tests/regression/ust/buffers-pid/test_buffers_pid

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
   4 #
   5 # SPDX-License-Identifier: LGPL-2.1-only
   6
   7 TEST_DESC="UST tracer - Tracing with per PID buffers"
   8
   9 CURDIR=$(dirname $0)/
  10 TESTDIR=$CURDIR/../../..
  11 NR_ITER=100
  12 NR_USEC_WAIT=100000
  13 SESSION_NAME="buffers-pid"
  14
  15 TESTAPP_PATH="$TESTDIR/utils/testapp"
  16 TESTAPP_NAME="gen-ust-events"
  17 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  18 EVENT_NAME="tp:tptest"
  19 NUM_TESTS=59
  20
  21 source $TESTDIR/utils/utils.sh
  22
  23 if [ ! -x "$TESTAPP_BIN" ]; then
  24         BAIL_OUT "No UST events binary detected."
  25 fi
  26
  27 # MUST set TESTDIR before calling those functions
  28
  29 function enable_channel_per_pid()
  30 {
  31         sess_name=$1
  32         channel_name=$2
  33
  34         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-pid -u $channel_name -s $sess_name >/dev/null 2>&1
  35         ok $? "Enable channel $channel_name per PID for session $sess_name"
  36 }
  37
  38 test_after_multiple_apps() {
  39         local out
  40         local i
  41
  42         diag "Start multiple applications AFTER tracing is started"
  43
  44         # BEFORE application is spawned
  45         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  46         enable_channel_per_pid $SESSION_NAME "channel0"
  47         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
  48         start_lttng_tracing_ok $SESSION_NAME
  49
  50         for i in `seq 1 5`; do
  51                 $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT >/dev/null 2>&1 &
  52                 ok $? "Start application $i for tracing"
  53         done
  54         wait
  55
  56         stop_lttng_tracing_ok $SESSION_NAME
  57         destroy_lttng_session_ok $SESSION_NAME
  58
  59         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
  60
  61         return $?
  62 }
  63
  64 test_before_multiple_apps() {
  65         local out
  66         local i
  67         local file_sync_after_first=$(mktemp --tmpdir -u "tmp.${FUNCNAME[0]}_sync_after_first.XXXXXX")
  68         local file_sync_before_last=$(mktemp --tmpdir -u "tmp.${FUNCNAME[0]}_sync_before_last.XXXXXX")
  69
  70         diag "Start multiple applications BEFORE tracing is started"
  71
  72         for i in `seq 1 5`; do
  73                 $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
  74                         --sync-after-first-event ${file_sync_after_first}_${i} \
  75                         --sync-before-last-event ${file_sync_before_last}_${i} >/dev/null 2>&1 &
  76                 ok $? "Start application $i for tracing"
  77         done
  78
  79         # BEFORE application is spawned
  80         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  81         enable_channel_per_pid $SESSION_NAME "channel0"
  82         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
  83         start_lttng_tracing_ok $SESSION_NAME
  84
  85         for i in `seq 1 5`; do
  86                 touch ${file_sync_before_last}_${i}
  87         done
  88
  89         diag "Waiting for applications to end"
  90         wait
  91         pass "Waiting done"
  92
  93         stop_lttng_tracing_ok $SESSION_NAME
  94         destroy_lttng_session_ok $SESSION_NAME
  95
  96         for i in `seq 1 5`; do
  97                 rm -f ${file_sync_after_first}_${i}
  98                 rm -f ${file_sync_before_last}_${i}
  99         done
 100
 101         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 102         if [ $out -eq 0 ]; then
 103                 fail "Trace validation"
 104                 diag "No event(s) found. We are supposed to have at least one."
 105                 out=1
 106         else
 107                 pass "Trace validation"
 108                 diag "Found $out event(s). Coherent."
 109                 out=0
 110         fi
 111
 112         return $out
 113 }
 114
 115 test_after_app() {
 116         local out
 117
 118         diag "Start application AFTER tracing is started"
 119
 120         # BEFORE application is spawned
 121         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 122         enable_channel_per_pid $SESSION_NAME "channel0"
 123         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
 124         start_lttng_tracing_ok $SESSION_NAME
 125
 126         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT &
 127         ok $? "Start application to trace"
 128         wait
 129
 130         stop_lttng_tracing_ok $SESSION_NAME
 131         destroy_lttng_session_ok $SESSION_NAME
 132
 133         trace_match_only $EVENT_NAME $NR_ITER $TRACE_PATH
 134
 135         return $?
