3 # Copyright (C) 2016 Julien Desfossez <jdesfossez@efficios.com>
5 # SPDX-License-Identifier: GPL-2.0-only
8 TEST_DESC
="Perf counters"
13 SESSION_NAME
="perf_counters"
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@"
23 source $TESTDIR/utils
/utils.sh
25 function enable_ust_lttng_event_per_chan
()
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"
35 function have_libpfm
()
38 ok $?
"Have libpfm installed"
41 function test_ust_raw
()
43 TRACE_PATH
=$
(mktemp
-d)
44 SESSION_NAME
="ust_perf"
46 EVENT_NAME
="tp:tptest"
47 PMU
="UNHALTED_REFERENCE_CYCLES"
48 PERFID
=$
($CURDIR/find_event
$PMU)
52 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
54 enable_ust_lttng_channel_ok
$SESSION_NAME $CHAN_NAME
56 enable_ust_lttng_event_per_chan
$SESSION_NAME $EVENT_NAME $CHAN_NAME
58 add_context_ust_ok
$SESSION_NAME $CHAN_NAME "perf:thread:raw:${PERFID}:test"
60 start_lttng_tracing_ok
62 $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT >/dev
/null
2>&1
66 destroy_lttng_session_ok
$SESSION_NAME
68 validate_trace
"perf_thread_raw_${PERFID}_test" $TRACE_PATH
73 function test_kernel_raw
()
75 TRACE_PATH
=$
(mktemp
-d)
76 SESSION_NAME
="kernel_perf"
78 EVENT_NAME
="lttng_test_filter_event"
79 PMU
="UNHALTED_REFERENCE_CYCLES"
80 PERFID
=$
($CURDIR/find_event
$PMU)
84 create_lttng_session_ok
$SESSION_NAME $TRACE_PATH
86 lttng_enable_kernel_channel_ok
$SESSION_NAME $CHAN_NAME
88 enable_kernel_lttng_event_ok
$SESSION_NAME $EVENT_NAME $CHAN_NAME
90 add_context_kernel_ok
$SESSION_NAME $CHAN_NAME "perf:cpu:raw:${PERFID}:test"
92 start_lttng_tracing_ok
94 echo -n 10 > /proc
/lttng-test-filter-event
98 destroy_lttng_session_ok
$SESSION_NAME
100 validate_trace
"perf_cpu_raw_${PERFID}_test" $TRACE_PATH
105 if [ "$(id -u)" == "0" ]; then
111 # MUST set TESTDIR before calling those functions
112 plan_tests
$NUM_TESTS
114 print_test_banner
"$TEST_DESC"
122 skip
$isroot "Root access is needed for kernel testing, skipping." 9 ||