3 # Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
5 # SPDX-License-Identifier: LGPL-2.1-only
7 TEST_DESC
="UST tracer - Tracing with per UID buffers and periodical flush"
10 TESTDIR
=$CURDIR/..
/..
/..
13 TESTAPP_PATH
="$TESTDIR/utils/testapp"
14 TESTAPP_NAME
="gen-ust-events"
15 TESTAPP_BIN
="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
16 SESSION_NAME
="periodical-flush"
17 EVENT_NAME
="tp:tptest"
18 BIN_NAME
="gen-nevents"
20 APP_TMP_FILE
=$
(mktemp
--tmpdir -u tmp.test_periodical_metadata_flush_ust_app_tmp_file.XXXXXX
)
23 source $TESTDIR/utils
/utils.sh
25 if [ ! -x "$TESTAPP_BIN" ]; then
26 BAIL_OUT
"No UST events binary detected."
29 # MUST set TESTDIR before calling those functions
31 function enable_channel_per_uid
()
36 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN enable-channel
--buffers-uid -u $channel_name -s $sess_name --switch-timer 100000 >/dev
/null
2>&1
37 ok $?
"Enable channel $channel_name per UID for session $sess_name"
40 function enable_channel_per_pid
()
45 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN enable-channel
--buffers-pid -u $channel_name -s $sess_name --switch-timer 100000 >/dev
/null
2>&1
46 ok $?
"Enable channel $channel_name per UID for session $sess_name"
49 function enable_metadata_per_uid
()
52 local channel_name
="metadata"
54 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN enable-channel
--buffers-uid -u $channel_name -s $sess_name --switch-timer 200000 >/dev
/null
2>&1
55 ok $?
"Enable channel $channel_name per UID for session $sess_name"
58 function enable_metadata_per_pid
()
61 local channel_name
="metadata"
63 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN enable-channel
--buffers-pid -u $channel_name -s $sess_name --switch-timer 200000 >/dev
/null
2>&1
64 ok $?
"Enable channel $channel_name per PID for session $sess_name"
67 function validate_trace
()
71 out
=$
(babeltrace
$TRACE_PATH |
grep $EVENT_NAME |
wc -l)
72 if [ $out -eq 0 ]; then
73 fail
"Trace validation"
74 diag
"No event(s) found. We are supposed to have at least one."
77 pass
"Trace validation"
78 diag
"Found $out event(s). Coherent."
85 function check_app_tmp_file
()
87 # Wait for the application file to appear indicating that at least one
88 # tracepoint has been fired.
89 while [ ! -f "$APP_TMP_FILE" ]; do
92 diag
"Removing test app temporary file $APP_TMP_FILE"
96 function start_trace_app
()
98 # Start application with a temporary file.
99 $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT --sync-after-first-event $APP_TMP_FILE &
101 APPS_PID
="${APPS_PID} ${!}"
102 ok
$ret "Start application to trace"
105 function start_check_trace_app
()
112 function wait_trace_apps
()
114 for p
in ${APPS_PID}; do
115 wait ${p} 2>/dev
/null
120 test_after_app_pid
() {
125 diag
"Start application AFTER tracing is started"
127 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
128 enable_metadata_per_pid
$SESSION_NAME
129 enable_channel_per_pid
$SESSION_NAME "channel0"
130 enable_ust_lttng_event_ok
$SESSION_NAME $EVENT_NAME "channel0"
131 start_lttng_tracing_ok
$SESSION_NAME
133 # Start application after tracing
134 start_check_trace_app
135 # After this point we are sure that at least one event has been hit.
137 # Make sure the application does not generate any more data,
138 # thus ensuring that we are not flushing a packet concurrently
139 # with validate_trace.
140 for p
in ${APPS_PID}; do
144 # Give time to the consumer to write inflight data.
150 for p
in ${APPS_PID}; do
152 wait ${p} 2>/dev
/null
154 stop_lttng_tracing_ok
$SESSION_NAME
155 destroy_lttng_session_ok
$SESSION_NAME
162 test_before_app_pid
() {
164 local tmp_file
="/tmp/lttng_test_ust.42.file"
168 diag
"Start application BEFORE tracing is started"
172 # Start application before tracing
173 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
174 enable_metadata_per_pid
$SESSION_NAME
175 enable_channel_per_pid
$SESSION_NAME "channel0"
176 enable_ust_lttng_event_ok
$SESSION_NAME $EVENT_NAME "channel0"
177 start_lttng_tracing_ok
$SESSION_NAME
180 # Let the application at least perform a flush!
183 # Make sure the application does not generate any more data,
184 # thus ensuring that we are not flushing a packet concurrently
185 # with validate_trace.
186 for p
in ${APPS_PID}; do
190 # Give time to the consumer to write inflight data.
196 for p
in ${APPS_PID}; do
198 wait ${p} 2>/dev
/null
201 stop_lttng_tracing_ok
$SESSION_NAME
202 destroy_lttng_session_ok
$SESSION_NAME
209 test_after_app_uid
() {
214 diag
"Start application AFTER tracing is started"
216 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
217 enable_metadata_per_uid
$SESSION_NAME
218 enable_channel_per_uid
$SESSION_NAME "channel0"
219 enable_ust_lttng_event_ok
$SESSION_NAME $EVENT_NAME "channel0"
220 start_lttng_tracing_ok
$SESSION_NAME
222 # Start application after tracing
223 start_check_trace_app
224 # After this point we are sure that at least one event has been hit.
226 # Make sure the application does not generate any more data,
227 # thus ensuring that we are not flushing a packet concurrently
228 # with validate_trace.
229 for p
in ${APPS_PID}; do
234 # Give time to the consumer to write inflight data.
240 for p
in ${APPS_PID}; do
242 wait ${p} 2>/dev
/null
244 stop_lttng_tracing_ok
$SESSION_NAME
245 destroy_lttng_session_ok
$SESSION_NAME
252 test_before_app_uid
() {
257 diag
"Start application BEFORE tracing is started"
259 # Start application before tracing
262 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
263 enable_metadata_per_uid
$SESSION_NAME
264 enable_channel_per_uid
$SESSION_NAME "channel0"
265 enable_ust_lttng_event_ok
$SESSION_NAME $EVENT_NAME "channel0"
266 start_lttng_tracing_ok
$SESSION_NAME
269 # Let the application at least perform a flush!
272 # Make sure the application does not generate any more data,
273 # thus ensuring that we are not flushing a packet concurrently
274 # with validate_trace.
275 for p
in ${APPS_PID}; do
279 # Give time to the consumer to write inflight data.
285 for p
in ${APPS_PID}; do
287 wait ${p} 2>/dev
/null
289 stop_lttng_tracing_ok
$SESSION_NAME
290 destroy_lttng_session_ok
$SESSION_NAME
297 # MUST set TESTDIR before calling those functions
298 plan_tests
$NUM_TESTS
300 print_test_banner
"$TEST_DESC"
303 "test_before_app_uid"
305 "test_before_app_pid"
309 TEST_COUNT
=${#TESTS[@]}
314 while [ $i -lt $TEST_COUNT ]; do
315 TRACE_PATH
=$
(mktemp
--tmpdir -d tmp.test_periodical_metadata_flush_ust_trace_path.XXXXXX
)