[lttng-tools.git] / tests / regression / tools / snapshots / ust_test

#!/bin/bash
#
# Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com>
#
# SPDX-License-Identifier: LGPL-2.1-only

TEST_DESC="Snapshots - UST tracing"

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..
EVENT_NAME="tp:tptest"
SESSION_NAME=""
CHANNEL_NAME="snapchan"
TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
APPS_PID=

NUM_TESTS=100

TRACE_PATH=$(mktemp -d)

source $TESTDIR/utils/utils.sh

if [ ! -x "$TESTAPP_BIN" ]; then
	BAIL_OUT "No UST events binary detected."
fi

# Need the number of snapshot to do.
if [ -z $1 ]; then
	BAIL_OUT "A number of snapshot is needed."
fi
NR_SNAPSHOT=$1

NUM_TESTS=$(($NUM_TESTS + ($NR_SNAPSHOT * 2)))

function start_test_app()
{
	local tmp_file=$(mktemp -u)

	# Start application with a temporary file.
	$TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT --sync-after-first-event $tmp_file &
	ret=$?
	APPS_PID="${APPS_PID} ${!}"
	ok $ret "Start application to trace"

	# Wait for the application file to appear indicating that at least one
	# tracepoint has been fired.
	while [ ! -f "$tmp_file" ]; do
		sleep 0.5
	done
	diag "Removing test app temporary file $tmp_file"
	rm -f $tmp_file
}

function wait_test_apps()
{
	diag "Waiting for $TESTAPP_NAME"
	for p in ${APPS_PID}; do
		wait ${p} 2>/dev/null
	done
}

function stop_test_apps()
{
	diag "Stopping $TESTAPP_NAME"
	for p in ${APPS_PID}; do
		kill ${p}
		wait ${p} 2>/dev/null
	done
	APPS_PID=
}

function snapshot_add_output ()
{
	local sess_name=$1
	local trace_path=$2
	local name=$3
	local max_size=$4
	local extra_opt=""

	if [ ! -z $name ]; then
		extra_opt+=" -n $name "
	fi

	if [ ! -z $max_size ]; then
		extra_opt+=" -m $max_size "
	fi

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output \
		-s $sess_name $extra_opt $trace_path > /dev/null 2>&1

	ok $? "Added snapshot output $trace_path ($extra_opt)"
}

function snapshot_del_output ()
{
	local sess_name=$1
	local name=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot del-output \
		-s $sess_name $name > /dev/null 2>&1

	ok $? "Deleted snapshot output named $name"
}

function enable_mmap_overwrite_subbuf_ust_channel ()
{
	local sess_name=$1
	local chan_name=$2
	local subbuf_size=$3

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
		$chan_name -u --output mmap --overwrite \
		--subbuf-size $subbuf_size > /dev/null 2>&1

	ok $? "Enable channel $channel_name for session $sess_name with subbuf size $subbuf_size"
}

function enable_mmap_small_discard_ust_channel ()
{
	local sess_name=$1
	local chan_name=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
		$chan_name -u --output mmap --discard \
		--subbuf-size $(getconf PAGE_SIZE) --num-subbuf 2 \
		> /dev/null 2>&1

	ok $? "Enable channel $channel_name for session $sess_name with small discard buffers"
}

function enable_mmap_small_overwrite_ust_channel ()
{
	local sess_name=$1
	local chan_name=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
		$chan_name -u --output mmap --overwrite \
		--subbuf-size $(getconf PAGE_SIZE) --num-subbuf 2 \
		> /dev/null 2>&1

	ok $? "Enable channel $channel_name for session $sess_name with small discard buffers"
}

function test_ust_list_output ()
{
	output_names=("randomname" "somesnapshot")

	diag "Test UST snapshot output listing"
	create_lttng_session_no_output $SESSION_NAME
	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME

	start_lttng_tracing_ok $SESSION_NAME

	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[0]}

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
		-s $SESSION_NAME 2>&1 | grep ${output_names[0]} > /dev/null
	ok $? "Snapshot named ${output_names[0]} present in list-output listing"

	snapshot_del_output $SESSION_NAME ${output_names[0]}

	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[1]}

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
		-s $SESSION_NAME 2>&1 | grep ${output_names[1]} > /dev/null

	ok $? "Snapshot named ${output_names[1]} present in list-output listing"

