tests/regression/tools/tracefile-limits/test_tracefile_count

   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 count limits"
  19
  20 CURDIR=$(dirname $0)/
  21 TESTDIR=$CURDIR/../../..
  22
  23 TESTAPP_PATH="$TESTDIR/utils/testapp"
  24 TESTAPP_NAME="gen-ust-events"
  25 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  26
  27 STATS_BIN="$TESTDIR/utils/babelstats.pl"
  28 NUM_TESTS=146
  29
  30 source $TESTDIR/utils/utils.sh
  31
  32 if [ ! -x "$TESTAPP_BIN" ]; then
  33         BAIL_OUT "No UST events binary detected."
  34 fi
  35
  36 function wait_apps
  37 {
  38         while [ -n "$(pidof $TESTAPP_NAME)" ]; do
  39                 sleep 0.5
  40         done
  41         pass "Wait for applications to end"
  42 }
  43
  44 function enable_lttng_channel_count_limit ()
  45 {
  46         sess_name="$1"
  47         channel_name="$2"
  48         tracefile_count_limit="$3"
  49
  50         test_name="Enable channel $channel_name "
  51         test_name+="for session $sess_name: "
  52         test_name+="$tracefile_count_limit tracefiles"
  53
  54         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
  55             -u $channel_name -s $sess_name \
  56             -C 4096 -W $tracefile_count_limit \
  57             --overwrite >/dev/null 2>&1
  58
  59         ok $? "$test_name"
  60 }
  61
  62 function enable_ust_lttng_event_per_channel ()
  63 {
  64         sess_name="$1"
  65         event_name="$2"
  66         channel_name="$3"
  67
  68         test_name="Enable event $event_name "
  69         test_name+="for session $sess_name "
  70         test_name+="in channel $channel_name"
  71
  72         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \
  73             -s $sess_name -u -c $channel_name >/dev/null 2>&1
  74
  75         ok $? "$test_name"
  76 }
  77
  78 function validate_min_max
  79 {
  80         stats="$1"
  81         field="$2"
  82         expected_min="$3"
  83         expected_max="$4"
  84
  85         echo $stats | grep -q -E "$field $expected_min $expected_max"
  86         return $?
  87 }
  88
  89 function validate_file_count
  90 {
  91         path="$1"
  92         file_pattern="$2"
  93         expected_max_count="$3"
  94
  95         count=`find $path -name "$file_pattern" -type f | wc -l`
  96
  97         if [ "$count" -gt "$expected_max_count" ]; then
  98             fail "Validate file count: $file_pattern"
  99             diag "File count: $count expected: $expected_max_count"
 100         else
 101             pass "Validate file count: $file_pattern"
 102         fi
 103 }
 104
 105 function test_tracefile_count_limit ()
 106 {
 107         count_limit="$1"
 108         trace_path=$(mktemp -d)
 109         session_name=$(randstring 16 0)
 110         channel_name="channel"
 111         event_name="tp:tptest"
 112         num_iter=1000
 113         expected_max=$(($num_iter - 1))
 114
 115         diag "Test tracefile count limit : $count_limit tracefiles"
 116
 117         create_lttng_session $session_name $trace_path
 118
 119         enable_lttng_channel_count_limit \
 120             $session_name $channel_name $count_limit
 121
 122         enable_ust_lttng_event_per_channel \
 123             $session_name $event_name $channel_name
 124
 125         start_lttng_tracing $session_name
 126
 127         $TESTAPP_BIN $num_iter >/dev/null 2>&1 &
 128
 129         wait_apps
 130
 131         stop_lttng_tracing $session_name
 132
 133         destroy_lttng_session $session_name
 134
 135         # Validate tracing dir
 136
 137         num_cpu=`nproc`
 138
 139         for cpuno in $(seq 0 $(($num_cpu - 1)))
 140         do
 141                 validate_file_count \
 142                     $trace_path "${channel_name}_${cpuno}_*" $count_limit
 143         done
 144
 145         # Validate tracing data
 146
 147         stats=`babeltrace $trace_path | $STATS_BIN --tracepoint $event_name`
 148
 149         validate_min_max "$stats" "intfield" "[0-9]+" "$expected_max"
 150         ok $? "Trace validation - intfield"
 151
 152         validate_min_max "$stats" "netintfield" "[0-9]+" "$expected_max"
 153         ok $? "Trace validation - netintfield"
 154
 155         validate_min_max "$stats" "longfield" "[0-9]+" "$expected_max"
 156         ok $? "Trace validation - longfield"
 157
 158         rm -rf $trace_path
 159 }
 160
 161 plan_tests $NUM_TESTS
 162
 163 print_test_banner "$TEST_DESC"
 164
 165 start_lttng_sessiond
 166
 167 LIMITS=("1" "2" "4" "8" "10" "16" "32" "64")
 168
 169 for limit in ${LIMITS[@]};
 170 do
 171         test_tracefile_count_limit $limit
 172 done
 173
 174 stop_lttng_sessiond