[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=105

TRACE_PATH=$(mktemp --tmpdir -d tmp.test_snapshots_ust_trace_path.XXXXXX)

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 * 3)))

function start_test_app()
{
	local tmp_file=$(mktemp --tmpdir -u "tmp.${FUNCNAME[0]}_tmp_file.XXXXXX")

	# 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_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
	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_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
	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_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
	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_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
	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_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
	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 $SESSION_NAME
		# Validate test
		validate_trace_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" $((i - 1))
		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
bd666153	19	NUM_TESTS=105
ebaaaf5e	20
33e55711	21	TRACE_PATH=$(mktemp --tmpdir -d tmp.test_snapshots_ust_trace_path.XXXXXX)
ebaaaf5e JD	22
	23	source $TESTDIR/utils/utils.sh
	24
	25	if [ ! -x "$TESTAPP_BIN" ]; then
ce83431d	26	BAIL_OUT "No UST events binary detected"
ebaaaf5e JD	27	fi
ebaaaf5e JD	28
1d20c959 DG	29	# Need the number of snapshot to do.
1d20c959 DG	30	if [ -z $1 ]; then
ce83431d	31	BAIL_OUT "A number of snapshot is needed"
1d20c959 DG	32	fi
	33	NR_SNAPSHOT=$1
	34
bd666153	35	NUM_TESTS=$(($NUM_TESTS + ($NR_SNAPSHOT * 3)))
1d20c959	36
209b934f DG	37	function start_test_app()
209b934f DG	38	{
33e55711	39	local tmp_file=$(mktemp --tmpdir -u "tmp.${FUNCNAME[0]}_tmp_file.XXXXXX")
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 $SESSION_NAME
ebaaaf5e JD	194
ebaaaf5e JD	195	# Validate test
bd666153	196	validate_trace_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
ebaaaf5e JD	197	validate_trace $EVENT_NAME $TRACE_PATH/
	198	if [ $? -eq 0 ]; then
	199	# Only delete if successful
	200	rm -rf $TRACE_PATH
ebaaaf5e	201	fi
209b934f	202
0fc2834c	203	stop_test_apps
ebaaaf5e JD	204	}
ebaaaf5e JD	205
ae779dd6 MD	206	function test_ust_local_snapshot_small_discard_buffers ()
	207	{
	208	NR_ITER=10000
	209	NR_USEC_WAIT=0
	210	OLDCPUSET=$(taskset -p $$)
	211
	212	diag "Test local UST snapshots with small discard buffers"
	213	taskset -p 0x1 $$ 1>/dev/null 2>&1 # CPU 0 only
	214	create_lttng_session_no_output $SESSION_NAME
	215	enable_mmap_small_discard_ust_channel $SESSION_NAME $CHANNEL_NAME
	216	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	217	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	218	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
ae779dd6 MD	219
	220	# Run test apps, wait for them to complete.
	221	start_test_app
	222	wait_test_apps
	223
	224	# Take first snapshot, remember first line.
	225	lttng_snapshot_record $SESSION_NAME
	226	FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
	227	diag "First line (1st snapshot): $FIRST_LINE"
	228	rm -rf $TRACE_PATH/
	229
	230	# Run test apps, wait for them to complete.
	231	start_test_app
	232	wait_test_apps
	233
	234	# Take second snapshot, remember first line.
	235	lttng_snapshot_record $SESSION_NAME
	236	FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
	237	diag "First line (2nd snapshot): $FIRST_LINE_2"
	238	rm -rf $TRACE_PATH/
	239
	240	if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
ce83431d	241	fail "First snapshot event do not match"
ae779dd6	242	else
ce83431d	243	pass "First snapshot event match"
ae779dd6 MD	244	fi
	245
	246	stop_lttng_tracing_ok $SESSION_NAME
	247	destroy_lttng_session_ok $SESSION_NAME
	248	taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
	249	}
	250
	251	function test_ust_local_snapshot_small_overwrite_buffers ()
	252	{
	253	NR_ITER=10000
	254	NR_USEC_WAIT=0
	255	OLDCPUSET=$(taskset -p $$)
	256
	257	diag "Test local UST snapshots with small overwrite buffers"
	258	taskset -p 0x1 $$ 1>/dev/null 2>&1 # CPU 0 only
	259	create_lttng_session_no_output $SESSION_NAME
	260	enable_mmap_small_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
	261	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	262	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	263	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
ae779dd6 MD	264
	265	# Run test apps, wait for them to complete.
	266	start_test_app
	267	wait_test_apps
	268
	269	# Take first snapshot, remember first line.
	270	lttng_snapshot_record $SESSION_NAME
	271	FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
	272	diag "First line (1st snapshot): $FIRST_LINE"
	273	rm -rf $TRACE_PATH/
	274
	275	# Run test apps, wait for them to complete.