	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME
}

function test_ust_local_snapshot ()
{
	NR_ITER=-1
	NR_USEC_WAIT=100

	diag "Test local UST snapshots"
	create_lttng_session_no_output $SESSION_NAME
	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH

	# Returns once the application has at least fired ONE tracepoint.
	start_test_app

	lttng_snapshot_record $SESSION_NAME
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME

	# Validate test
	validate_trace $EVENT_NAME $TRACE_PATH/
	if [ $? -eq 0 ]; then
		# Only delete if successful
		rm -rf $TRACE_PATH
	fi

	stop_test_apps
}

function test_ust_local_snapshot_small_discard_buffers ()
{
	NR_ITER=10000
	NR_USEC_WAIT=0
	OLDCPUSET=$(taskset -p $$)

	diag "Test local UST snapshots with small discard buffers"
	taskset -p 0x1 $$ 1>/dev/null 2>&1 	# CPU 0 only
	create_lttng_session_no_output $SESSION_NAME
	enable_mmap_small_discard_ust_channel $SESSION_NAME $CHANNEL_NAME
	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH

	# Run test apps, wait for them to complete.
	start_test_app
	wait_test_apps

	# Take first snapshot, remember first line.
	lttng_snapshot_record $SESSION_NAME
	FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
	diag "First line (1st snapshot): $FIRST_LINE"
	rm -rf $TRACE_PATH/

	# Run test apps, wait for them to complete.
	start_test_app
	wait_test_apps

	# Take second snapshot, remember first line.
	lttng_snapshot_record $SESSION_NAME
	FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
	diag "First line (2nd snapshot): $FIRST_LINE_2"
	rm -rf $TRACE_PATH/

	if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
		fail "First snapshot event do not match."
	else
		pass "First snapshot event match."
	fi

	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME
	taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
}

function test_ust_local_snapshot_small_overwrite_buffers ()
{
	NR_ITER=10000
	NR_USEC_WAIT=0
	OLDCPUSET=$(taskset -p $$)

	diag "Test local UST snapshots with small overwrite buffers"
	taskset -p 0x1 $$ 1>/dev/null 2>&1 	# CPU 0 only
	create_lttng_session_no_output $SESSION_NAME
	enable_mmap_small_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH

	# Run test apps, wait for them to complete.
	start_test_app
	wait_test_apps

	# Take first snapshot, remember first line.
	lttng_snapshot_record $SESSION_NAME
	FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
	diag "First line (1st snapshot): $FIRST_LINE"
	rm -rf $TRACE_PATH/

	# Run test apps, wait for them to complete.
	start_test_app
	wait_test_apps

	# Take second snapshot, remember first line.
	lttng_snapshot_record $SESSION_NAME
	FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
	diag "First line (2nd snapshot): $FIRST_LINE_2"
	rm -rf $TRACE_PATH/

	if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
		pass "First snapshot event do not match."
	else
		fail "First snapshot event match."
	fi

	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME
	taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
}

function test_ust_local_snapshot_max_size ()
{
	NR_ITER=-1
	NR_USEC_WAIT=100
	page_size=`getconf PAGE_SIZE`
	num_cpus=$(conf_proc_count)

	# The minimum subbuf size is the platform PAGE_SIZE
	subbuf_size=$(($page_size*2))

	# The minimum size limit is min(subbuf_size) * nb_streams
	max_size=$(($subbuf_size*$num_cpus))

	diag "Test local UST snapshots with max size $max_size"
	create_lttng_session_no_output $SESSION_NAME

	enable_mmap_overwrite_subbuf_ust_channel $SESSION_NAME $CHANNEL_NAME $subbuf_size

