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17fe0490 CB |
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" | |
17fe0490 CB |
20 | |
21 | CURDIR=$(dirname $0)/ | |
9ac429ef | 22 | TESTDIR=$CURDIR/../../.. |
17fe0490 CB |
23 | NR_APP_ITER=10 |
24 | NR_ITER=1000000 | |
ea3a3cae CB |
25 | TESTAPP_PATH="$TESTDIR/utils/testapp" |
26 | TESTAPP_NAME="gen-ust-events" | |
27 | TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME" | |
17fe0490 CB |
28 | SESSION_NAME="high-throughput" |
29 | EVENT_NAME="tp:tptest" | |
30 | SESSIOND_CTRL_PORT=5342 | |
31 | SESSIOND_DATA_PORT=5343 | |
32 | DEFAULT_IF="lo" | |
33 | ||
34 | TRACE_PATH=$(mktemp -d) | |
35 | ||
5dca3876 | 36 | NUM_TESTS=104 |
d346ccad | 37 | |
9ac429ef | 38 | source $TESTDIR/utils/utils.sh |
17fe0490 | 39 | |
ea3a3cae CB |
40 | if [ ! -x "$TESTAPP_BIN" ]; then |
41 | BAIL_OUT "No UST events binary detected." | |
17fe0490 CB |
42 | fi |
43 | ||
2ce99983 MD |
44 | function reset_bw_limit |
45 | { | |
46 | tc qdisc del dev $DEFAULT_IF root >/dev/null 2>&1 | |
47 | return $? | |
48 | } | |
49 | ||
17fe0490 CB |
50 | function set_bw_limit |
51 | { | |
52 | limit=$1 | |
ffaed7f7 JD |
53 | ctrlportlimit=$(($limit/10)) |
54 | # failsafe to have at least 1kbit/s for control (in the case where $1 < 10) | |
55 | [ $ctrlportlimit = 0 ] && ctrlportlimit=1 | |
56 | # if $1 < 10, we might bust the limit set here, but the | |
57 | # parent qdisc (1:) will always limit us to the right max value | |
58 | dataportlimit=$((9*${ctrlportlimit})) | |
59 | ||
2ce99983 | 60 | diag "Set bandwidth limits to ${limit}kbits, ${ctrlportlimit} for control and ${dataportlimit} for data" |
d346ccad | 61 | |
17fe0490 | 62 | tc qdisc add dev $DEFAULT_IF root handle 1: htb default 15 >/dev/null 2>&1 |
2ce99983 MD |
63 | if [ $? -ne 0 ]; then |
64 | reset_bw_limit | |
65 | return 1 | |
66 | fi | |
17fe0490 | 67 | |
ffaed7f7 JD |
68 | # the total bandwidth is the limit set by the user |
69 | tc class add dev $DEFAULT_IF parent 1: classid 1:1 htb rate ${limit}kbit ceil ${limit}kbit >/dev/null 2>&1 | |
2ce99983 MD |
70 | if [ $? -ne 0 ]; then |
71 | reset_bw_limit | |
72 | return 1 | |
73 | fi | |
ffaed7f7 JD |
74 | # 1/10 of the bandwidth guaranteed and traffic prioritized for the control port |
75 | 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 | |
2ce99983 MD |
76 | if [ $? -ne 0 ]; then |
77 | reset_bw_limit | |
78 | return 1 | |
79 | fi | |
ffaed7f7 JD |
80 | # 9/10 of the bandwidth guaranteed and can borrow up to the total bandwidth (if unused) |
81 | 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 | |
2ce99983 MD |
82 | if [ $? -ne 0 ]; then |
83 | reset_bw_limit | |
84 | return 1 | |
85 | fi | |
17fe0490 | 86 | |
ffaed7f7 JD |
87 | # filter to assign control traffic to the 1:10 class |
88 | 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 | |
2ce99983 MD |
89 | if [ $? -ne 0 ]; then |
90 | reset_bw_limit | |
91 | return 1 | |
92 | fi | |
ffaed7f7 JD |
93 | # filter to assign data traffic to the 1:11 class |
94 | 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 | |
2ce99983 MD |
95 | if [ $? -ne 0 ]; then |
96 | reset_bw_limit | |
97 | return 1 | |
98 | fi | |
d346ccad | 99 | |
2ce99983 | 100 | return 0 |
17fe0490 CB |
101 | } |
102 | ||
103 | function create_lttng_session_with_uri | |
104 | { | |
105 | sess_name=$1 | |
106 | uri=$2 | |
107 | # Create session with custom URI | |
108 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN create -U $uri $sess_name >/dev/null 2>&1 | |
d346ccad | 109 | ok $? "Create session with uri $uri" |
17fe0490 CB |
110 | } |
111 | ||
17fe0490 CB |
