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1 | #!/bin/bash |
2 | # | |
3 | # Copyright (C) - 2012 Christian Babeux <christian.babeux@efficios.com> | |
4 | # David Goulet <dgoulet@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 | |
b2068598 DG |
18 | |
19 | TEST_DESC="Streaming - High throughput with bandwidth limits" | |
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20 | |
21 | CURDIR=$(dirname $0)/ | |
9ac429ef | 22 | TESTDIR=$CURDIR/../../.. |
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23 | NR_APP_ITER=10 |
24 | NR_ITER=1000000 | |
25 | BIN_NAME="gen-ust-events" | |
26 | SESSION_NAME="high-throughput" | |
27 | EVENT_NAME="tp:tptest" | |
28 | SESSIOND_CTRL_PORT=5342 | |
29 | SESSIOND_DATA_PORT=5343 | |
30 | DEFAULT_IF="lo" | |
31 | ||
32 | TRACE_PATH=$(mktemp -d) | |
33 | ||
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34 | NUM_TESTS=112 |
35 | ||
9ac429ef | 36 | source $TESTDIR/utils/utils.sh |
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37 | |
38 | print_test_banner "$TEST_DESC" | |
39 | ||
40 | if [ ! -x "$CURDIR/$BIN_NAME" ]; then | |
d346ccad | 41 | BAIL_OUT "No UST nevents binary detected." |
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42 | fi |
43 | ||
44 | function set_bw_limit | |
45 | { | |
46 | limit=$1 | |
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47 | ctrlportlimit=$(($limit/10)) |
48 | # failsafe to have at least 1kbit/s for control (in the case where $1 < 10) | |
49 | [ $ctrlportlimit = 0 ] && ctrlportlimit=1 | |
50 | # if $1 < 10, we might bust the limit set here, but the | |
51 | # parent qdisc (1:) will always limit us to the right max value | |
52 | dataportlimit=$((9*${ctrlportlimit})) | |
53 | ||
d346ccad | 54 | |
17fe0490 | 55 | tc qdisc add dev $DEFAULT_IF root handle 1: htb default 15 >/dev/null 2>&1 |
17fe0490 | 56 | |
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57 | # the total bandwidth is the limit set by the user |
58 | tc class add dev $DEFAULT_IF parent 1: classid 1:1 htb rate ${limit}kbit ceil ${limit}kbit >/dev/null 2>&1 | |
59 | # 1/10 of the bandwidth guaranteed and traffic prioritized for the control port | |
60 | tc class add dev $DEFAULT_IF parent 1:1 classid 1:10 htb rate ${ctrlportlimit}kbit ceil ${limit}kbit prio 1 >/dev/null 2>&1 | |
61 | # 9/10 of the bandwidth guaranteed and can borrow up to the total bandwidth (if unused) | |
62 | tc class add dev $DEFAULT_IF parent 1:1 classid 1:11 htb rate ${dataportlimit}kbit ceil ${limit}kbit prio 2 >/dev/null 2>&1 | |
17fe0490 | 63 | |
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64 | # filter to assign control traffic to the 1:10 class |
65 | tc filter add dev $DEFAULT_IF parent 1: protocol ip u32 match ip dport $SESSIOND_CTRL_PORT 0xffff flowid 1:10 >/dev/null 2>&1 | |
66 | # filter to assign data traffic to the 1:11 class | |
67 | tc filter add dev $DEFAULT_IF parent 1: protocol ip u32 match ip dport $SESSIOND_DATA_PORT 0xffff flowid 1:11 >/dev/null 2>&1 | |
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68 | |
69 | ok $? "Set bandwidth limits to ${limit}kbits, ${ctrlportlimit} for control and ${dataportlimit} for data" | |
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70 | } |
71 | ||
72 | function reset_bw_limit | |
73 | { | |
17fe0490 | 74 | tc qdisc del dev $DEFAULT_IF root >/dev/null 2>&1 |
d346ccad | 75 | ok $? "Reset bandwith limits" |
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76 | } |
77 | ||
78 | function create_lttng_session_with_uri | |
79 | { | |
80 | sess_name=$1 | |
81 | uri=$2 | |
82 | # Create session with custom URI | |
83 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN create -U $uri $sess_name >/dev/null 2>&1 | |
d346ccad | 84 | ok $? "Create session with uri $uri" |
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85 | } |
86 | ||
87 | function enable_lttng_consumer | |
88 | { | |
89 | uri=$1 | |
90 | # Create session with custom URI | |
91 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-consumer -u $uri >/dev/null 2>&1 | |
d346ccad | 92 | ok $? "Enable consumer with uri $uri" |