	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME

	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" "" $max_size

	# Returns once the application has at least fired ONE tracepoint.
	start_test_app

	lttng_snapshot_record $SESSION_NAME

	# Check file size
	sum_size_tracefiles=$(find $TRACE_PATH -name "${CHANNEL_NAME}_*" \
		-exec stat -c '%s' {} \; | awk '{s = s + $1}END{print s}')

	if [ "$sum_size_tracefiles" -gt "$max_size" ]; then
		fail "Tracefiles size sum validation"
		diag "Tracefiles size sum: $sum_size_tracefiles Expected max: $max_size"
	else
		pass "Tracefiles size sum validation"
	fi

	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME

	# Validate test
	validate_trace $EVENT_NAME $TRACE_PATH/

	if [ $? -eq 0 ]; then
		# Only delete if successful
		rm -rf $TRACE_PATH
	fi

	stop_test_apps
}

function test_ust_local_snapshot_large_metadata ()
{
	LM_EVENT="tp:tptest1,tp:tptest2,tp:tptest3,tp:tptest4,tp:tptest5"
	LM_PATH="$TESTDIR/utils/testapp"
	LM_NAME="gen-ust-nevents"
	LM_BIN="$LM_PATH/$LM_NAME/$LM_NAME"

	diag "Test local UST snapshots with > 4kB metadata"
	create_lttng_session_no_output $SESSION_NAME
	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
	enable_ust_lttng_event_ok $SESSION_NAME $LM_EVENT $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
	$LM_BIN --iter 1 --wait 1
	ok $? "Start application to trace"
	lttng_snapshot_record $SESSION_NAME
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME

	# Validate test
	validate_trace $LM_EVENT $TRACE_PATH/
	if [ $? -eq 0 ]; then
		# Only delete if successful
		rm -rf $TRACE_PATH
	fi
}

function enable_channel_per_uid_mmap_overwrite()
{
	sess_name=$1
	channel_name=$2

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --output mmap --overwrite >/dev/null 2>&1
	ok $? "Enable channel $channel_name per UID for session $sess_name"
}

function test_ust_per_uid_local_snapshot ()
{
	NR_ITER=-1
	NR_USEC_WAIT=100
	diag "Test per-uid local UST snapshots"
	create_lttng_session_no_output $SESSION_NAME
	enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH

	# Returns once the application has at least fired ONE tracepoint.
	start_test_app

	lttng_snapshot_record $SESSION_NAME
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME

	# Validate test
	validate_trace $EVENT_NAME $TRACE_PATH/
	if [ $? -eq 0 ]; then
		# Only delete if successful
		rm -rf $TRACE_PATH
	fi

	stop_test_apps
}

function test_ust_per_uid_local_snapshot_post_mortem ()
{
	NR_ITER=-1
	NR_USEC_WAIT=100

	diag "Test local UST snapshots post-mortem"
	create_lttng_session_no_output $SESSION_NAME
	enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH

	# Returns once the application has at least fired ONE tracepoint.
	start_test_app
	stop_test_apps

	lttng_snapshot_record $SESSION_NAME
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME

	# Validate test
	validate_trace $EVENT_NAME $TRACE_PATH/
	if [ $? -eq 0 ]; then
		# Only delete if successful
		rm -rf $TRACE_PATH
	fi
}

function test_ust_local_snapshots ()
{
	NR_ITER=-1
	NR_USEC_WAIT=100

	diag "Test $NR_SNAPSHOT local UST snapshots"
	create_lttng_session_no_output $SESSION_NAME
	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing_ok $SESSION_NAME
	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH

