tests/regression/tools/tracefile-limits/test_tracefile_size

   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 size limits"
  19
  20 CURDIR=$(dirname $0)/
  21 TESTDIR=$CURDIR/../../..
  22
  23 NR_ITER=1000
  24
  25 TESTAPP_PATH="$TESTDIR/utils/testapp"
  26 TESTAPP_NAME="gen-ust-events"
  27 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  28
  29 NUM_TESTS=47
  30
  31 source $TESTDIR/utils/utils.sh
  32
  33 if [ ! -x "$TESTAPP_BIN" ]; then
  34         BAIL_OUT "No UST events binary detected."
  35 fi
  36
  37 function wait_apps
  38 {
  39         while [ -n "$(pidof $TESTAPP_NAME)" ]; do
  40                 sleep 0.5
  41         done
  42         pass "Wait for applications to end"
  43 }
  44
  45 function enable_lttng_channel_size_limit ()
  46 {
  47         sess_name="$1"
  48         channel_name="$2"
  49         tracefile_size_limit="$3"
  50
  51         test_name="Enable channel $channel_name "
  52         test_name+="for session $sess_name: "
  53         test_name+="$tracefile_size_limit bytes tracefile limit"
  54
  55         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
  56             -u $channel_name -s $sess_name \
  57             -C $tracefile_size_limit >/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 check_file_size ()
  79 {
  80         path="$1"
  81         file_pattern="$2"
  82         expected_max_size="$3"
  83
  84         find $path -name "$file_pattern" -exec stat -c '%n %s' {} \; \
  85             | while read file_info;
  86         do
  87                 name=$(echo $file_info | cut -f1 -d ' ')
  88                 size=$(echo $file_info | cut -f2 -d ' ')
  89
  90                 if [ "$size" -gt "$expected_max_size" ]; then
  91                         diag_msg="file: $name size: $size"
  92                         diag_msg+="expected maximum size: $expected_max_size"
  93                         diag "$diag_msg"
  94                         exit 1
  95                 fi
  96         done
  97
  98         ok $? "File size validation"
  99 }
 100
 101 function test_tracefile_size_limit ()
 102 {
 103         size_limit="$1"
 104         trace_path=$(mktemp -d)
 105         session_name=$(randstring 16 0)
 106         channel_name="channel"
 107         event_name="tp:tptest"
 108
 109         diag "Test tracefile size limit : $size_limit bytes"
 110
 111         create_lttng_session $session_name $trace_path
 112
 113         enable_lttng_channel_size_limit \
 114             $session_name $channel_name $size_limit
 115
 116         enable_ust_lttng_event_per_channel \
 117             $session_name $event_name $channel_name
 118
 119         start_lttng_tracing $session_name
 120
 121         $TESTAPP_BIN $NR_ITER >/dev/null 2>&1 &
 122
 123         wait_apps
 124
 125         stop_lttng_tracing $session_name
 126
 127         destroy_lttng_session $session_name
 128
 129         # Validate file size, each one shall be no larger than the
 130         # specified size limit
 131
 132         check_file_size $trace_path "${channel_name}_*" $size_limit
 133
 134         # Validate tracing data, we should at least have some events
 135
 136         validate_trace $event_name $trace_path
 137
 138         rm -rf $trace_path
 139 }
 140
 141 plan_tests $NUM_TESTS
 142
 143 print_test_banner "$TEST_DESC"
 144
 145 start_lttng_sessiond
 146
 147 LIMITS=("4096" "8192" "16384" "32768" "65536")
 148
 149 for limit in ${LIMITS[@]};
 150 do
 151         test_tracefile_size_limit $limit
 152 done
 153
 154 stop_lttng_sessiond