	276	start_test_app
	277	wait_test_apps
	278
	279	# Take second snapshot, remember first line.
	280	lttng_snapshot_record $SESSION_NAME
	281	FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
	282	diag "First line (2nd snapshot): $FIRST_LINE_2"
	283	rm -rf $TRACE_PATH/
	284
	285	if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
ce83431d	286	pass "First snapshot event do not match"
ae779dd6	287	else
ce83431d	288	fail "First snapshot event match"
ae779dd6 MD	289	fi
	290
	291	stop_lttng_tracing_ok $SESSION_NAME
	292	destroy_lttng_session_ok $SESSION_NAME
	293	taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
	294	}
	295
5e83c405 CB	296	function test_ust_local_snapshot_max_size ()
5e83c405 CB	297	{
18c9d47c	298	NR_ITER=-1
ae779dd6	299	NR_USEC_WAIT=100
034a7848	300	page_size=`getconf PAGE_SIZE`
1901f874	301	num_cpus=$(conf_proc_count)
5e83c405	302
034a7848 MJ	303	# The minimum subbuf size is the platform PAGE_SIZE
	304	subbuf_size=$(($page_size*2))
	305
5e83c405 CB	306	# The minimum size limit is min(subbuf_size) * nb_streams
	307	max_size=$(($subbuf_size*$num_cpus))
	308
	309	diag "Test local UST snapshots with max size $max_size"
	310	create_lttng_session_no_output $SESSION_NAME
	311
	312	enable_mmap_overwrite_subbuf_ust_channel $SESSION_NAME $CHANNEL_NAME $subbuf_size
	313
c4926bb5	314	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	315	start_lttng_tracing_ok $SESSION_NAME
5e83c405 CB	316
	317	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" "" $max_size
	318
209b934f DG	319	# Returns once the application has at least fired ONE tracepoint.
209b934f DG	320	start_test_app
5e83c405 CB	321
	322	lttng_snapshot_record $SESSION_NAME
	323
	324	# Check file size
	325	sum_size_tracefiles=$(find $TRACE_PATH -name "${CHANNEL_NAME}_*" \
	326	-exec stat -c '%s' {} \; \| awk '{s = s + $1}END{print s}')
	327
	328	if [ "$sum_size_tracefiles" -gt "$max_size" ]; then
	329	fail "Tracefiles size sum validation"
	330	diag "Tracefiles size sum: $sum_size_tracefiles Expected max: $max_size"
b67cdb8c JG	331	else
b67cdb8c JG	332	pass "Tracefiles size sum validation"
5e83c405 CB	333	fi
5e83c405 CB	334
96340a01	335	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	336	destroy_lttng_session_ok $SESSION_NAME
5e83c405 CB	337
5e83c405 CB	338	# Validate test
bd666153	339	validate_trace_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
5e83c405 CB	340	validate_trace $EVENT_NAME $TRACE_PATH/
	341
	342	if [ $? -eq 0 ]; then
	343	# Only delete if successful
	344	rm -rf $TRACE_PATH
	345	fi
	346
0fc2834c	347	stop_test_apps
5e83c405 CB	348	}
5e83c405 CB	349
a54047ec JD	350	function test_ust_local_snapshot_large_metadata ()
	351	{
	352	LM_EVENT="tp:tptest1,tp:tptest2,tp:tptest3,tp:tptest4,tp:tptest5"
	353	LM_PATH="$TESTDIR/utils/testapp"
	354	LM_NAME="gen-ust-nevents"
	355	LM_BIN="$LM_PATH/$LM_NAME/$LM_NAME"
	356
	357	diag "Test local UST snapshots with > 4kB metadata"
	358	create_lttng_session_no_output $SESSION_NAME
	359	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	360	enable_ust_lttng_event_ok $SESSION_NAME $LM_EVENT $CHANNEL_NAME
e563bbdb	361	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	362	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
8db430e7	363	$LM_BIN --iter 1 --wait 1
a54047ec JD	364	ok $? "Start application to trace"
a54047ec JD	365	lttng_snapshot_record $SESSION_NAME
96340a01	366	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	367	destroy_lttng_session_ok $SESSION_NAME
a54047ec JD	368
a54047ec JD	369	# Validate test
bd666153	370	validate_trace_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
a54047ec JD	371	validate_trace $LM_EVENT $TRACE_PATH/
	372	if [ $? -eq 0 ]; then
	373	# Only delete if successful
	374	rm -rf $TRACE_PATH
a54047ec JD	375	fi
	376	}
	377
5f4c2d80 JD	378	function enable_channel_per_uid_mmap_overwrite()
	379	{
	380	sess_name=$1
	381	channel_name=$2
	382
	383	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --output mmap --overwrite >/dev/null 2>&1
	384	ok $? "Enable channel $channel_name per UID for session $sess_name"
	385	}
	386
	387	function test_ust_per_uid_local_snapshot ()
	388	{
18c9d47c JR	389	NR_ITER=-1
18c9d47c JR	390	NR_USEC_WAIT=100
891d74dd	391	diag "Test per-uid local UST snapshots"
5f4c2d80 JD	392	create_lttng_session_no_output $SESSION_NAME
5f4c2d80 JD	393	enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
c4926bb5	394	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	395	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	396	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
209b934f DG	397
	398	# Returns once the application has at least fired ONE tracepoint.