	# Returns once the application has at least fired ONE tracepoint.
	start_test_app

	for i in $(seq 1 $NR_SNAPSHOT); do
		diag "Snapshot $i/$NR_SNAPSHOT"
		rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
		lttng_snapshot_record $SESSION_NAME
		# Validate test
		validate_trace $EVENT_NAME $TRACE_PATH/
		if [ $? -eq 0 ]; then
			# Only delete if successful
			rm -rf $TRACE_PATH
		fi
	done
	stop_lttng_tracing_ok $SESSION_NAME
	destroy_lttng_session_ok $SESSION_NAME

	stop_test_apps
}

plan_tests $NUM_TESTS

print_test_banner "$TEST_DESC"

start_lttng_sessiond
tests=( test_ust_list_output
	test_ust_local_snapshot
	test_ust_local_snapshot_max_size
	test_ust_per_uid_local_snapshot
	test_ust_per_uid_local_snapshot_post_mortem
	test_ust_local_snapshot_large_metadata
	test_ust_local_snapshots
	test_ust_local_snapshot_small_discard_buffers
	test_ust_local_snapshot_small_overwrite_buffers
)

for fct_test in ${tests[@]};
do
	SESSION_NAME=$(randstring 16 0)
	${fct_test}
done

stop_lttng_sessiond
Commit	Line	Data
ebaaaf5e JD	1	#!/bin/bash
ebaaaf5e JD	2	#
9d16b343	3	# Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com>
ebaaaf5e	4	#
9d16b343 MJ	5	# SPDX-License-Identifier: LGPL-2.1-only
9d16b343 MJ	6
ebaaaf5e JD	7	TEST_DESC="Snapshots - UST tracing"
	8
	9	CURDIR=$(dirname $0)/
	10	TESTDIR=$CURDIR/../../..
	11	EVENT_NAME="tp:tptest"
ebaaaf5e JD	12	SESSION_NAME=""
	13	CHANNEL_NAME="snapchan"
	14	TESTAPP_PATH="$TESTDIR/utils/testapp"
	15	TESTAPP_NAME="gen-ust-events"
	16	TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
0fc2834c	17	APPS_PID=
ebaaaf5e	18
ae779dd6	19	NUM_TESTS=100
ebaaaf5e	20
1d20c959	21	TRACE_PATH=$(mktemp -d)
ebaaaf5e JD	22
	23	source $TESTDIR/utils/utils.sh
	24
	25	if [ ! -x "$TESTAPP_BIN" ]; then
	26	BAIL_OUT "No UST events binary detected."
	27	fi
	28
1d20c959 DG	29	# Need the number of snapshot to do.
	30	if [ -z $1 ]; then
	31	BAIL_OUT "A number of snapshot is needed."
	32	fi
	33	NR_SNAPSHOT=$1
	34
	35	NUM_TESTS=$(($NUM_TESTS + ($NR_SNAPSHOT * 2)))
	36
209b934f DG	37	function start_test_app()
209b934f DG	38	{
5fcaccbc	39	local tmp_file=$(mktemp -u)
209b934f DG	40
209b934f DG	41	# Start application with a temporary file.
6c4a91d6	42	$TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT --sync-after-first-event $tmp_file &
0fc2834c MD	43	ret=$?
	44	APPS_PID="${APPS_PID} ${!}"
	45	ok $ret "Start application to trace"
209b934f DG	46
	47	# Wait for the application file to appear indicating that at least one
	48	# tracepoint has been fired.
	49	while [ ! -f "$tmp_file" ]; do
	50	sleep 0.5
	51	done
	52	diag "Removing test app temporary file $tmp_file"
	53	rm -f $tmp_file
	54	}
	55
ae779dd6 MD	56	function wait_test_apps()
	57	{
	58	diag "Waiting for $TESTAPP_NAME"
	59	for p in ${APPS_PID}; do
	60	wait ${p} 2>/dev/null
	61	done
	62	}
	63
0fc2834c	64	function stop_test_apps()
209b934f	65	{
0fc2834c MD	66	diag "Stopping $TESTAPP_NAME"
	67	for p in ${APPS_PID}; do
	68	kill ${p}
5402fe87	69	wait ${p} 2>/dev/null
0fc2834c	70	done
c7613334	71	APPS_PID=
209b934f DG	72	}
209b934f DG	73
5e83c405 CB	74	function snapshot_add_output ()
	75	{
	76	local sess_name=$1
	77	local trace_path=$2
	78	local name=$3
	79	local max_size=$4
	80	local extra_opt=""
	81
	82	if [ ! -z $name ]; then
	83	extra_opt+=" -n $name "
	84	fi
	85
	86	if [ ! -z $max_size ]; then
	87	extra_opt+=" -m $max_size "
	88	fi
	89
	90	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output \
	91	-s $sess_name $extra_opt $trace_path > /dev/null 2>&1
	92
