tests/regression/tools/rotation/test_kernel

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2017 Julien Desfossez <jdesfossez@efficios.com>
   4 #
   5 # SPDX-License-Identifier: LGPL-2.1-only
   6
   7 TEST_DESC="Rotation - Kernel tracing"
   8
   9 CURDIR=$(dirname $0)/
  10 TESTDIR=$CURDIR/../../..
  11 EVENT_NAME="lttng_test_filter_event"
  12
  13 TRACE_PATH=$(mktemp --tmpdir -d -t tmp.rotation_kernel_tracing.XXXXXX)
  14
  15 NUM_TESTS=66
  16
  17 source $TESTDIR/utils/utils.sh
  18 source $CURDIR/rotate_utils.sh
  19
  20 function rotate_kernel_test ()
  21 {
  22         local_path=$1
  23
  24         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  25         start_lttng_tracing_ok $SESSION_NAME
  26
  27         today=$(date +%Y%m%d)
  28         # First chunk contains 10 events.
  29         echo -n "10" > /proc/lttng-test-filter-event
  30         rotate_session_ok $SESSION_NAME
  31
  32         # Second chunk contains 20 events.
  33         echo -n "20" > /proc/lttng-test-filter-event
  34         stop_lttng_tracing_ok $SESSION_NAME
  35
  36         # Third chunk contains no event (rotate after stop).
  37         rotate_session_ok $SESSION_NAME
  38
  39         destroy_lttng_session_ok $SESSION_NAME
  40
  41         validate_test_chunks $local_path $today kernel kernel
  42 }
  43
  44 function test_kernel_streaming ()
  45 {
  46         diag "Test kernel streaming with session rotation"
  47         create_lttng_session_uri $SESSION_NAME net://localhost
  48         rotate_kernel_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*/archives"
  49 }
  50
  51 function test_kernel_local ()
  52 {
  53         diag "Test kernel local with session rotation"
  54         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  55
  56         rotate_kernel_test "${TRACE_PATH}/archives"
  57 }
  58
  59 function test_kernel_local_timer ()
  60 {
  61         diag "Test kernel local with session rotation timer"
  62         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  63         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  64         lttng_enable_rotation_timer_ok $SESSION_NAME 500ms
  65         start_lttng_tracing_ok $SESSION_NAME
  66
  67         rotate_timer_test "${TRACE_PATH}/archives" 0
  68 }
  69
  70 function test_kernel_streaming_timer ()
  71 {
  72         diag "Test kernel remote with session rotation timer"
  73         create_lttng_session_uri $SESSION_NAME net://localhost
  74         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  75         lttng_enable_rotation_timer_ok $SESSION_NAME 500ms
  76         start_lttng_tracing_ok $SESSION_NAME
  77
  78         rotate_timer_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*/archives" 0
  79 }
  80
  81 function produce_n_events ()
  82 {
  83         local event_count=$1
  84
  85         echo -n $event_count > /proc/lttng-test-filter-event
  86 }
  87
  88 function test_kernel_local_size ()
  89 {
  90         diag "Rotate kernel local session every 2MiB"
  91         local size_threshold=$((2 * 1024 * 1024))
  92
  93         diag "Test ust local with size-based session rotation per-uid"
  94         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  95         enable_kernel_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
  96         lttng_enable_rotation_size_ok $SESSION_NAME $size_threshold
  97         start_lttng_tracing_ok $SESSION_NAME
  98
  99         trace_until_n_archives produce_n_events "$TRACE_PATH" 5
 100
 101         destroy_lttng_session_ok $SESSION_NAME
 102 }
 103
 104 plan_tests $NUM_TESTS
 105
 106 print_test_banner "$TEST_DESC"
 107 bail_out_if_no_babeltrace
 108
 109 if [ "$(id -u)" == "0" ]; then
 110         isroot=1
 111 else
 112         isroot=0
 113 fi
 114
 115 skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
 116 {
 117         validate_lttng_modules_present
 118
 119         start_lttng_relayd "-o $TRACE_PATH"
 120         start_lttng_sessiond
 121         modprobe lttng-test
 122
 123         tests=( test_kernel_streaming test_kernel_local test_kernel_local_timer test_kernel_streaming_timer test_kernel_local_size )
 124
 125         for fct_test in ${tests[@]};
 126         do
 127                 SESSION_NAME=$(randstring 16 0)
 128                 ${fct_test}
 129                 clean_path $TRACE_PATH
 130         done
 131
 132         modprobe --remove lttng-test
 133         stop_lttng_sessiond
 134         stop_lttng_relayd
 135 }
 136
 137 rm -rf $TRACE_PATH