| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) - 2013 Julien Desfossez <jdesfossez@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="Snapshots - UST tracing" |
| 18 | |
| 19 | CURDIR=$(dirname $0)/ |
| 20 | TESTDIR=$CURDIR/../../.. |
| 21 | EVENT_NAME="tp:tptest" |
| 22 | PID_RELAYD=0 |
| 23 | SESSION_NAME="" |
| 24 | CHANNEL_NAME="snapchan" |
| 25 | TESTAPP_PATH="$TESTDIR/utils/testapp" |
| 26 | TESTAPP_NAME="gen-ust-events" |
| 27 | TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME" |
| 28 | NR_ITER=2000000 |
| 29 | NR_USEC_WAIT=100 |
| 30 | |
| 31 | NUM_TESTS=76 |
| 32 | |
| 33 | TRACE_PATH=$(mktemp -d) |
| 34 | |
| 35 | source $TESTDIR/utils/utils.sh |
| 36 | |
| 37 | if [ ! -x "$TESTAPP_BIN" ]; then |
| 38 | BAIL_OUT "No UST events binary detected." |
| 39 | fi |
| 40 | |
| 41 | # Need the number of snapshot to do. |
| 42 | if [ -z $1 ]; then |
| 43 | BAIL_OUT "A number of snapshot is needed." |
| 44 | fi |
| 45 | NR_SNAPSHOT=$1 |
| 46 | |
| 47 | NUM_TESTS=$(($NUM_TESTS + ($NR_SNAPSHOT * 2))) |
| 48 | |
| 49 | function start_test_app() |
| 50 | { |
| 51 | local tmp_file="/tmp/lttng_test_ust.42.file" |
| 52 | |
| 53 | # Start application with a temporary file. |
| 54 | $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT $tmp_file & |
| 55 | ok $? "Start application to trace" |
| 56 | |
| 57 | # Wait for the application file to appear indicating that at least one |
| 58 | # tracepoint has been fired. |
| 59 | while [ ! -f "$tmp_file" ]; do |
| 60 | sleep 0.5 |
| 61 | done |
| 62 | diag "Removing test app temporary file $tmp_file" |
| 63 | rm -f $tmp_file |
| 64 | } |
| 65 | |
| 66 | function kill_test_app() |
| 67 | { |
| 68 | diag "Killing $TESTAPP_NAME" |
| 69 | PID_APP=`pidof $TESTAPP_NAME` |
| 70 | kill $PID_APP >/dev/null 2>&1 |
| 71 | } |
| 72 | |
| 73 | function snapshot_add_output () |
| 74 | { |
| 75 | local sess_name=$1 |
| 76 | local trace_path=$2 |
| 77 | local name=$3 |
| 78 | local max_size=$4 |
| 79 | local extra_opt="" |
| 80 | |
| 81 | if [ ! -z $name ]; then |
| 82 | extra_opt+=" -n $name " |
| 83 | fi |
| 84 | |
| 85 | if [ ! -z $max_size ]; then |
| 86 | extra_opt+=" -m $max_size " |
| 87 | fi |
| 88 | |
| 89 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output \ |
| 90 | -s $sess_name $extra_opt $trace_path > /dev/null 2>&1 |
| 91 | |
| 92 | ok $? "Added snapshot output $trace_path ($extra_opt)" |
| 93 | } |
| 94 | |
| 95 | function snapshot_del_output () |
| 96 | { |
| 97 | local sess_name=$1 |
| 98 | local name=$2 |
| 99 | |
| 100 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot del-output \ |
| 101 | -s $sess_name $name > /dev/null 2>&1 |
| 102 | |
| 103 | ok $? "Deleted snapshot output named $name" |
| 104 | } |
| 105 | |
| 106 | function enable_mmap_overwrite_subbuf_ust_channel () |
| 107 | { |
| 108 | local sess_name=$1 |
| 109 | local chan_name=$2 |
| 110 | local subbuf_size=$3 |
| 111 | |
| 112 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \ |
| 113 | $chan_name -u --output mmap --overwrite \ |
| 114 | --subbuf-size $subbuf_size > /dev/null 2>&1 |
| 115 | |
| 116 | ok $? "Enable channel $channel_name for session $sess_name with subbuf size $subbuf_size" |
| 117 | } |
| 118 | |
| 119 | |
| 120 | function test_ust_list_output () |
| 121 | { |
| 122 | output_names=("randomname" "somesnapshot") |
| 123 | |
| 124 | diag "Test UST snapshot output listing" |
| 125 | create_lttng_session_no_output $SESSION_NAME |
| 126 | enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME |
| 127 | enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 128 | |
| 129 | start_lttng_tracing $SESSION_NAME |
| 130 | |
| 131 | snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[0]} |
| 132 | |
| 133 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \ |
| 134 | -s $SESSION_NAME 2>&1 | grep ${output_names[0]} > /dev/null |
| 135 | ok $? "Snapshot named ${output_names[0]} present in list-output listing" |
| 136 | |
| 137 | snapshot_del_output $SESSION_NAME ${output_names[0]} |
| 138 | |