 136 }
 137
 138 test_before_app() {
 139         local out
 140         local file_sync_after_first=$(mktemp --tmpdir -u "tmp.${FUNCNAME[0]}_sync_after_first.XXXXXX")
 141         local file_sync_before_last=$(mktemp --tmpdir -u "tmp.${FUNCNAME[0]}_sync_before_last.XXXXXX")
 142
 143         diag "Start application BEFORE tracing is started"
 144
 145
 146         # BEFORE application is spawned
 147         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 148         enable_channel_per_pid $SESSION_NAME "channel0"
 149         enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
 150
 151         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 152                 --sync-after-first-event ${file_sync_after_first} \
 153                 --sync-before-last-event ${file_sync_before_last} &
 154         ok $? "Start application to trace"
 155
 156         start_lttng_tracing_ok $SESSION_NAME
 157
 158         touch ${file_sync_before_last}
 159
 160         wait
 161
 162         stop_lttng_tracing_ok $SESSION_NAME
 163         destroy_lttng_session_ok $SESSION_NAME
 164
 165         rm -f ${file_sync_after_first}
 166         rm -f ${file_sync_before_last}
 167
 168         out=$(babeltrace $TRACE_PATH | grep $EVENT_NAME | wc -l)
 169         if [ $out -eq 0 ]; then
 170                 fail "Trace validation"
 171                 diag "No event(s) found. We are supposed to have at least one."
 172                 out=1
 173         else
 174                 pass "Trace validation"
 175                 diag "Found $out event(s). Coherent."
 176                 out=0
 177         fi
 178
 179         return $out
 180 }
 181
 182 test_multiple_channels() {
 183         local out
 184
 185         diag "Start with multiple channels"
 186
 187         # BEFORE application is spawned
 188         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 189         enable_channel_per_pid $SESSION_NAME "channel0"
 190         enable_channel_per_pid $SESSION_NAME "channel1"
 191         enable_channel_per_pid $SESSION_NAME "channel2"
 192         enable_channel_per_pid $SESSION_NAME "channel3"
 193         enable_channel_per_pid $SESSION_NAME "channel4"
 194         # Enable event in all channels.
 195         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel0 -s $SESSION_NAME -u >/dev/null 2>&1
 196         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel0"
 197         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel1 -s $SESSION_NAME -u >/dev/null 2>&1
 198         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel1"
 199         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel2 -s $SESSION_NAME -u >/dev/null 2>&1
 200         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel2"
 201         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel3 -s $SESSION_NAME -u >/dev/null 2>&1
 202         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel3"
 203         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $EVENT_NAME -c channel4 -s $SESSION_NAME -u >/dev/null 2>&1
 204         ok $? "Enable event $EVENT_NAME for session $SESSION_NAME in channel4"
 205         start_lttng_tracing_ok $SESSION_NAME
 206
 207         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT &
 208         ok $? "Start application to trace"
 209         wait
 210
 211         stop_lttng_tracing_ok $SESSION_NAME
 212         trace_match_only $EVENT_NAME $[NR_ITER * 5] $TRACE_PATH
 213         out=$?
 214
 215         destroy_lttng_session_ok $SESSION_NAME
 216
 217         return $out
 218 }
 219
 220 # MUST set TESTDIR before calling those functions
 221 plan_tests $NUM_TESTS
 222
 223 print_test_banner "$TEST_DESC"
 224
 225 TESTS=(
 226         "test_before_app"
 227         "test_after_app"
 228         "test_after_multiple_apps"
 229         "test_before_multiple_apps"
 230         "test_multiple_channels"
 231 )
 232
 233 TEST_COUNT=${#TESTS[@]}
 234 i=0
 235
 236 start_lttng_sessiond
 237
 238 while [ $i -lt $TEST_COUNT ]; do
 239         TRACE_PATH=$(mktemp --tmpdir -d tmp.test_buffers_pid_trace_path.XXXXXX)
 240         ${TESTS[$i]}
 241         rm -rf $TRACE_PATH
 242         let "i++"
 243 done
 244
 245 stop_lttng_sessiond