tests/regression/ust/nprocesses/test_nprocesses

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
   4 #
   5 # SPDX-License-Identifier: LGPL-2.1-only
   6
   7 NUM_PROCESS=30
   8 TEST_DESC="UST tracer - Generate $NUM_PROCESS process"
   9
  10 CURDIR=$(dirname $0)/
  11 TESTDIR=$CURDIR/../../..
  12 NR_ITER=-1      # infinite loop
  13 NR_USEC_WAIT=1000000
  14 TESTAPP_PATH="$TESTDIR/utils/testapp"
  15 TESTAPP_NAME="gen-ust-events"
  16 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  17 SESSION_NAME="ust-nprocesses"
  18 EVENT_NAME="tp:tptest"
  19 TEST_WAIT_SEC=5
  20 NUM_TESTS=9
  21 APPS_PID=
  22
  23 source $TESTDIR/utils/utils.sh
  24
  25 if [ ! -x "$TESTAPP_BIN" ]; then
  26         BAIL_OUT "No UST $TESTAPP_BIN binary detected."
  27 fi
  28
  29 # MUST set TESTDIR before calling those functions
  30
  31 plan_tests $NUM_TESTS
  32
  33 print_test_banner "$TEST_DESC"
  34
  35 start_lttng_sessiond
  36
  37 # Start tests. Each is an infinite tracing loop.
  38
  39 file_sync_after_first=$(mktemp --tmpdir -u tmp.test_nprocesses_sync_after_first.XXXXXX)
  40 file_sync_before_last=$(mktemp --tmpdir -u tmp.test_nprocesses_sync_before_last.XXXXXX)
  41
  42 diag "Starting $NUM_PROCESS test applications"
  43 for i in `seq 1 $NUM_PROCESS`
  44 do
  45         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
  46                 --sync-after-first-event ${file_sync_after_first} \
  47                 --sync-before-last-event ${file_sync_before_last} >/dev/null 2>&1 &
  48         APPS_PID="${APPS_PID} ${!}"
  49 done
  50
  51 diag "Waiting for applications to be registered to sessiond"
  52
  53 reg_app_count=0
  54 while [ $reg_app_count -ne $NUM_PROCESS ]; do
  55         listing=$($TESTDIR/../src/bin/lttng/$LTTNG_BIN list -u)
  56         reg_app_count=$(echo -n $listing | sed "s#$TESTAPP_BIN#$TESTAPP_BIN\n#g" | grep "$TESTAPP_BIN" | wc -l)
  57 done
  58
  59 pass "All applications are registered to sessiond"
  60
  61 TRACE_PATH=$(mktemp --tmpdir -d tmp.test_nprocesses_trace_path.XXXXXX)
  62
  63 create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  64
  65 enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
  66 start_lttng_tracing_ok $SESSION_NAME
  67
  68 touch ${file_sync_before_last}
  69
  70 # We don't validate whether the applications have traced here, rather
  71 # just that they registered to sessiond (above).
  72
  73 stop_lttng_tracing_ok $SESSION_NAME
  74 destroy_lttng_session_ok $SESSION_NAME
  75
  76 #TODO: add trace validation.
  77
  78 rm -rf $TRACE_PATH
  79
  80 diag "Stopping all spawned applications"
  81 for p in ${APPS_PID}; do
  82         kill ${p}
  83         wait ${p} 2>/dev/null
  84 done
  85 APPS_PID=
  86 pass "Stopped all spawned applications"
  87
  88 rm -f ${file_sync_after_first}
  89 rm -f ${file_sync_before_last}
  90
  91 stop_lttng_sessiond