	93	ok $? "Added snapshot output $trace_path ($extra_opt)"
	94	}
	95
	96	function snapshot_del_output ()
	97	{
	98	local sess_name=$1
	99	local name=$2
	100
	101	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot del-output \
	102	-s $sess_name $name > /dev/null 2>&1
	103
	104	ok $? "Deleted snapshot output named $name"
	105	}
	106
	107	function enable_mmap_overwrite_subbuf_ust_channel ()
	108	{
	109	local sess_name=$1
	110	local chan_name=$2
	111	local subbuf_size=$3
	112
	113	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
	114	$chan_name -u --output mmap --overwrite \
	115	--subbuf-size $subbuf_size > /dev/null 2>&1
	116
	117	ok $? "Enable channel $channel_name for session $sess_name with subbuf size $subbuf_size"
	118	}
	119
ae779dd6 MD	120	function enable_mmap_small_discard_ust_channel ()
	121	{
	122	local sess_name=$1
	123	local chan_name=$2
	124
	125	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
	126	$chan_name -u --output mmap --discard \
	127	--subbuf-size $(getconf PAGE_SIZE) --num-subbuf 2 \
	128	> /dev/null 2>&1
	129
	130	ok $? "Enable channel $channel_name for session $sess_name with small discard buffers"
	131	}
	132
	133	function enable_mmap_small_overwrite_ust_channel ()
	134	{
	135	local sess_name=$1
	136	local chan_name=$2
	137
	138	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
	139	$chan_name -u --output mmap --overwrite \
	140	--subbuf-size $(getconf PAGE_SIZE) --num-subbuf 2 \
	141	> /dev/null 2>&1
	142
	143	ok $? "Enable channel $channel_name for session $sess_name with small discard buffers"
	144	}
5e83c405 CB	145
	146	function test_ust_list_output ()
	147	{
	148	output_names=("randomname" "somesnapshot")
	149
	150	diag "Test UST snapshot output listing"
	151	create_lttng_session_no_output $SESSION_NAME
	152	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	153	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
5e83c405	154
e563bbdb	155	start_lttng_tracing_ok $SESSION_NAME
5e83c405 CB	156
	157	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[0]}
	158
	159	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
	160	-s $SESSION_NAME 2>&1 \| grep ${output_names[0]} > /dev/null
	161	ok $? "Snapshot named ${output_names[0]} present in list-output listing"
	162
	163	snapshot_del_output $SESSION_NAME ${output_names[0]}
	164
	165	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[1]}
	166
	167	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
	168	-s $SESSION_NAME 2>&1 \| grep ${output_names[1]} > /dev/null
	169
	170	ok $? "Snapshot named ${output_names[1]} present in list-output listing"
	171
96340a01	172	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	173	destroy_lttng_session_ok $SESSION_NAME
5e83c405 CB	174	}
5e83c405 CB	175
ebaaaf5e JD	176	function test_ust_local_snapshot ()
ebaaaf5e JD	177	{
18c9d47c	178	NR_ITER=-1
ae779dd6 MD	179	NR_USEC_WAIT=100
ae779dd6 MD	180
ebaaaf5e JD	181	diag "Test local UST snapshots"
	182	create_lttng_session_no_output $SESSION_NAME
	183	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	184	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	185	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	186	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
209b934f DG	187
	188	# Returns once the application has at least fired ONE tracepoint.
	189	start_test_app
	190
ebaaaf5e	191	lttng_snapshot_record $SESSION_NAME
96340a01	192	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	193	destroy_lttng_session_ok $SESSION_NAME
ebaaaf5e JD	194
