tests/regression/ust/getcpu-override/test_getcpu_override

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2015 Jonathan Rajotte <jonathan.rajotte-julien@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 - Getcpu override plugin"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 SESSION_NAME="sequence-cpu"
  22
  23 TESTAPP_PATH="$TESTDIR/utils/testapp"
  24 TESTAPP_NAME="gen-ust-events"
  25 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  26 TESTAPP_WRAPPER="run-getcpu-override"
  27 NUM_EVENT=256
  28 EVENT_NAME="tp:tptest"
  29
  30 NUM_TESTS=20
  31
  32 SEQUENCE_SEED=(
  33 100 57 232 236 42 193 224 184 216 150 92 91 108 118 55 243 65 101 209 0 147 36
  34 29 34 49 188 174 105 253 245 227 238 112 20 222 201 102 175 119 19 132 41 78 90
  35 114 64 138 14 48 18 162 85 204 124 133 73 172 106 241 126 28 104 111 21 127 219
  36 9 244 237 189 59 214 52 141 107 26 25 199 3 157 117 234 33 44 46 84 69 155 122
  37 250 231 86 239 76 190 120 1 94 206 8 148 159 167 215 164 31 217 61 71 125 68 109
  38 195 177 95 82 142 182 129 87 37 140 134 186 173 39 116 143 254 229 131 67 121
  39 192 240 15 221 30 242 185 80 170 135 51 187 194 246 12 225 181 137 211 228 88
  40 218 27 233 161 77 252 123 93 220 248 205 223 144 128 196 70 247 210 178 203 154
  41 24 169 149 163 35 7 151 103 197 139 165 158 207 72 113 145 45 183 11 198 43 81
  42 230 97 96 2 66 213 146 179 22 58 54 38 160 200 235 226 156 56 208 249 32 176 168
  43 110 191 79 152 115 10 74 60 251 17 83 180 171 202 40 166 255 53 212 98 5 50 99 4
  44 89 13 63 6 136 153 23 16 47 130 75 62
  45 )
  46
  47 # Equivalent to the syconf(_SC_NPROCESSORS_CONF) call.
  48 NPROC=`nproc --all`
  49
  50 source $TESTDIR/utils/utils.sh
  51
  52 if [ ! -x "$CURDIR/.libs/lttng-ust-getcpu-override-test.so" ]; then
  53         BAIL_OUT "No shared object generated"
  54 fi
  55
  56 # MUST set TESTDIR before calling those functions
  57
  58 run_app()
  59 {
  60         diag "Launching app without getcpu-plugin wrapper"
  61         $TESTAPP_BIN $NUM_EVENT 1
  62         ok $? "Application without wrapper done"
  63 }
  64
  65 run_getcpu_plugin_app()
  66 {
  67         diag "Launching app with getcpu-plugin wrapper"
  68         $CURDIR/$TESTAPP_WRAPPER $TESTAPP_BIN $NUM_EVENT
  69         ok $? "Application with wrapper done"
  70 }
  71
  72 compare_ok()
  73 {
  74         compare 0 "$@"
  75 }
  76
  77 compare_fail()
  78 {
  79         compare 1 "$@"
  80 }
  81
  82 compare()
  83 {
  84         local expected_to_fail=$1
  85         declare -a array_to_compare=("${!2}")
  86         local valid=0
  87
  88         test ${#array_to_compare[*]} -eq ${#SEQUENCE_SEED[*]}
  89         ok $? "Sequence seed and cpuid sequence have the same size ${#SEQUENCE_SEED[*]}/${#array_to_compare[*]}"
  90
  91         for (( i = 0; i < ${#SEQUENCE_SEED[*]}; i++ )); do
  92                 if [ "${array_to_compare[$i]}" -ne "$(( ${SEQUENCE_SEED[$i]} % $NPROC))" ]; then
  93                         valid=1
  94                         break
  95                 fi
  96         done
  97
  98         if [[ $expected_to_fail -eq "1" ]]; then
  99                 test $valid -ne "0"
 100                 ok $? "Cpuid extraction and seed sequence comparison fails as expected"
 101         else
 102                 ok $valid "Cpuid extraction and seed sequence comparison"
 103                 if [[ $valid -ne "0" ]]; then
 104                         diag "Dumping arrays after failed comparison"
 105                         for (( i = 0; i < ${#SEQUENCE_SEED[*]}; i++ )); do
 106                                 echo -n "# array value is "
 107                                 echo -n "${array_to_compare[$i]}"
 108                                 echo -n " expected "
 109                                 echo "$(( ${SEQUENCE_SEED[$i]} % $NPROC))"
 110                         done
 111                         diag "Dumping trace"
 112                         $BABELTRACE_BIN $TRACE_PATH | awk '{print "# " $0}'
 113                 fi
 114         fi
 115 }
 116
 117 test_getcpu_override_fail()
 118 {
 119         diag "Getcpu plugin - no preloaded plugin"
 120
 121         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 122         enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
 123         start_lttng_tracing_ok $SESSION_NAME
 124         run_app
 125         stop_lttng_tracing_ok $SESSION_NAME
 126         destroy_lttng_session_ok $SESSION_NAME
 127
 128         # Move output to an array by using =($())
 129         local cpuid_events=($($BABELTRACE_BIN $TRACE_PATH | sed -n 's/.*cpu_id = \([0-9]*\).*/\1/p'))
 130         local num_events=${#cpuid_events[*]}
 131         test $num_events -eq $NUM_EVENT
 132         ok $? "Extraction without getcpu plugin have $num_events/$NUM_EVENT"
 133         compare_fail cpuid_events[@]
 134
 135         return $?
 136 }
 137
 138 test_getcpu_override()
 139 {
 140         diag "Getcpu plugin - with plugin preloaded"
 141
 142         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 143         enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
 144         start_lttng_tracing_ok $SESSION_NAME
 145         run_getcpu_plugin_app
 146         stop_lttng_tracing_ok $SESSION_NAME
 147         destroy_lttng_session_ok $SESSION_NAME
 148
 149         local cpuid_events=($($BABELTRACE_BIN $TRACE_PATH | sed -n 's/.*cpu_id = \([0-9]*\).*/\1/p'))
 150         local num_events=${#cpuid_events[*]}
 151         test $num_events -eq $NUM_EVENT
 152         ok $? "Extraction with getcpu plugin have $num_events/$NUM_EVENT"
 153
 154         compare_ok cpuid_events[@]
 155
 156         return $?
 157 }
 158
 159 plan_tests $NUM_TESTS
 160
 161 print_test_banner "$TEST_DESC"
 162
 163 TESTS=(
 164         test_getcpu_override_fail
 165         test_getcpu_override
 166 )
 167
 168 TEST_COUNT=${#TESTS[@]}
 169 i=0
 170
 171 start_lttng_sessiond
 172
 173 for fct_test in ${TESTS[@]};
 174 do
 175         TRACE_PATH=$(mktemp -d)
 176
 177         ${fct_test}
 178         if [ $? -ne 0 ]; then
 179                 break;
 180         fi
 181
 182         rm -rf $TRACE_PATH
 183 done
 184
 185 stop_lttng_sessiond