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34497a63 CB |
1 | #!/bin/bash |
2 | # | |
3 | # Copyright (C) - 2013 Christian Babeux <christian.babeux@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 | ||
18 | TEST_DESC="Tracefile size limits" | |
19 | ||
20 | CURDIR=$(dirname $0)/ | |
21 | TESTDIR=$CURDIR/../../.. | |
22 | ||
23 | NR_ITER=1000 | |
24 | ||
034a7848 MJ |
25 | PAGE_SIZE=$(getconf PAGE_SIZE) |
26 | ||
34497a63 CB |
27 | TESTAPP_PATH="$TESTDIR/utils/testapp" |
28 | TESTAPP_NAME="gen-ust-events" | |
29 | TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME" | |
30 | ||
ea263060 | 31 | NUM_TESTS=66 |
34497a63 CB |
32 | |
33 | source $TESTDIR/utils/utils.sh | |
34 | ||
35 | if [ ! -x "$TESTAPP_BIN" ]; then | |
36 | BAIL_OUT "No UST events binary detected." | |
37 | fi | |
38 | ||
34497a63 CB |
39 | function enable_lttng_channel_size_limit () |
40 | { | |
41 | sess_name="$1" | |
42 | channel_name="$2" | |
43 | tracefile_size_limit="$3" | |
44 | ||
45 | test_name="Enable channel $channel_name " | |
46 | test_name+="for session $sess_name: " | |
47 | test_name+="$tracefile_size_limit bytes tracefile limit" | |
48 | ||
49 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \ | |
c1b8e6f8 | 50 | -u $channel_name -s $sess_name --buffers-pid \ |
88ec6b80 | 51 | --subbuf-size=$PAGE_SIZE \ |
34497a63 CB |
52 | -C $tracefile_size_limit >/dev/null 2>&1 |
53 | ||
54 | ok $? "$test_name" | |
55 | } | |
56 | ||
57 | function enable_ust_lttng_event_per_channel () | |
58 | { | |
59 | sess_name="$1" | |
60 | event_name="$2" | |
61 | channel_name="$3" | |
62 | ||
63 | test_name="Enable event $event_name " | |
64 | test_name+="for session $sess_name " | |
65 | test_name+="in channel $channel_name" | |
66 | ||
67 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \ | |
68 | -s $sess_name -u -c $channel_name >/dev/null 2>&1 | |
69 | ||
70 | ok $? "$test_name" | |
71 | } | |
72 | ||
73 | function check_file_size () | |
74 | { | |
75 | path="$1" | |
76 | file_pattern="$2" | |
77 | expected_max_size="$3" | |
78 | ||
79 | find $path -name "$file_pattern" -exec stat -c '%n %s' {} \; \ | |
80 | | while read file_info; | |
81 | do | |
82 | name=$(echo $file_info | cut -f1 -d ' ') | |
83 | size=$(echo $file_info | cut -f2 -d ' ') | |
84 | ||
85 | if [ "$size" -gt "$expected_max_size" ]; then | |
86 | diag_msg="file: $name size: $size" | |
87 | diag_msg+="expected maximum size: $expected_max_size" | |
88 | diag "$diag_msg" | |
89 | exit 1 | |
90 | fi | |
91 | done | |
92 | ||
93 | ok $? "File size validation" | |
94 | } | |
95 | ||
96 | function test_tracefile_size_limit () | |
97 | { | |
98 | size_limit="$1" | |
99 | trace_path=$(mktemp -d) | |
100 | session_name=$(randstring 16 0) | |
101 | channel_name="channel" | |
102 | event_name="tp:tptest" | |
103 | ||
104 | diag "Test tracefile size limit : $size_limit bytes" | |
105 | ||
bf6ae429 | 106 | create_lttng_session_ok $session_name $trace_path |
34497a63 CB |
107 | |
108 | enable_lttng_channel_size_limit \ | |
