[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

source $TESTDIR/utils/utils.sh

# MUST set TESTDIR before calling those functions
# Run app on CPU 0 to ensure we only write in a single ring buffer.
function run_app()
{
	taskset 0x00000001 $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 $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"

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)

	# Execute test
	${TESTS[$i]}

	rm -rf $TRACE_PATH

	let "i++"
done
Commit	Line	Data
de7e372e MD	1	#!/bin/bash
de7e372e MD	2	#
9d16b343 MJ	3	# Copyright (C) 2015 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
9d16b343 MJ	4	# Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
de7e372e	5	#
9d16b343 MJ	6	# SPDX-License-Identifier: LGPL-2.1-only
9d16b343 MJ	7
de7e372e MD	8	TEST_DESC="UST - Blocking mode"
	9
	10	CURDIR=$(dirname $0)/
	11	TESTDIR=$CURDIR/../../..
	12	SESSION_NAME="blocking"
491d1539	13	CHANNEL_NAME="testchan"
de7e372e MD	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
491d1539	20	NUM_TESTS=49
de7e372e MD	21
	22	source $TESTDIR/utils/utils.sh
	23
	24	# MUST set TESTDIR before calling those functions
	25	# Run app on CPU 0 to ensure we only write in a single ring buffer.
	26	function run_app()
	27	{
6c4a91d6	28	taskset 0x00000001 $TESTAPP_BIN -i $NUM_EVENT
de7e372e MD	29	ok $? "Application done"
	30	}
	31
	32	function test_ust_implicit_no_blocking()
	33	{
491d1539	34	NUM_EVENT=5000000
de7e372e MD	35	diag "UST implicit non-blocking mode (default): will hang if fails"
de7e372e MD	36
de7e372e	37	start_lttng_sessiond
491d1539	38	# session in no-output mode
de7e372e MD	39	create_lttng_session_no_output $SESSION_NAME
	40	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
	41	start_lttng_tracing_ok $SESSION_NAME
	42	run_app
	43	stop_lttng_tracing_ok $SESSION_NAME
	44	destroy_lttng_session_ok $SESSION_NAME
	45	stop_lttng_sessiond
	46
	47	ok 0 "Does not hang"
	48	}
	49
491d1539	50	function test_ust_implicit_no_blocking_with_channel_blocking()
de7e372e	51	{
491d1539	52	NUM_EVENT=5000000
63dd9b28	53	diag "UST implicit non-blocking mode (default) with blocking-timeout=inf channel: will hang if fails"
de7e372e	54
de7e372e	55	start_lttng_sessiond
491d1539	56	# session in no-output mode
de7e372e	57	create_lttng_session_no_output $SESSION_NAME
63dd9b28	58	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=inf"
491d1539	59	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
de7e372e	60	start_lttng_tracing_ok $SESSION_NAME
491d1539	61	run_app
de7e372e MD	62	stop_lttng_tracing_ok $SESSION_NAME
	63	destroy_lttng_session_ok $SESSION_NAME
	64	stop_lttng_sessiond
	65
	66	ok 0 "Does not hang"
	67	}
	68
	69	function test_ust_timeout_no_blocking()
	70	{
	71	NUM_EVENT=12500
491d1539	72	diag "UST 1ms timeout blocking mode: will hang if fails"
de7e372e MD	73
de7e372e MD	74	start_lttng_sessiond
491d1539	75	# session in no-output mode
de7e372e	76	create_lttng_session_no_output $SESSION_NAME
491d1539 MD	77	# blocking timeout 1ms
	78	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=1000"
	79	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
de7e372e	80	start_lttng_tracing_ok $SESSION_NAME
491d1539	81	LTTNG_UST_ALLOW_BLOCKING=1 run_app
de7e372e MD	82	stop_lttng_tracing_ok $SESSION_NAME
	83	destroy_lttng_session_ok $SESSION_NAME
	84	stop_lttng_sessiond
	85
	86	ok 0 "Does not hang"
	87	}
	88
	89	function test_ust_snapshot_no_blocking()
	90	{
491d1539	91	NUM_EVENT=5000000
de7e372e MD	92	diag "UST blocking mode: don't block in snapshot mode"
	93
	94	# Test without the plugin
	95	start_lttng_sessiond
	96	create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot
491d1539 MD	97	# blocking timeout 1ms
	98	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=1000"
	99	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
de7e372e	100	start_lttng_tracing_ok $SESSION_NAME
491d1539	101	LTTNG_UST_ALLOW_BLOCKING=1 run_app
de7e372e MD	102	stop_lttng_tracing_ok $SESSION_NAME
	103	destroy_lttng_session_ok $SESSION_NAME
	104	stop_lttng_sessiond
	105
	106	ok 0 "Does not hang"
	107	}
	108
	109	function test_ust_blocking_no_discard()
	110	{
491d1539	111	NUM_EVENT=5000000
de7e372e MD	112	diag "UST blocking mode: no event discarded"
	113
	114	# Test without the plugin
	115	start_lttng_sessiond
	116	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
491d1539	117	# infinite blocking timeout
63dd9b28	118	enable_ust_lttng_channel_ok $SESSION_NAME $CHANNEL_NAME "--blocking-timeout=inf"
491d1539	119	enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME" $CHANNEL_NAME
de7e372e	120	start_lttng_tracing_ok $SESSION_NAME
491d1539	121	LTTNG_UST_ALLOW_BLOCKING=1 run_app
de7e372e MD	122	stop_lttng_tracing_ok $SESSION_NAME
	123	destroy_lttng_session_ok $SESSION_NAME
	124	stop_lttng_sessiond
	125
	126	nr_events=$(babeltrace $TRACE_PATH 2>/dev/null \| wc -l)
	127
	128	test $nr_events -eq $NUM_EVENT
	129	ok $? "No event lost with UST blocking mode: found $nr_events expect $NUM_EVENT"
	130	}
	131
	132	plan_tests $NUM_TESTS
	133
	134	print_test_banner "$TEST_DESC"
	135
	136	TESTS=(
	137	"test_ust_implicit_no_blocking"
491d1539	138	"test_ust_implicit_no_blocking_with_channel_blocking"
de7e372e MD	139	"test_ust_timeout_no_blocking"
	140	"test_ust_snapshot_no_blocking"
	141	"test_ust_blocking_no_discard"
	142	)
	143
	144	TEST_COUNT=${#TESTS[@]}
	145	i=0
	146
	147	while [ "$i" -lt "$TEST_COUNT" ]; do
	148
	149	TRACE_PATH=$(mktemp -d)
	150
	151	# Execute test
	152	${TESTS[$i]}
	153
	154	rm -rf $TRACE_PATH
	155
	156	let "i++"
	157	done