	195	# Validate test
	196	validate_trace $EVENT_NAME $TRACE_PATH/
	197	if [ $? -eq 0 ]; then
	198	# Only delete if successful
	199	rm -rf $TRACE_PATH
ebaaaf5e	200	fi
209b934f	201
0fc2834c	202	stop_test_apps
ebaaaf5e JD	203	}
ebaaaf5e JD	204
ae779dd6 MD	205	function test_ust_local_snapshot_small_discard_buffers ()
	206	{
	207	NR_ITER=10000
	208	NR_USEC_WAIT=0
	209	OLDCPUSET=$(taskset -p $$)
	210
	211	diag "Test local UST snapshots with small discard buffers"
	212	taskset -p 0x1 $$ 1>/dev/null 2>&1 # CPU 0 only
	213	create_lttng_session_no_output $SESSION_NAME
	214	enable_mmap_small_discard_ust_channel $SESSION_NAME $CHANNEL_NAME
	215	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	216	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	217	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
ae779dd6 MD	218
	219	# Run test apps, wait for them to complete.
	220	start_test_app
	221	wait_test_apps
	222
	223	# Take first snapshot, remember first line.
	224	lttng_snapshot_record $SESSION_NAME
	225	FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
	226	diag "First line (1st snapshot): $FIRST_LINE"
	227	rm -rf $TRACE_PATH/
	228
	229	# Run test apps, wait for them to complete.
	230	start_test_app
	231	wait_test_apps
	232
	233	# Take second snapshot, remember first line.
	234	lttng_snapshot_record $SESSION_NAME
	235	FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
	236	diag "First line (2nd snapshot): $FIRST_LINE_2"
	237	rm -rf $TRACE_PATH/
	238
	239	if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
	240	fail "First snapshot event do not match."
	241	else
	242	pass "First snapshot event match."
	243	fi
	244
	245	stop_lttng_tracing_ok $SESSION_NAME
	246	destroy_lttng_session_ok $SESSION_NAME
	247	taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
	248	}
	249
	250	function test_ust_local_snapshot_small_overwrite_buffers ()
	251	{
	252	NR_ITER=10000
	253	NR_USEC_WAIT=0
	254	OLDCPUSET=$(taskset -p $$)
	255
	256	diag "Test local UST snapshots with small overwrite buffers"
	257	taskset -p 0x1 $$ 1>/dev/null 2>&1 # CPU 0 only
	258	create_lttng_session_no_output $SESSION_NAME
	259	enable_mmap_small_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
	260	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	261	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	262	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
ae779dd6 MD	263
	264	# Run test apps, wait for them to complete.
	265	start_test_app
	266	wait_test_apps
	267
	268	# Take first snapshot, remember first line.
	269	lttng_snapshot_record $SESSION_NAME
	270	FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
	271	diag "First line (1st snapshot): $FIRST_LINE"
	272	rm -rf $TRACE_PATH/
	273
	274	# Run test apps, wait for them to complete.
	275	start_test_app
	276	wait_test_apps
	277
	278	# Take second snapshot, remember first line.
	279	lttng_snapshot_record $SESSION_NAME
	280	FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
	281	diag "First line (2nd snapshot): $FIRST_LINE_2"
	282	rm -rf $TRACE_PATH/
	283
	284	if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
	285	pass "First snapshot event do not match."
	286	else
	287	fail "First snapshot event match."
	288	fi
	289
	290	stop_lttng_tracing_ok $SESSION_NAME
	291	destroy_lttng_session_ok $SESSION_NAME
	292	taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
	293	}
	294
5e83c405 CB	295	function test_ust_local_snapshot_max_size ()
5e83c405 CB	296	{
18c9d47c	297	NR_ITER=-1