109 | $session_name $channel_name $size_limit | |
110 | ||
111 | enable_ust_lttng_event_per_channel \ | |
112 | $session_name $event_name $channel_name | |
113 | ||
e563bbdb | 114 | start_lttng_tracing_ok $session_name |
34497a63 | 115 | |
6c4a91d6 | 116 | $TESTAPP_BIN -i $NR_ITER >/dev/null 2>&1 |
34497a63 | 117 | |
96340a01 | 118 | stop_lttng_tracing_ok $session_name |
34497a63 | 119 | |
67b4c664 | 120 | destroy_lttng_session_ok $session_name |
34497a63 CB |
121 | |
122 | # Validate file size, each one shall be no larger than the | |
123 | # specified size limit | |
124 | ||
125 | check_file_size $trace_path "${channel_name}_*" $size_limit | |
126 | ||
127 | # Validate tracing data, we should at least have some events | |
128 | ||
129 | validate_trace $event_name $trace_path | |
130 | ||
131 | rm -rf $trace_path | |
132 | } | |
133 | ||
034a7848 MJ |
134 | function test_tracefile_size_limit_pagesize () |
135 | { | |
136 | # Set a size limit lower than the page_size | |
137 | size_limit="$(($PAGE_SIZE-2))" | |
138 | trace_path=$(mktemp -d) | |
139 | session_name=$(randstring 16 0) | |
140 | channel_name="channel" | |
141 | event_name="tp:tptest" | |
142 | ||
143 | diag "Test tracefile size limit lower than PAGE_SIZE : $size_limit bytes" | |
144 | ||
145 | create_lttng_session_ok $session_name $trace_path | |
146 | ||
147 | enable_lttng_channel_size_limit \ | |
148 | $session_name $channel_name $size_limit | |
149 | ||
150 | enable_ust_lttng_event_per_channel \ | |
151 | $session_name $event_name $channel_name | |
152 | ||
153 | start_lttng_tracing_ok $session_name | |
154 | ||
6c4a91d6 | 155 | $TESTAPP_BIN -i $NR_ITER >/dev/null 2>&1 |
034a7848 MJ |
156 | |
157 | stop_lttng_tracing_ok $session_name | |
158 | ||
159 | destroy_lttng_session_ok $session_name | |
160 | ||
161 | # Validate file size, expect file size to be equal to the page size | |
162 | ||
163 | check_file_size $trace_path "${channel_name}_*" $PAGE_SIZE | |
164 | ||
165 | # Validate tracing data, we should at least have some events | |
166 | ||
167 | validate_trace $event_name $trace_path | |
168 | ||
169 | rm -rf $trace_path | |
170 | } | |
171 | ||
34497a63 CB |
172 | plan_tests $NUM_TESTS |
173 | ||
174 | print_test_banner "$TEST_DESC" | |
175 | ||
176 | start_lttng_sessiond | |
177 | ||
034a7848 MJ |
178 | # Test with multiples of PAGE_SIZE |
179 | LIMITS=("$(($PAGE_SIZE))" | |
180 | "$(($PAGE_SIZE*2))" | |
181 | "$(($PAGE_SIZE*4))" | |
182 | "$(($PAGE_SIZE*8))" | |
183 | "$(($PAGE_SIZE*16))" | |
184 | "$(($PAGE_SIZE*32))") | |
34497a63 CB |
185 | |
186 | for limit in ${LIMITS[@]}; | |
187 | do | |
188 | test_tracefile_size_limit $limit | |
189 | done | |
190 | ||
034a7848 MJ |
191 | # Test with a value that is not a multiple of PAGE_SIZE |
192 | test_tracefile_size_limit "$(($PAGE_SIZE+1024))" | |
193 | ||
194 | # Test that a value lower than the PAGE_SIZE is rounded to it | |
195 | test_tracefile_size_limit_pagesize | |
196 | ||
34497a63 | 197 | stop_lttng_sessiond |