112 | function run_apps |
113 | { | |
114 | for i in `seq 1 $NR_APP_ITER`; do | |
b2068598 DG |
115 | # With bandwidth limitation, unfortunately, application easily timeout |
116 | # due to very slow communication between the consumer and relayd making | |
117 | # the status reply from the consumer quite slow thus delaying the | |
118 | # registration done message. | |
ea3a3cae | 119 | LTTNG_UST_REGISTER_TIMEOUT=-1 $TESTAPP_BIN $NR_ITER & >/dev/null 2>&1 |
17fe0490 CB |
120 | done |
121 | } | |
122 | ||
17fe0490 CB |
123 | function test_high_throughput |
124 | { | |
125 | NETWORK_URI="net://localhost" | |
126 | create_lttng_session_with_uri $SESSION_NAME $NETWORK_URI | |
c4926bb5 | 127 | enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME |
e563bbdb | 128 | start_lttng_tracing_ok $SESSION_NAME |
17fe0490 | 129 | run_apps |
5dca3876 MD |
130 | diag "Waiting for applications to end" |
131 | wait | |
132 | pass "waiting done" | |
96340a01 | 133 | stop_lttng_tracing_ok $SESSION_NAME |
67b4c664 | 134 | destroy_lttng_session_ok $SESSION_NAME |
17fe0490 CB |
135 | validate_event_count |
136 | } | |
137 | ||
138 | function validate_event_count | |
139 | { | |
140 | ||
141 | TEMP_FILE=$(mktemp) | |
142 | TEMP_FILE_2=$(mktemp) | |
143 | ||
144 | traced=$(babeltrace $TRACE_PATH 2>/dev/null | wc -l) | |
145 | babeltrace $TRACE_PATH >/dev/null 2>$TEMP_FILE_2 | |
146 | ||
147 | cat $TEMP_FILE_2 | cut -f4 -d " " >$TEMP_FILE | |
148 | ||
149 | dropped=0 | |
150 | while read line; | |
151 | do | |
152 | let dropped=$dropped+$line | |
153 | done < $TEMP_FILE | |
154 | ||
155 | let total=$dropped+$traced | |
156 | let wanted=$NR_APP_ITER*$NR_ITER | |
157 | ||
17fe0490 | 158 | if [ $wanted -ne $total ]; then |
d346ccad CB |
159 | fail "Validate trace event count" |
160 | diag "Expected $wanted. Dropped $dropped. Recorded $traced. Total $total... " | |
17fe0490 CB |
161 | return 1 |
162 | else | |
d346ccad CB |
163 | pass "Validate trace event count" |
164 | diag "Expected $wanted. Dropped $dropped. Recorded $traced. Total $total... " | |
b2068598 | 165 | |
b2068598 DG |
166 | rm -rf $TRACE_PATH |
167 | rm $TEMP_FILE $TEMP_FILE_2 | |
168 | ||
17fe0490 CB |
169 | return 0 |
170 | fi | |
171 | } | |
172 | ||
173 | function interrupt_cleanup() | |
174 | { | |
d346ccad | 175 | diag "*** Exiting ***" |
17fe0490 | 176 | reset_bw_limit |
2ce99983 MD |
177 | # invoke utils cleanup |
178 | full_cleanup | |
17fe0490 CB |
179 | exit 1 |
180 | } | |
181 | ||
d346ccad | 182 | plan_tests $NUM_TESTS |
17fe0490 | 183 | |
e3bef725 CB |
184 | print_test_banner "$TEST_DESC" |
185 | ||
d346ccad CB |
186 | if [ "$(id -u)" == "0" ]; then |
187 | isroot=1 | |
188 | else | |
189 | isroot=0 | |
190 | fi | |
17fe0490 | 191 | |
d346ccad CB |
192 | skip $isroot "Root access is needed to set bandwith limits. Skipping all tests." $NUM_TESTS || |
193 | { | |
17fe0490 | 194 | |
d346ccad | 195 | # Catch sigint and try to cleanup limits |
2ce99983 | 196 | trap interrupt_cleanup SIGTERM SIGINT |
d346ccad CB |
197 | |
198 | BW_LIMITS=(3200 1600 800 400 200 100 50 25) | |
199 | for BW in ${BW_LIMITS[@]}; | |
200 | do | |
201 | diag "Test high-throughput with bandwidth limit set to ${BW}kbits" | |
491c49eb | 202 | |
d346ccad | 203 | set_bw_limit $BW |
2ce99983 | 204 | ok $? "Setting bandwidth limit" |
d346ccad CB |
205 | |
206 | start_lttng_sessiond | |
207 | start_lttng_relayd "-o $TRACE_PATH" | |
208 | test_high_throughput | |
209 | result=$? | |
210 | stop_lttng_relayd | |
211 | stop_lttng_sessiond | |
212 | reset_bw_limit | |
2ce99983 | 213 | ok $? "Reset bandwith limits" |
d346ccad CB |
214 | done |
215 | } |