[lttng-tools.git] / tests / regression / ust / blocking / test_blocking

#!/bin/bash
#
# Copyright (C) 2015 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
# Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
#
# SPDX-License-Identifier: LGPL-2.1-only

TEST_DESC="UST - Blocking mode"

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..
SESSION_NAME="blocking"
CHANNEL_NAME="testchan"

TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
EVENT_NAME="tp:tptest"

NUM_TESTS=49

# shellcheck source=../utils/utils.sh
source "$TESTDIR/utils/utils.sh"

# MUST set TESTDIR before calling those functions
# Run app on a single CPU to ensure we only write in a single ring buffer.
function run_app()
{
	taskset --cpu-list "$(get_any_available_cpu)" $TESTAPP_BIN -i $NUM_EVENT
	ok $? "Application done"
}

function test_ust_implicit_no_blocking()
{
	NUM_EVENT=5000000
	diag "UST implicit non-blocking mode (default): will hang if fails"

	start_lttng_sessiond
	# session in no-output mode
	create_lttng_session_no_output $SESSION_NAME
	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
	start_lttng_tracing_ok $SESSION_NAME
	run_app
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME
	stop_lttng_sessiond

	ok 0 "Does not hang"
}

function test_ust_implicit_no_blocking_with_channel_blocking()
{
	NUM_EVENT=5000000
	diag "UST implicit non-blocking mode (default) with blocking-timeout=inf channel: will hang if fails"

	start_lttng_sessiond
	# session in no-output mode
	create_lttng_session_no_output $SESSION_NAME
	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=inf"
	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	run_app
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME
	stop_lttng_sessiond

	ok 0 "Does not hang"
}

function test_ust_timeout_no_blocking()
{
	NUM_EVENT=12500
	diag "UST 1ms timeout blocking mode: will hang if fails"

	start_lttng_sessiond
	# session in no-output mode
	create_lttng_session_no_output $SESSION_NAME
	# blocking timeout 1ms
	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=1000"
	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	LTTNG_UST_ALLOW_BLOCKING=1 run_app
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME
	stop_lttng_sessiond

	ok 0 "Does not hang"
}

function test_ust_snapshot_no_blocking()
{
	NUM_EVENT=5000000
	diag "UST blocking mode: don't block in snapshot mode"

	# Test without the plugin
	start_lttng_sessiond
	create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot
	# blocking timeout 1ms
	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=1000"
	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	LTTNG_UST_ALLOW_BLOCKING=1 run_app
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME
	stop_lttng_sessiond

	ok 0 "Does not hang"
}

function test_ust_blocking_no_discard()
{
	NUM_EVENT=5000000
	diag "UST blocking mode: no event discarded"

	# Test without the plugin
	start_lttng_sessiond
	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
	# infinite blocking timeout
	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=inf"
	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	LTTNG_UST_ALLOW_BLOCKING=1 run_app
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME
	stop_lttng_sessiond

	nr_events=$("$BABELTRACE_BIN" $TRACE_PATH 2>/dev/null | wc -l)

	test $nr_events -eq $NUM_EVENT
	ok $? "No event lost with UST blocking mode: found $nr_events expect $NUM_EVENT"
}

plan_tests $NUM_TESTS

print_test_banner "$TEST_DESC"

bail_out_if_no_babeltrace

TESTS=(
	"test_ust_implicit_no_blocking"
	"test_ust_implicit_no_blocking_with_channel_blocking"
	"test_ust_timeout_no_blocking"
	"test_ust_snapshot_no_blocking"
	"test_ust_blocking_no_discard"
)

TEST_COUNT=${#TESTS[@]}
i=0

while [ "$i" -lt "$TEST_COUNT" ]; do

	TRACE_PATH=$(mktemp -d -t tmp.test_blocking_ust_trace_path.XXXXXX)

