tracing_ok $SESSION_NAME
 141         destroy_lttng_session_ok $SESSION_NAME
 142
 143         trace_match_only $EVENT_NAME $NR_ITER $TRACE_PATH
 144
 145         return $?
 146 }
 147
 148 test_before_app() {
 149         local out
 150         local file_sync_after_first=$(mktemp -u)
 151         local file_sync_before_last=$(mktemp -u)
 152
 153         diag "Start application BEFORE tracing is started"
 154
 155
 156         # BEFORE application is spawned
 157         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 158         enable_channel_per_pid $SESSION_NAME "channel0"
 159         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
 160
 161         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 162                 --sync-after-first-event ${file_sync_after_first} \
 163                 --sync-before-last-event ${file_sync_before_last} &
 164         ok $? "Start application to trace"
 165
 166         start_lttng_tracing_ok $SESSION_NAME
 167
 168         touch ${file_sync_before_last}
 169
 170         wait
 171
 172         stop_lttng_tracing_ok $SESSION_NAME
 173         destroy_lttng_session_ok $SESSION_NAME
 174
 175         rm -f ${file_sync_after_first}
 176         rm -f ${file_sync_before_last}
 177
 178         out=$(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         return $out
 190 }
 191
 192 test_multiple_channels() {
 193         local out
 194
 195         diag "Start with multiple channels"
 196
 197         # BEFORE application is spawned
 198         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 199         enable_channel_per_pid $SESSION_NAME "channel0"
 200         enable_channel_per_pid $SESSION_NAME "channel1"
 201         enable_channel_per_pid $SESSION_NAME "channel2"
 202         enable_channel_per_pid $SESSION_NAME "channel3"
 203         enable_channel_per_pid $SESSION_NAME "channel4"
 204         # Enable event in all channels.
 205         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel0 -s $SESSION_NAME -u >/dev/null 2>&1
 206         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel0"
 207         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel1 -s $SESSION_NAME -u >/dev/null 2>&1
 208         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel1"
 209         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel2 -s $SESSION_NAME -u >/dev/null 2>&1
 210         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel2"
 211         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel3 -s $SESSION_NAME -u >/dev/null 2>&1
 212         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel3"
 213         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel4 -s $SESSION_NAME -u >/dev/null 2>&1
 214         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel4"
 215         start_lttng_tracing_ok $SESSION_NAME
 216
 217         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT &
 218         ok $? "Start application to trace"
 219         wait
 220
 221         stop_lttng_tracing_ok $SESSION_NAME
 222         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
 223         out=$?
 224
 225         destroy_lttng_session_ok $SESSION_NAME
 226
 227         return $out
 228 }
 229
 230 # MUST set TESTDIR before calling those functions
 231 plan_tests $NUM_TESTS
 232
 233 print_test_banner "$TEST_DESC"
 234
 235 TESTS=(
 236         "test_before_app"
 237         "test_after_app"
 238         "test_after_multiple_apps"
 239         "test_before_multiple_apps"
 240         "test_multiple_channels"
 241 )
 242
 243 TEST_COUNT=${#TESTS[@]}
 244 i=0
 245
 246 start_lttng_sessiond
 247
 248 while [ $i -lt $TEST_COUNT ]; do
 249         TRACE_PATH=$(mktemp -d)
 250         ${TESTS[$i]}
 251         rm -rf $TRACE_PATH
 252         let "i++"
 253 done
 254
 255 stop_lttng_sessiond