| 139 | snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[1]} |
| 140 | |
| 141 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \ |
| 142 | -s $SESSION_NAME 2>&1 | grep ${output_names[1]} > /dev/null |
| 143 | |
| 144 | ok $? "Snapshot named ${output_names[1]} present in list-output listing" |
| 145 | |
| 146 | stop_lttng_tracing $SESSION_NAME |
| 147 | destroy_lttng_session $SESSION_NAME |
| 148 | } |
| 149 | |
| 150 | function test_ust_local_snapshot () |
| 151 | { |
| 152 | diag "Test local UST snapshots" |
| 153 | create_lttng_session_no_output $SESSION_NAME |
| 154 | enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME |
| 155 | enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 156 | start_lttng_tracing $SESSION_NAME |
| 157 | lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH |
| 158 | |
| 159 | # Returns once the application has at least fired ONE tracepoint. |
| 160 | start_test_app |
| 161 | |
| 162 | lttng_snapshot_record $SESSION_NAME |
| 163 | stop_lttng_tracing $SESSION_NAME |
| 164 | destroy_lttng_session $SESSION_NAME |
| 165 | |
| 166 | # Validate test |
| 167 | validate_trace $EVENT_NAME $TRACE_PATH/ |
| 168 | if [ $? -eq 0 ]; then |
| 169 | # Only delete if successful |
| 170 | rm -rf $TRACE_PATH |
| 171 | else |
| 172 | break |
| 173 | fi |
| 174 | |
| 175 | kill_test_app |
| 176 | } |
| 177 | |
| 178 | function test_ust_local_snapshot_max_size () |
| 179 | { |
| 180 | subbuf_size=8192 |
| 181 | num_cpus=`nproc` |
| 182 | |
| 183 | # The minimum size limit is min(subbuf_size) * nb_streams |
| 184 | max_size=$(($subbuf_size*$num_cpus)) |
| 185 | |
| 186 | diag "Test local UST snapshots with max size $max_size" |
| 187 | create_lttng_session_no_output $SESSION_NAME |
| 188 | |
| 189 | enable_mmap_overwrite_subbuf_ust_channel $SESSION_NAME $CHANNEL_NAME $subbuf_size |
| 190 | |
| 191 | enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 192 | start_lttng_tracing $SESSION_NAME |
| 193 | |
| 194 | snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" "" $max_size |
| 195 | |
| 196 | # Returns once the application has at least fired ONE tracepoint. |
| 197 | start_test_app |
| 198 | |
| 199 | lttng_snapshot_record $SESSION_NAME |
| 200 | |
| 201 | # Check file size |
| 202 | sum_size_tracefiles=$(find $TRACE_PATH -name "${CHANNEL_NAME}_*" \ |
| 203 | -exec stat -c '%s' {} \; | awk '{s = s + $1}END{print s}') |
| 204 | |
| 205 | if [ "$sum_size_tracefiles" -gt "$max_size" ]; then |
| 206 | fail "Tracefiles size sum validation" |
| 207 | diag "Tracefiles size sum: $sum_size_tracefiles Expected max: $max_size" |
| 208 | fi |
| 209 | |
| 210 | pass "Tracefiles size sum validation" |
| 211 | |
| 212 | stop_lttng_tracing $SESSION_NAME |
| 213 | destroy_lttng_session $SESSION_NAME |
| 214 | |
| 215 | # Validate test |
| 216 | validate_trace $EVENT_NAME $TRACE_PATH/ |
| 217 | |
| 218 | if [ $? -eq 0 ]; then |
| 219 | # Only delete if successful |
| 220 | rm -rf $TRACE_PATH |
| 221 | fi |
| 222 | |
| 223 | kill_test_app |
| 224 | } |
| 225 | |
| 226 | function test_ust_local_snapshot_large_metadata () |
| 227 | { |
| 228 | LM_EVENT="tp:tptest1,tp:tptest2,tp:tptest3,tp:tptest4,tp:tptest5" |
| 229 | LM_PATH="$TESTDIR/utils/testapp" |
| 230 | LM_NAME="gen-ust-nevents" |
| 231 | LM_BIN="$LM_PATH/$LM_NAME/$LM_NAME" |
| 232 | |
| 233 | diag "Test local UST snapshots with > 4kB metadata" |
| 234 | create_lttng_session_no_output $SESSION_NAME |
| 235 | enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME |
| 236 | enable_ust_lttng_event $SESSION_NAME $LM_EVENT $CHANNEL_NAME |
| 237 | start_lttng_tracing $SESSION_NAME |
| 238 | lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH |
| 239 | $LM_BIN 1 1 |
| 240 | ok $? "Start application to trace" |
| 241 | lttng_snapshot_record $SESSION_NAME |
| 242 | stop_lttng_tracing $SESSION_NAME |
| 243 | destroy_lttng_session $SESSION_NAME |
| 244 | |
| 245 | # Validate test |
| 246 | validate_trace $LM_EVENT $TRACE_PATH/ |
| 247 | if [ $? -eq 0 ]; then |
| 248 | # Only delete if successful |