ae779dd6	298	NR_USEC_WAIT=100
034a7848	299	page_size=`getconf PAGE_SIZE`
1901f874	300	num_cpus=$(conf_proc_count)
5e83c405	301
034a7848 MJ	302	# The minimum subbuf size is the platform PAGE_SIZE
	303	subbuf_size=$(($page_size*2))
	304
5e83c405 CB	305	# The minimum size limit is min(subbuf_size) * nb_streams
	306	max_size=$(($subbuf_size*$num_cpus))
	307
	308	diag "Test local UST snapshots with max size $max_size"
	309	create_lttng_session_no_output $SESSION_NAME
	310
	311	enable_mmap_overwrite_subbuf_ust_channel $SESSION_NAME $CHANNEL_NAME $subbuf_size
	312
c4926bb5	313	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	314	start_lttng_tracing_ok $SESSION_NAME
5e83c405 CB	315
	316	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" "" $max_size
	317
209b934f DG	318	# Returns once the application has at least fired ONE tracepoint.
209b934f DG	319	start_test_app
5e83c405 CB	320
	321	lttng_snapshot_record $SESSION_NAME
	322
	323	# Check file size
	324	sum_size_tracefiles=$(find $TRACE_PATH -name "${CHANNEL_NAME}_*" \
	325	-exec stat -c '%s' {} \; \| awk '{s = s + $1}END{print s}')
	326
	327	if [ "$sum_size_tracefiles" -gt "$max_size" ]; then
	328	fail "Tracefiles size sum validation"
	329	diag "Tracefiles size sum: $sum_size_tracefiles Expected max: $max_size"
b67cdb8c JG	330	else
b67cdb8c JG	331	pass "Tracefiles size sum validation"
5e83c405 CB	332	fi
5e83c405 CB	333
96340a01	334	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	335	destroy_lttng_session_ok $SESSION_NAME
5e83c405 CB	336
	337	# Validate test
	338	validate_trace $EVENT_NAME $TRACE_PATH/
	339
	340	if [ $? -eq 0 ]; then
	341	# Only delete if successful
	342	rm -rf $TRACE_PATH
	343	fi
	344
0fc2834c	345	stop_test_apps
5e83c405 CB	346	}
5e83c405 CB	347
a54047ec JD	348	function test_ust_local_snapshot_large_metadata ()
	349	{
	350	LM_EVENT="tp:tptest1,tp:tptest2,tp:tptest3,tp:tptest4,tp:tptest5"
	351	LM_PATH="$TESTDIR/utils/testapp"
	352	LM_NAME="gen-ust-nevents"
	353	LM_BIN="$LM_PATH/$LM_NAME/$LM_NAME"
	354
	355	diag "Test local UST snapshots with > 4kB metadata"
	356	create_lttng_session_no_output $SESSION_NAME
	357	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	358	enable_ust_lttng_event_ok $SESSION_NAME $LM_EVENT $CHANNEL_NAME
e563bbdb	359	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	360	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
8db430e7	361	$LM_BIN --iter 1 --wait 1
a54047ec JD	362	ok $? "Start application to trace"
a54047ec JD	363	lttng_snapshot_record $SESSION_NAME
96340a01	364	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	365	destroy_lttng_session_ok $SESSION_NAME
a54047ec JD	366
	367	# Validate test
	368	validate_trace $LM_EVENT $TRACE_PATH/
	369	if [ $? -eq 0 ]; then
	370	# Only delete if successful
	371	rm -rf $TRACE_PATH
a54047ec JD	372	fi
	373	}
	374
5f4c2d80 JD	375	function enable_channel_per_uid_mmap_overwrite()
	376	{
	377	sess_name=$1
	378	channel_name=$2
	379
	380	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --output mmap --overwrite >/dev/null 2>&1
	381	ok $? "Enable channel $channel_name per UID for session $sess_name"
	382	}
	383
	384	function test_ust_per_uid_local_snapshot ()
	385	{
18c9d47c JR	386	NR_ITER=-1
18c9d47c JR	387	NR_USEC_WAIT=100
891d74dd	388	diag "Test per-uid local UST snapshots"
5f4c2d80 JD	389	create_lttng_session_no_output $SESSION_NAME
5f4c2d80 JD	390	enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
