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 $? "Have libpfm installed"
  39 }
  40
  41 function test_ust_raw()
  42 {
  43         local TRACE_PATH=$(mktemp -d)
  44         local SESSION_NAME="ust_perf"
  45         local CHAN_NAME="mychan"
  46         local EVENT_NAME="tp:tptest"
  47         local PMU="UNHALTED_REFERENCE_CYCLES"
  48         local tests_to_skip=9
  49         local ret
  50
  51         # Find the raw perf id of the event.
  52         PERFID=$("$CURDIR/find_event" "$PMU")
  53         ret=$?
  54         if [ "$ret" -eq "0" ]; then
  55                 pass "Find PMU $PMU"
  56         elif [ "$ret" -eq "1" ]; then
  57                 skip 0 "PMU event not found." $tests_to_skip
  58                 return
  59         elif [ "$ret" -eq "2" ]; then
  60                 skip 0 "PMU event not actionable." $tests_to_skip
  61                 return
  62         else
  63                 fail "find_event returned $ret."
  64                 return
  65         fi
  66
  67         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  68
  69         enable_ust_lttng_channel_ok $SESSION_NAME $CHAN_NAME
  70
  71         enable_ust_lttng_event_per_chan $SESSION_NAME $EVENT_NAME $CHAN_NAME
  72
  73         add_context_ust_ok $SESSION_NAME $CHAN_NAME "perf:thread:raw:${PERFID}:test"
  74
  75         start_lttng_tracing_ok
  76
  77         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT >/dev/null 2>&1
  78
  79         stop_lttng_tracing_ok
  80
  81         destroy_lttng_session_ok $SESSION_NAME
  82
  83         validate_trace "perf_thread_raw_${PERFID}_test" $TRACE_PATH
  84
  85         rm -rf $TRACE_PATH
  86 }
  87
  88 function test_kernel_raw()
  89 {
  90         local TRACE_PATH=$(mktemp -d)
  91         local SESSION_NAME="kernel_perf"
  92         local CHAN_NAME="mychan"
  93         local EVENT_NAME="lttng_test_filter_event"
  94         local PMU="UNHALTED_REFERENCE_CYCLES"
  95         local PERFID=""
  96         local tests_to_skip=9
  97         local ret
  98
  99         # Find the raw perf id of the event.
 100         PERFID=$("$CURDIR/find_event" "$PMU")
 101         ret=$?
 102         if [ "$ret" -eq "0" ]; then
 103                 pass "Find PMU $PMU"
 104         elif [ "$ret" -eq "1" ]; then
 105                 skip 0 "PMU event not found." $tests_to_skip
 106                 return
 107         elif [ "$ret" -eq "2" ]; then
 108                 skip 0 "PMU event not actionable." $tests_to_skip
 109                 return
 110         else
 111                 fail "find_event returned $ret."
 112                 return
 113         fi
 114
 115         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 116
 117         lttng_enable_kernel_channel_ok $SESSION_NAME $CHAN_NAME
 118
 119         enable_kernel_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHAN_NAME
 120
 121         add_context_kernel_ok $SESSION_NAME $CHAN_NAME "perf:cpu:raw:${PERFID}:test"
 122
 123         start_lttng_tracing_ok
 124
 125         echo -n 10 > /proc/lttng-test-filter-event
 126
 127         stop_lttng_tracing_ok
 128
 129         destroy_lttng_session_ok $SESSION_NAME
 130
 131         validate_trace "perf_cpu_raw_${PERFID}_test" $TRACE_PATH
 132
 133         rm -rf $TRACE_PATH
 134 }
 135
 136 if [ "$(id -u)" == "0" ]; then
 137         isroot=1
 138 else
 139         isroot=0
 140 fi
 141
 142 # MUST set TESTDIR before calling those functions
 143 plan_tests $NUM_TESTS
 144
 145 print_test_banner "$TEST_DESC"
 146
 147 start_lttng_sessiond
 148
 149 have_libpfm
 150
 151 test_ust_raw
 152
 153 skip $isroot "Root access is needed for kernel testing, skipping." 9 ||
 154 {
 155         modprobe lttng-test
 156         test_kernel_raw
 157         modprobe --remove lttng-test
 158 }
 159
 160 stop_lttng_sessiond