tests/regression/tools/tracefile-limits/test_tracefile_count

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2013 Christian Babeux <christian.babeux@efficios.com>
   4 #
   5 # SPDX-License-Identifier: LGPL-2.1-only
   6
   7 TEST_DESC="Tracefile count limits"
   8
   9 CURDIR=$(dirname $0)/
  10 TESTDIR=$CURDIR/../../..
  11
  12 TESTAPP_PATH="$TESTDIR/utils/testapp"
  13 TESTAPP_NAME="gen-ust-events"
  14 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  15
  16 STATS_BIN="$TESTDIR/utils/babelstats.pl"
  17 NUM_TESTS=74
  18
  19 NUM_CPUS=`nproc`
  20 PAGE_SIZE=$(getconf PAGE_SIZE)
  21
  22 source $TESTDIR/utils/utils.sh
  23
  24 if [ ! -x "$TESTAPP_BIN" ]; then
  25         BAIL_OUT "No UST events binary detected."
  26 fi
  27
  28 function enable_lttng_channel_count_limit ()
  29 {
  30         sess_name="$1"
  31         channel_name="$2"
  32         tracefile_count_limit="$3"
  33
  34         test_name="Enable channel $channel_name "
  35         test_name+="for session $sess_name: "
  36         test_name+="$tracefile_count_limit tracefiles"
  37
  38         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
  39             -u $channel_name -s $sess_name \
  40             -C $(($PAGE_SIZE*3)) -W $tracefile_count_limit \
  41             --overwrite >/dev/null 2>&1
  42
  43         ok $? "$test_name"
  44 }
  45
  46 function enable_ust_lttng_event_per_channel ()
  47 {
  48         sess_name="$1"
  49         event_name="$2"
  50         channel_name="$3"
  51
  52         test_name="Enable event $event_name "
  53         test_name+="for session $sess_name "
  54         test_name+="in channel $channel_name"
  55
  56         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \
  57             -s $sess_name -u -c $channel_name >/dev/null 2>&1
  58
  59         ok $? "$test_name"
  60 }
  61
  62 function validate_min_max
  63 {
  64         stats="$1"
  65         field="$2"
  66         expected_min="$3"
  67         expected_max="$4"
  68
  69         echo $stats | grep -q -E "$field $expected_min $expected_max"
  70         return $?
  71 }
  72
  73 function validate_file_count
  74 {
  75         path="$1"
  76         file_pattern="$2"
  77         expected_max_count="$3"
  78
  79         count=`find $path -name "$file_pattern" -type f \( ! -iname "*.idx" \) | wc -l`
  80
  81         if [ "$count" -gt "$expected_max_count" ]; then
  82             fail "Validate file count: $file_pattern"
  83             diag "File count: $count expected: $expected_max_count"
  84         else
  85             pass "Validate file count: $file_pattern"
  86         fi
  87 }
  88
  89 function test_tracefile_count_limit ()
  90 {
  91         count_limit="$1"
  92         trace_path=$(mktemp -d)
  93         session_name=$(randstring 16 0)
  94         channel_name="channel"
  95         event_name="tp:tptest"
  96         num_iter=100000
  97         expected_max=$(($num_iter - 1))
  98
  99         diag "Test tracefile count limit : $count_limit tracefiles"
 100
 101         create_lttng_session_ok $session_name $trace_path
 102
 103         enable_lttng_channel_count_limit \
 104             $session_name $channel_name $count_limit
 105
 106         enable_ust_lttng_event_per_channel \
 107             $session_name $event_name $channel_name
 108
 109         start_lttng_tracing_ok $session_name
 110
 111         $TESTAPP_BIN -i $num_iter >/dev/null 2>&1
 112
 113         stop_lttng_tracing_ok $session_name
 114
 115         destroy_lttng_session_ok $session_name
 116
 117         # Validate tracing dir
 118
 119         for cpuno in $(seq 0 $(($NUM_CPUS - 1)))
 120         do
 121                 validate_file_count \
 122                     $trace_path "${channel_name}_${cpuno}_*" $count_limit
 123         done
 124
 125         # Validate tracing data
 126
 127         stats=`babeltrace $trace_path | $STATS_BIN --tracepoint $event_name`
 128
 129         validate_min_max "$stats" "intfield" "[0-9]+" "$expected_max"
 130         ok $? "Trace validation - intfield"
 131
 132         validate_min_max "$stats" "netintfield" "[0-9]+" "$expected_max"
 133         ok $? "Trace validation - netintfield"
 134
 135         validate_min_max "$stats" "longfield" "[0-9]+" "$expected_max"
 136         ok $? "Trace validation - longfield"
 137
 138         rm -rf $trace_path
 139 }
 140
 141 LIMITS=("1" "2" "4" "8" "10" "16" "32" "64")
 142
 143 # The file count validation depends on the number of streams (1 per cpu)
 144 TOTAL_TESTS=$(($NUM_TESTS + (${#LIMITS[@]} * $NUM_CPUS)))
 145
 146 plan_tests $TOTAL_TESTS
 147
 148 print_test_banner "$TEST_DESC"
 149
 150 start_lttng_sessiond
 151
 152 for limit in ${LIMITS[@]};
 153 do
 154         test_tracefile_count_limit $limit
 155 done
 156
 157 stop_lttng_sessiond