	# Execute test
	${TESTS[$i]}

	rm -rf $TRACE_PATH

	let "i++"
done
Commit	Line	Data
	1	#!/bin/bash
	2	#
	3	# Copyright (C) 2015 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
	4	# Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	5	#
	6	# SPDX-License-Identifier: LGPL-2.1-only
	7
	8	TEST_DESC="UST - Blocking mode"
	9
	10	CURDIR=$(dirname $0)/
	11	TESTDIR=$CURDIR/../../..
	12	SESSION_NAME="blocking"
	13	CHANNEL_NAME="testchan"
	14
	15	TESTAPP_PATH="$TESTDIR/utils/testapp"
	16	TESTAPP_NAME="gen-ust-events"
	17	TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
	18	EVENT_NAME="tp:tptest"
	19
	20	NUM_TESTS=49
	21
	22	# shellcheck source=../utils/utils.sh
	23	source "$TESTDIR/utils/utils.sh"
	24
	25	# MUST set TESTDIR before calling those functions
	26	# Run app on a single CPU to ensure we only write in a single ring buffer.
	27	function run_app()
	28	{
	29	taskset --cpu-list "$(get_any_available_cpu)" $TESTAPP_BIN -i $NUM_EVENT
	30	ok $? "Application done"
	31	}
	32
	33	function test_ust_implicit_no_blocking()
	34	{
	35	NUM_EVENT=5000000
	36	diag "UST implicit non-blocking mode (default): will hang if fails"
	37
	38	start_lttng_sessiond
	39	# session in no-output mode
	40	create_lttng_session_no_output $SESSION_NAME
	41	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
	42	start_lttng_tracing_ok $SESSION_NAME
	43	run_app
	44	stop_lttng_tracing_ok $SESSION_NAME
	45	destroy_lttng_session_ok $SESSION_NAME
	46	stop_lttng_sessiond
	47
	48	ok 0 "Does not hang"
	49	}
	50
	51	function test_ust_implicit_no_blocking_with_channel_blocking()
	52	{
	53	NUM_EVENT=5000000
	54	diag "UST implicit non-blocking mode (default) with blocking-timeout=inf channel: will hang if fails"
	55
	56	start_lttng_sessiond
	57	# session in no-output mode
	58	create_lttng_session_no_output $SESSION_NAME
	59	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=inf"
	60	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
	61	start_lttng_tracing_ok $SESSION_NAME
	62	run_app
	63	stop_lttng_tracing_ok $SESSION_NAME
	64	destroy_lttng_session_ok $SESSION_NAME
	65	stop_lttng_sessiond
	66
	67	ok 0 "Does not hang"
	68	}
	69
	70	function test_ust_timeout_no_blocking()
	71	{
	72	NUM_EVENT=12500
	73	diag "UST 1ms timeout blocking mode: will hang if fails"
	74
	75	start_lttng_sessiond
	76	# session in no-output mode
	77	create_lttng_session_no_output $SESSION_NAME
	78	# blocking timeout 1ms
	79	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=1000"
	80	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
	81	start_lttng_tracing_ok $SESSION_NAME
	82	LTTNG_UST_ALLOW_BLOCKING=1 run_app
	83	stop_lttng_tracing_ok $SESSION_NAME
	84	destroy_lttng_session_ok $SESSION_NAME
	85	stop_lttng_sessiond
	86
	87	ok 0 "Does not hang"
	88	}
	89
	90	function test_ust_snapshot_no_blocking()
	91	{
	92	NUM_EVENT=5000000
	93	diag "UST blocking mode: don't block in snapshot mode"
	94
	95	# Test without the plugin
	96	start_lttng_sessiond
	97	create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot
	98	# blocking timeout 1ms
	99	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=1000"
	100	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
	101	start_lttng_tracing_ok $SESSION_NAME
	102	LTTNG_UST_ALLOW_BLOCKING=1 run_app
	103	stop_lttng_tracing_ok $SESSION_NAME
	104	destroy_lttng_session_ok $SESSION_NAME
	105	stop_lttng_sessiond
	106
	107	ok 0 "Does not hang"
	108	}
	109
	110	function test_ust_blocking_no_discard()
	111	{
	112	NUM_EVENT=5000000
	113	diag "UST blocking mode: no event discarded"
	114
	115	# Test without the plugin
	116	start_lttng_sessiond
	117	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
	118	# infinite blocking timeout
	119	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=inf"
	120	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
	121	start_lttng_tracing_ok $SESSION_NAME
	122	LTTNG_UST_ALLOW_BLOCKING=1 run_app
	123	stop_lttng_tracing_ok $SESSION_NAME
	124	destroy_lttng_session_ok $SESSION_NAME
	125	stop_lttng_sessiond
	126
	127	nr_events=$("$BABELTRACE_BIN" $TRACE_PATH 2>/dev/null \| wc -l)
	128
	129	test $nr_events -eq $NUM_EVENT
	130	ok $? "No event lost with UST blocking mode: found $nr_events expect $NUM_EVENT"
	131	}
	132
	133	plan_tests $NUM_TESTS
	134
	135	print_test_banner "$TEST_DESC"
	136
	137	bail_out_if_no_babeltrace
	138
	139	TESTS=(
	140	"test_ust_implicit_no_blocking"
	141	"test_ust_implicit_no_blocking_with_channel_blocking"
	142	"test_ust_timeout_no_blocking"
	143	"test_ust_snapshot_no_blocking"
	144	"test_ust_blocking_no_discard"
	145	)
	146
	147	TEST_COUNT=${#TESTS[@]}
	148	i=0
	149
	150	while [ "$i" -lt "$TEST_COUNT" ]; do
	151
	152	TRACE_PATH=$(mktemp -d -t tmp.test_blocking_ust_trace_path.XXXXXX)
	153
	154	# Execute test
	155	${TESTS[$i]}
	156
	157	rm -rf $TRACE_PATH
	158
	159	let "i++"
	160	done