	399	start_test_app
	400
5f4c2d80	401	lttng_snapshot_record $SESSION_NAME
96340a01	402	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	403	destroy_lttng_session_ok $SESSION_NAME
5f4c2d80 JD	404
5f4c2d80 JD	405	# Validate test
bd666153	406	validate_trace_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
5f4c2d80 JD	407	validate_trace $EVENT_NAME $TRACE_PATH/
	408	if [ $? -eq 0 ]; then
	409	# Only delete if successful
	410	rm -rf $TRACE_PATH
5f4c2d80	411	fi
209b934f	412
0fc2834c	413	stop_test_apps
5f4c2d80 JD	414	}
5f4c2d80 JD	415
4f03c06d JD	416	function test_ust_per_uid_local_snapshot_post_mortem ()
4f03c06d JD	417	{
18c9d47c	418	NR_ITER=-1
ae779dd6 MD	419	NR_USEC_WAIT=100
ae779dd6 MD	420
4f03c06d JD	421	diag "Test local UST snapshots post-mortem"
	422	create_lttng_session_no_output $SESSION_NAME
	423	enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
c4926bb5	424	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	425	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	426	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
209b934f DG	427
	428	# Returns once the application has at least fired ONE tracepoint.
	429	start_test_app
0fc2834c	430	stop_test_apps
209b934f	431
4f03c06d	432	lttng_snapshot_record $SESSION_NAME
96340a01	433	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	434	destroy_lttng_session_ok $SESSION_NAME
4f03c06d JD	435
4f03c06d JD	436	# Validate test
bd666153	437	validate_trace_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" 0
4f03c06d JD	438	validate_trace $EVENT_NAME $TRACE_PATH/
	439	if [ $? -eq 0 ]; then
	440	# Only delete if successful
	441	rm -rf $TRACE_PATH
4f03c06d JD	442	fi
	443	}
	444
1d20c959	445	function test_ust_local_snapshots ()
ebaaaf5e	446	{
18c9d47c	447	NR_ITER=-1
ae779dd6 MD	448	NR_USEC_WAIT=100
ae779dd6 MD	449
1d20c959	450	diag "Test $NR_SNAPSHOT local UST snapshots"
ebaaaf5e JD	451	create_lttng_session_no_output $SESSION_NAME
ebaaaf5e JD	452	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	453	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	454	start_lttng_tracing_ok $SESSION_NAME
9f0e230a	455	lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH
209b934f DG	456
	457	# Returns once the application has at least fired ONE tracepoint.
	458	start_test_app
	459
1d20c959 DG	460	for i in $(seq 1 $NR_SNAPSHOT); do
1d20c959 DG	461	diag "Snapshot $i/$NR_SNAPSHOT"
ebaaaf5e JD	462	rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
	463	lttng_snapshot_record $SESSION_NAME
	464	# Validate test
bd666153	465	validate_trace_path_ust_uid_snapshot "$TRACE_PATH" "" "snapshot-1" $((i - 1))
ebaaaf5e JD	466	validate_trace $EVENT_NAME $TRACE_PATH/
	467	if [ $? -eq 0 ]; then
	468	# Only delete if successful
	469	rm -rf $TRACE_PATH
ebaaaf5e JD	470	fi
ebaaaf5e JD	471	done
96340a01	472	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	473	destroy_lttng_session_ok $SESSION_NAME
209b934f	474
0fc2834c	475	stop_test_apps
ebaaaf5e JD	476	}
	477
	478	plan_tests $NUM_TESTS
	479
	480	print_test_banner "$TEST_DESC"
	481
ebaaaf5e	482	start_lttng_sessiond
5e83c405 CB	483	tests=( test_ust_list_output
	484	test_ust_local_snapshot
	485	test_ust_local_snapshot_max_size
	486	test_ust_per_uid_local_snapshot
	487	test_ust_per_uid_local_snapshot_post_mortem
	488	test_ust_local_snapshot_large_metadata
ae779dd6 MD	489	test_ust_local_snapshots
	490	test_ust_local_snapshot_small_discard_buffers
	491	test_ust_local_snapshot_small_overwrite_buffers
	492	)
ebaaaf5e JD	493
	494	for fct_test in ${tests[@]};
	495	do
	496	SESSION_NAME=$(randstring 16 0)
	497	${fct_test}
ebaaaf5e JD	498	done
	499
	500	stop_lttng_sessiond