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