| 249 | rm -rf $TRACE_PATH |
| 250 | else |
| 251 | break |
| 252 | fi |
| 253 | } |
| 254 | |
| 255 | function enable_channel_per_uid_mmap_overwrite() |
| 256 | { |
| 257 | sess_name=$1 |
| 258 | channel_name=$2 |
| 259 | |
| 260 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --output mmap --overwrite >/dev/null 2>&1 |
| 261 | ok $? "Enable channel $channel_name per UID for session $sess_name" |
| 262 | } |
| 263 | |
| 264 | function test_ust_per_uid_local_snapshot () |
| 265 | { |
| 266 | diag "Test local UST snapshots" |
| 267 | create_lttng_session_no_output $SESSION_NAME |
| 268 | enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME |
| 269 | enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 270 | start_lttng_tracing $SESSION_NAME |
| 271 | lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH |
| 272 | |
| 273 | # Returns once the application has at least fired ONE tracepoint. |
| 274 | start_test_app |
| 275 | |
| 276 | lttng_snapshot_record $SESSION_NAME |
| 277 | stop_lttng_tracing $SESSION_NAME |
| 278 | destroy_lttng_session $SESSION_NAME |
| 279 | |
| 280 | # Validate test |
| 281 | validate_trace $EVENT_NAME $TRACE_PATH/ |
| 282 | if [ $? -eq 0 ]; then |
| 283 | # Only delete if successful |
| 284 | rm -rf $TRACE_PATH |
| 285 | else |
| 286 | break |
| 287 | fi |
| 288 | |
| 289 | kill_test_app |
| 290 | } |
| 291 | |
| 292 | function test_ust_per_uid_local_snapshot_post_mortem () |
| 293 | { |
| 294 | diag "Test local UST snapshots post-mortem" |
| 295 | create_lttng_session_no_output $SESSION_NAME |
| 296 | enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME |
| 297 | enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 298 | start_lttng_tracing $SESSION_NAME |
| 299 | lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH |
| 300 | |
| 301 | # Returns once the application has at least fired ONE tracepoint. |
| 302 | start_test_app |
| 303 | kill_test_app |
| 304 | |
| 305 | lttng_snapshot_record $SESSION_NAME |
| 306 | stop_lttng_tracing $SESSION_NAME |
| 307 | destroy_lttng_session $SESSION_NAME |
| 308 | |
| 309 | # Validate test |
| 310 | validate_trace $EVENT_NAME $TRACE_PATH/ |
| 311 | if [ $? -eq 0 ]; then |
| 312 | # Only delete if successful |
| 313 | rm -rf $TRACE_PATH |
| 314 | else |
| 315 | break |
| 316 | fi |
| 317 | } |
| 318 | |
| 319 | function test_ust_local_snapshots () |
| 320 | { |
| 321 | diag "Test $NR_SNAPSHOT local UST snapshots" |
| 322 | create_lttng_session_no_output $SESSION_NAME |
| 323 | enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME |
| 324 | enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 325 | start_lttng_tracing $SESSION_NAME |
| 326 | lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH |
| 327 | |
| 328 | # Returns once the application has at least fired ONE tracepoint. |
| 329 | start_test_app |
| 330 | |
| 331 | for i in $(seq 1 $NR_SNAPSHOT); do |
| 332 | diag "Snapshot $i/$NR_SNAPSHOT" |
| 333 | rm -rf $TRACE_PATH/snapshot/* 2>/dev/null |
| 334 | lttng_snapshot_record $SESSION_NAME |
| 335 | # Validate test |
| 336 | validate_trace $EVENT_NAME $TRACE_PATH/ |
| 337 | if [ $? -eq 0 ]; then |
| 338 | # Only delete if successful |
| 339 | rm -rf $TRACE_PATH |
| 340 | else |
| 341 | break |
| 342 | fi |
| 343 | done |
| 344 | stop_lttng_tracing $SESSION_NAME |
| 345 | destroy_lttng_session $SESSION_NAME |
| 346 | |
| 347 | kill_test_app |
| 348 | } |
| 349 | |
| 350 | plan_tests $NUM_TESTS |
| 351 | |
| 352 | print_test_banner "$TEST_DESC" |
| 353 | |
| 354 | start_lttng_sessiond |
| 355 | |
| 356 | tests=( test_ust_list_output |
| 357 | test_ust_local_snapshot |
| 358 | test_ust_local_snapshot_max_size |
| 359 | test_ust_per_uid_local_snapshot |
| 360 | test_ust_per_uid_local_snapshot_post_mortem |
| 361 | test_ust_local_snapshot_large_metadata |
| 362 | test_ust_local_snapshots) |
| 363 | |
| 364 | for fct_test in ${tests[@]}; |
| 365 | do |
| 366 | SESSION_NAME=$(randstring 16 0) |
| 367 | ${fct_test} |
| 368 | done |
| 369 | |
| 370 | stop_lttng_sessiond |