3 # Copyright (C) - 2012 David Goulet <dgoulet@efficios.com>
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.
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
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 tracer - Tracing with per UID buffers and periodical flush"
20 TESTDIR
=$CURDIR/..
/..
/..
23 TESTAPP_PATH
="$TESTDIR/utils/testapp"
24 TESTAPP_NAME
="gen-ust-events"
25 TESTAPP_BIN
="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
26 SESSION_NAME
="periodical-flush"
27 EVENT_NAME
="tp:tptest"
28 BIN_NAME
="gen-nevents"
30 APP_TMP_FILE
=$
(mktemp
-u)
33 source $TESTDIR/utils
/utils.sh
35 if [ ! -x "$TESTAPP_BIN" ]; then
36 BAIL_OUT
"No UST events binary detected."
39 # MUST set TESTDIR before calling those functions
41 function enable_channel_per_uid
()
46 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN enable-channel
--buffers-uid -u $channel_name -s $sess_name --switch-timer 100000 >/dev
/null
2>&1
47 ok $?
"Enable channel $channel_name per UID for session $sess_name"
50 function enable_channel_per_pid
()
55 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN enable-channel
--buffers-pid -u $channel_name -s $sess_name --switch-timer 100000 >/dev
/null
2>&1
56 ok $?
"Enable channel $channel_name per UID for session $sess_name"
59 function enable_metadata_per_uid
()
62 local channel_name
="metadata"
64 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN enable-channel
--buffers-uid -u $channel_name -s $sess_name --switch-timer 200000 >/dev
/null
2>&1
65 ok $?
"Enable channel $channel_name per UID for session $sess_name"
68 function enable_metadata_per_pid
()
71 local channel_name
="metadata"
73 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN enable-channel
--buffers-pid -u $channel_name -s $sess_name --switch-timer 200000 >/dev
/null
2>&1
74 ok $?
"Enable channel $channel_name per PID for session $sess_name"
77 function validate_trace
()
81 out
=$
(babeltrace
$TRACE_PATH |
grep $EVENT_NAME |
wc -l)
82 if [ $out -eq 0 ]; then
83 fail
"Trace validation"
84 diag
"No event(s) found. We are supposed to have at least one."
87 pass
"Trace validation"
88 diag
"Found $out event(s). Coherent."
95 function check_app_tmp_file
()
97 # Wait for the application file to appear indicating that at least one
98 # tracepoint has been fired.
99 while [ ! -f "$APP_TMP_FILE" ]; do
102 diag
"Removing test app temporary file $APP_TMP_FILE"
106 function start_trace_app
()
108 # Start application with a temporary file.
109 $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT --sync-after-first-event $APP_TMP_FILE &
111 APPS_PID
="${APPS_PID} ${!}"
112 ok
$ret "Start application to trace"
115 function start_check_trace_app
()
122 function wait_trace_apps
()
124 for p
in ${APPS_PID}; do
125 wait ${p} 2>/dev
/null
130 test_after_app_pid
() {
135 diag
"Start application AFTER tracing is started"
137 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
138 enable_metadata_per_pid
$SESSION_NAME
139 enable_channel_per_pid
$SESSION_NAME "channel0"
140 enable_ust_lttng_event_ok
$SESSION_NAME $EVENT_NAME "channel0"
141 start_lttng_tracing_ok
$SESSION_NAME
143 # Start application after tracing
144 start_check_trace_app
145 # After this point we are sure that at least one event has been hit.
147 # Make sure the application does not generate any more data,
148 # thus ensuring that we are not flushing a packet concurrently
149 # with validate_trace.
150 for p
in ${APPS_PID}; do
154 # Give time to the consumer to write inflight data.
160 for p
in ${APPS_PID}; do
162 wait ${p} 2>/dev
/null
164 stop_lttng_tracing_ok
$SESSION_NAME
165 destroy_lttng_session_ok
$SESSION_NAME
172 test_before_app_pid
() {
174 local tmp_file
="/tmp/lttng_test_ust.42.file"
178 diag
"Start application BEFORE tracing is started"
182 # Start application before tracing
183 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
184 enable_metadata_per_pid
$SESSION_NAME
185 enable_channel_per_pid
$SESSION_NAME "channel0"
186 enable_ust_lttng_event_ok
$SESSION_NAME $EVENT_NAME "channel0"
187 start_lttng_tracing_ok
$SESSION_NAME
190 # Let the application at least perform a flush!
193 # Make sure the application does not generate any more data,
194 # thus ensuring that we are not flushing a packet concurrently
195 # with validate_trace.
196 for p
in ${APPS_PID}; do
200 # Give time to the consumer to write inflight data.
206 for p
in ${APPS_PID}; do
208 wait ${p} 2>/dev
/null
211 stop_lttng_tracing_ok
$SESSION_NAME
212 destroy_lttng_session_ok
$SESSION_NAME
219 test_after_app_uid
() {
224 diag
"Start application AFTER tracing is started"
226 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
227 enable_metadata_per_uid
$SESSION_NAME
228 enable_channel_per_uid
$SESSION_NAME "channel0"
229 enable_ust_lttng_event_ok
$SESSION_NAME $EVENT_NAME "channel0"
230 start_lttng_tracing_ok
$SESSION_NAME
232 # Start application after tracing
233 start_check_trace_app
234 # After this point we are sure that at least one event has been hit.
236 # Make sure the application does not generate any more data,
237 # thus ensuring that we are not flushing a packet concurrently
238 # with validate_trace.
239 for p
in ${APPS_PID}; do
244 # Give time to the consumer to write inflight data.
250 for p
in ${APPS_PID}; do
252 wait ${p} 2>/dev
/null
254 stop_lttng_tracing_ok
$SESSION_NAME
255 destroy_lttng_session_ok
$SESSION_NAME
262 test_before_app_uid
() {
267 diag
"Start application BEFORE tracing is started"
269 # Start application before tracing
272 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
273 enable_metadata_per_uid
$SESSION_NAME
274 enable_channel_per_uid
$SESSION_NAME "channel0"
275 enable_ust_lttng_event_ok
$SESSION_NAME $EVENT_NAME "channel0"
276 start_lttng_tracing_ok
$SESSION_NAME
279 # Let the application at least perform a flush!
282 # Make sure the application does not generate any more data,
283 # thus ensuring that we are not flushing a packet concurrently
284 # with validate_trace.
285 for p
in ${APPS_PID}; do
289 # Give time to the consumer to write inflight data.
295 for p
in ${APPS_PID}; do
297 wait ${p} 2>/dev
/null
299 stop_lttng_tracing_ok
$SESSION_NAME
300 destroy_lttng_session_ok
$SESSION_NAME
307 # MUST set TESTDIR before calling those functions
308 plan_tests
$NUM_TESTS
310 print_test_banner
"$TEST_DESC"
313 "test_before_app_uid"
315 "test_before_app_pid"
319 TEST_COUNT
=${#TESTS[@]}
324 while [ $i -lt $TEST_COUNT ]; do
325 TRACE_PATH
=$
(mktemp
-d)