c4926bb5	391	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	392	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	393	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
209b934f DG	394
	395	# Returns once the application has at least fired ONE tracepoint.
	396	start_test_app
	397
5f4c2d80	398	lttng_snapshot_record $SESSION_NAME
96340a01	399	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	400	destroy_lttng_session_ok $SESSION_NAME
5f4c2d80 JD	401
	402	# Validate test
	403	validate_trace $EVENT_NAME $TRACE_PATH/
	404	if [ $? -eq 0 ]; then
	405	# Only delete if successful
	406	rm -rf $TRACE_PATH
5f4c2d80	407	fi
209b934f	408
0fc2834c	409	stop_test_apps
5f4c2d80 JD	410	}
5f4c2d80 JD	411
4f03c06d JD	412	function test_ust_per_uid_local_snapshot_post_mortem ()
4f03c06d JD	413	{
18c9d47c	414	NR_ITER=-1
ae779dd6 MD	415	NR_USEC_WAIT=100
ae779dd6 MD	416
4f03c06d JD	417	diag "Test local UST snapshots post-mortem"
	418	create_lttng_session_no_output $SESSION_NAME
	419	enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
c4926bb5	420	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	421	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	422	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
209b934f DG	423
	424	# Returns once the application has at least fired ONE tracepoint.
	425	start_test_app
0fc2834c	426	stop_test_apps
209b934f	427
4f03c06d	428	lttng_snapshot_record $SESSION_NAME
96340a01	429	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	430	destroy_lttng_session_ok $SESSION_NAME
4f03c06d JD	431
	432	# Validate test
	433	validate_trace $EVENT_NAME $TRACE_PATH/
	434	if [ $? -eq 0 ]; then
	435	# Only delete if successful
	436	rm -rf $TRACE_PATH
4f03c06d JD	437	fi
	438	}
	439
1d20c959	440	function test_ust_local_snapshots ()
ebaaaf5e	441	{
18c9d47c	442	NR_ITER=-1
ae779dd6 MD	443	NR_USEC_WAIT=100
ae779dd6 MD	444
1d20c959	445	diag "Test $NR_SNAPSHOT local UST snapshots"
ebaaaf5e JD	446	create_lttng_session_no_output $SESSION_NAME
ebaaaf5e JD	447	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	448	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	449	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	450	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
209b934f DG	451
	452	# Returns once the application has at least fired ONE tracepoint.
	453	start_test_app
	454
1d20c959 DG	455	for i in $(seq 1 $NR_SNAPSHOT); do
1d20c959 DG	456	diag "Snapshot $i/$NR_SNAPSHOT"
ebaaaf5e JD	457	rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
	458	lttng_snapshot_record $SESSION_NAME
	459	# Validate test
	460	validate_trace $EVENT_NAME $TRACE_PATH/
	461	if [ $? -eq 0 ]; then
	462	# Only delete if successful
	463	rm -rf $TRACE_PATH
ebaaaf5e JD	464	fi
ebaaaf5e JD	465	done
96340a01	466	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	467	destroy_lttng_session_ok $SESSION_NAME
209b934f	468
0fc2834c	469	stop_test_apps
ebaaaf5e JD	470	}
	471
	472	plan_tests $NUM_TESTS
	473
	474	print_test_banner "$TEST_DESC"
	475
ebaaaf5e	476	start_lttng_sessiond
5e83c405 CB	477	tests=( test_ust_list_output
	478	test_ust_local_snapshot
	479	test_ust_local_snapshot_max_size
	480	test_ust_per_uid_local_snapshot
	481	test_ust_per_uid_local_snapshot_post_mortem
	482	test_ust_local_snapshot_large_metadata
ae779dd6 MD	483	test_ust_local_snapshots
	484	test_ust_local_snapshot_small_discard_buffers
	485	test_ust_local_snapshot_small_overwrite_buffers
	486	)
ebaaaf5e JD	487
	488	for fct_test in ${tests[@]};
	489	do
	490	SESSION_NAME=$(randstring 16 0)
	491	${fct_test}
ebaaaf5e JD	492	done
	493
	494	stop_lttng_sessiond