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