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93 | } |
94 | ||
95 | function run_apps | |
96 | { | |
97 | for i in `seq 1 $NR_APP_ITER`; do | |
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98 | # With bandwidth limitation, unfortunately, application easily timeout |
99 | # due to very slow communication between the consumer and relayd making | |
100 | # the status reply from the consumer quite slow thus delaying the | |
101 | # registration done message. | |
bfdaf0fd | 102 | LTTNG_UST_REGISTER_TIMEOUT=-1 ./$CURDIR/$BIN_NAME $NR_ITER & >/dev/null 2>&1 |
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103 | done |
104 | } | |
105 | ||
106 | function wait_apps | |
107 | { | |
17fe0490 | 108 | while [ -n "$(pidof $BIN_NAME)" ]; do |
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109 | sleep 1 |
110 | done | |
d346ccad | 111 | pass "Wait for applications to end" |
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112 | } |
113 | ||
114 | function test_high_throughput | |
115 | { | |
116 | NETWORK_URI="net://localhost" | |
117 | create_lttng_session_with_uri $SESSION_NAME $NETWORK_URI | |
118 | enable_lttng_consumer $NETWORK_URI | |
119 | enable_ust_lttng_event $SESSION_NAME $EVENT_NAME | |
120 | start_lttng_tracing $SESSION_NAME | |
121 | run_apps | |
122 | wait_apps | |
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123 | stop_lttng_tracing $SESSION_NAME |
124 | destroy_lttng_session $SESSION_NAME | |
125 | validate_event_count | |
126 | } | |
127 | ||
128 | function validate_event_count | |
129 | { | |
130 | ||
131 | TEMP_FILE=$(mktemp) | |
132 | TEMP_FILE_2=$(mktemp) | |
133 | ||
134 | traced=$(babeltrace $TRACE_PATH 2>/dev/null | wc -l) | |
135 | babeltrace $TRACE_PATH >/dev/null 2>$TEMP_FILE_2 | |
136 | ||
137 | cat $TEMP_FILE_2 | cut -f4 -d " " >$TEMP_FILE | |
138 | ||
139 | dropped=0 | |
140 | while read line; | |
141 | do | |
142 | let dropped=$dropped+$line | |
143 | done < $TEMP_FILE | |
144 | ||
145 | let total=$dropped+$traced | |
146 | let wanted=$NR_APP_ITER*$NR_ITER | |
147 | ||
17fe0490 | 148 | if [ $wanted -ne $total ]; then |
d346ccad CB |
149 | fail "Validate trace event count" |
150 | diag "Expected $wanted. Dropped $dropped. Recorded $traced. Total $total... " | |
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151 | return 1 |
152 | else | |
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153 | pass "Validate trace event count" |
154 | diag "Expected $wanted. Dropped $dropped. Recorded $traced. Total $total... " | |
b2068598 | 155 | |
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156 | rm -rf $TRACE_PATH |
157 | rm $TEMP_FILE $TEMP_FILE_2 | |
158 | ||
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159 | return 0 |
160 | fi | |
161 | } | |
162 | ||
163 | function interrupt_cleanup() | |
164 | { | |
d346ccad | 165 | diag "*** Exiting ***" |
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166 | stop_lttng_relayd |
167 | stop_lttng_sessiond | |
168 | reset_bw_limit | |
169 | exit 1 | |
170 | } | |
171 | ||
d346ccad | 172 | plan_tests $NUM_TESTS |
17fe0490 | 173 | |
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174 | if [ "$(id -u)" == "0" ]; then |
175 | isroot=1 | |
176 | else | |
177 | isroot=0 | |
178 | fi | |
17fe0490 | 179 | |
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180 | skip $isroot "Root access is needed to set bandwith limits. Skipping all tests." $NUM_TESTS || |
181 | { | |
17fe0490 | 182 | |
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183 | # Catch sigint and try to cleanup limits |
184 | trap interrupt_cleanup SIGINT | |
185 | ||
186 | BW_LIMITS=(3200 1600 800 400 200 100 50 25) | |
187 | for BW in ${BW_LIMITS[@]}; | |
188 | do | |
189 | diag "Test high-throughput with bandwidth limit set to ${BW}kbits" | |
190 | set_bw_limit $BW | |
191 | ||
192 | start_lttng_sessiond | |
193 | start_lttng_relayd "-o $TRACE_PATH" | |
194 | test_high_throughput | |
195 | result=$? | |
196 | stop_lttng_relayd | |
197 | stop_lttng_sessiond | |
198 | reset_bw_limit | |
199 | done | |
200 | } |