261e0b8b3f3f40d72dbd96f18a163f077a5e51ec
[lttng-tools.git] / tests / regression / ust / blocking / test_blocking
1 #!/bin/bash
2 #
3 # Copyright (C) - 2015 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
4 # Copyright (C) - 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 #
6 # This library is free software; you can redistribute it and/or modify it under
7 # the terms of the GNU Lesser General Public License as published by the Free
8 # Software Foundation; version 2.1 of the License.
9 #
10 # This library is distributed in the hope that it will be useful, but WITHOUT
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
13 # details.
14 #
15 # You should have received a copy of the GNU Lesser General Public License
16 # along with this library; if not, write to the Free Software Foundation, Inc.,
17 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 TEST_DESC="UST - Blocking mode"
19
20 CURDIR=$(dirname $0)/
21 TESTDIR=$CURDIR/../../..
22 SESSION_NAME="blocking"
23
24 TESTAPP_PATH="$TESTDIR/utils/testapp"
25 TESTAPP_NAME="gen-ust-events"
26 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
27 EVENT_NAME="tp:tptest"
28
29 NUM_TESTS=45
30
31 source $TESTDIR/utils/utils.sh
32
33 # MUST set TESTDIR before calling those functions
34 # Run app on CPU 0 to ensure we only write in a single ring buffer.
35 function run_app()
36 {
37 taskset 0x00000001 $TESTAPP_BIN $NUM_EVENT
38 ok $? "Application done"
39 }
40
41 function test_ust_implicit_no_blocking()
42 {
43 NUM_EVENT=500000
44 diag "UST implicit non-blocking mode (default): will hang if fails"
45
46 # Test without the plugin
47 start_lttng_sessiond
48 create_lttng_session_no_output $SESSION_NAME
49 enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
50 start_lttng_tracing_ok $SESSION_NAME
51 run_app
52 stop_lttng_tracing_ok $SESSION_NAME
53 destroy_lttng_session_ok $SESSION_NAME
54 stop_lttng_sessiond
55
56 ok 0 "Does not hang"
57 }
58
59 function test_ust_explicit_no_blocking()
60 {
61 NUM_EVENT=500000
62 diag "UST explicit non-blocking mode: will hang if fails"
63
64 # Test without the plugin
65 start_lttng_sessiond
66 create_lttng_session_no_output $SESSION_NAME
67 enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
68 start_lttng_tracing_ok $SESSION_NAME
69 LTTNG_UST_BLOCKING_RETRY_TIMEOUT=0 run_app
70 stop_lttng_tracing_ok $SESSION_NAME
71 destroy_lttng_session_ok $SESSION_NAME
72 stop_lttng_sessiond
73
74 ok 0 "Does not hang"
75 }
76
77 function test_ust_timeout_no_blocking()
78 {
79 NUM_EVENT=12500
80 diag "UST 1ms timeout retry mode: will hang if fails"
81
82 start_lttng_sessiond
83 create_lttng_session_no_output $SESSION_NAME
84 enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
85 start_lttng_tracing_ok $SESSION_NAME
86 # retry timeout 1ms
87 LTTNG_UST_BLOCKING_RETRY_TIMEOUT=1 run_app
88 stop_lttng_tracing_ok $SESSION_NAME
89 destroy_lttng_session_ok $SESSION_NAME
90 stop_lttng_sessiond
91
92 ok 0 "Does not hang"
93 }
94
95 function test_ust_snapshot_no_blocking()
96 {
97 NUM_EVENT=500000
98 diag "UST blocking mode: don't block in snapshot mode"
99
100 # Test without the plugin
101 start_lttng_sessiond
102 create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot
103 enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
104 start_lttng_tracing_ok $SESSION_NAME
105 LTTNG_UST_BLOCKING_RETRY_TIMEOUT=-1 run_app
106 stop_lttng_tracing_ok $SESSION_NAME
107 destroy_lttng_session_ok $SESSION_NAME
108 stop_lttng_sessiond
109
110 ok 0 "Does not hang"
111 }
112
113 function test_ust_blocking_no_discard()
114 {
115 NUM_EVENT=500000
116 diag "UST blocking mode: no event discarded"
117
118 # Test without the plugin
119 start_lttng_sessiond
120 create_lttng_session_ok $SESSION_NAME $TRACE_PATH
121 enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
122 start_lttng_tracing_ok $SESSION_NAME
123 # infinite retry timeout
124 LTTNG_UST_BLOCKING_RETRY_TIMEOUT=-1 run_app
125 stop_lttng_tracing_ok $SESSION_NAME
126 destroy_lttng_session_ok $SESSION_NAME
127 stop_lttng_sessiond
128
129 nr_events=$(babeltrace $TRACE_PATH 2>/dev/null | wc -l)
130
131 test $nr_events -eq $NUM_EVENT
132 ok $? "No event lost with UST blocking mode: found $nr_events expect $NUM_EVENT"
133 }
134
135 plan_tests $NUM_TESTS
136
137 print_test_banner "$TEST_DESC"
138
139 TESTS=(
140 "test_ust_implicit_no_blocking"
141 "test_ust_explicit_no_blocking"
142 "test_ust_timeout_no_blocking"
143 "test_ust_snapshot_no_blocking"
144 "test_ust_blocking_no_discard"
145 )
146
147 TEST_COUNT=${#TESTS[@]}
148 i=0
149
150 while [ "$i" -lt "$TEST_COUNT" ]; do
151
152 TRACE_PATH=$(mktemp -d)
153
154 # Execute test
155 ${TESTS[$i]}
156
157 rm -rf $TRACE_PATH
158
159 let "i++"
160 done
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