tests/perf/test_perf_raw.in

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2016 Julien Desfossez <jdesfossez@efficios.com>
   4 #
   5 # SPDX-License-Identifier: GPL-2.0-only
   6 #
   7
   8 TEST_DESC="Perf counters"
   9
  10 CURDIR=$(dirname $0)/
  11 TESTDIR=$CURDIR/..
  12 LTTNG_BIN="lttng"
  13 SESSION_NAME="perf_counters"
  14 NUM_TESTS=21
  15 NR_ITER=1
  16 NR_USEC_WAIT=1
  17 TESTAPP_PATH="$TESTDIR/utils/testapp"
  18 TESTAPP_NAME="gen-ust-events"
  19 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  20 # Empty if libpfm is installed, "#" otherwise
  21 HAVE_LIBPFM="@LTTNG_TOOLS_BUILD_WITH_LIBPFM_TRUE@"
  22
  23 source $TESTDIR/utils/utils.sh
  24
  25 function enable_ust_lttng_event_per_chan()
  26 {
  27         sess_name="$1"
  28         event_name="$2"
  29         chan_name="$3"
  30
  31         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -c $chan_name -u >/dev/null 2>&1
  32         ok $? "Enable event $event_name for session $sess_name in channel $chan_name"
  33 }
  34
  35 function have_libpfm()
  36 {
  37         test -z $HAVE_LIBPFM
  38         ok $? "Have libpfm installed"
  39 }
  40
  41 function test_ust_raw()
  42 {
  43         TRACE_PATH=$(mktemp -d)
  44         SESSION_NAME="ust_perf"
  45         CHAN_NAME="mychan"
  46         EVENT_NAME="tp:tptest"
  47         PMU="UNHALTED_REFERENCE_CYCLES"
  48         PERFID=$($CURDIR/find_event $PMU)
  49         test $? -eq "0"
  50         ok $? "Find PMU $PMU"
  51
  52         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  53
  54         enable_ust_lttng_channel_ok $SESSION_NAME $CHAN_NAME
  55
  56         enable_ust_lttng_event_per_chan $SESSION_NAME $EVENT_NAME $CHAN_NAME
  57
  58         add_context_ust_ok $SESSION_NAME $CHAN_NAME "perf:thread:raw:${PERFID}:test"
  59
  60         start_lttng_tracing_ok
  61
  62         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT >/dev/null 2>&1
  63
  64         stop_lttng_tracing_ok
  65
  66         destroy_lttng_session_ok $SESSION_NAME
  67
  68         validate_trace "perf_thread_raw_${PERFID}_test" $TRACE_PATH
  69
  70         rm -rf $TRACE_PATH
  71 }
  72
  73 function test_kernel_raw()
  74 {
  75         TRACE_PATH=$(mktemp -d)
  76         SESSION_NAME="kernel_perf"
  77         CHAN_NAME="mychan"
  78         EVENT_NAME="lttng_test_filter_event"
  79         PMU="UNHALTED_REFERENCE_CYCLES"
  80         PERFID=$($CURDIR/find_event $PMU)
  81         test $? -eq "0"
  82         ok $? "Find PMU $PMU"
  83
  84         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  85
  86         lttng_enable_kernel_channel_ok $SESSION_NAME $CHAN_NAME
  87
  88         enable_kernel_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHAN_NAME
  89
  90         add_context_kernel_ok $SESSION_NAME $CHAN_NAME "perf:cpu:raw:${PERFID}:test"
  91
  92         start_lttng_tracing_ok
  93
  94         echo -n 10 > /proc/lttng-test-filter-event
  95
  96         stop_lttng_tracing_ok
  97
  98         destroy_lttng_session_ok $SESSION_NAME
  99
 100         validate_trace "perf_cpu_raw_${PERFID}_test" $TRACE_PATH
 101
 102         rm -rf $TRACE_PATH
 103 }
 104
 105 if [ "$(id -u)" == "0" ]; then
 106         isroot=1
 107 else
 108         isroot=0
 109 fi
 110
 111 # MUST set TESTDIR before calling those functions
 112 plan_tests $NUM_TESTS
 113
 114 print_test_banner "$TEST_DESC"
 115
 116 start_lttng_sessiond
 117
 118 have_libpfm
 119
 120 test_ust_raw
 121
 122 skip $isroot "Root access is needed for kernel testing, skipping." 9 ||
 123 {
 124         modprobe lttng-test
 125         test_kernel_raw
 126         rmmod lttng-test
 127 }
 128
 129 stop_lttng_sessiond