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

#!/bin/bash
#
# Copyright (C) - 2013 Julien Desfossez <jdesfossez@efficios.com>
#
# This library is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; version 2.1 of the License.
#
# This library is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
TEST_DESC="Snapshots - UST tracing"

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..
EVENT_NAME="tp:tptest"
PID_RELAYD=0
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 $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 $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 $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"
	fi

	pass "Tracefiles size sum validation"

	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 $TRACE_PATH
	$LM_BIN 1 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 $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 $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 $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
	2	#
	3	# Copyright (C) - 2013 Julien Desfossez <jdesfossez@efficios.com>
	4	#
	5	# This library is free software; you can redistribute it and/or modify it under
	6	# the terms of the GNU Lesser General Public License as published by the Free
	7	# Software Foundation; version 2.1 of the License.
	8	#
	9	# This library is distributed in the hope that it will be useful, but WITHOUT
	10	# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
	11	# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
	12	# details.
	13	#
	14	# You should have received a copy of the GNU Lesser General Public License
	15	# along with this library; if not, write to the Free Software Foundation, Inc.,
	16	# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	17	TEST_DESC="Snapshots - UST tracing"
	18
	19	CURDIR=$(dirname $0)/
	20	TESTDIR=$CURDIR/../../..
	21	EVENT_NAME="tp:tptest"
ebaaaf5e JD	22	PID_RELAYD=0
	23	SESSION_NAME=""
	24	CHANNEL_NAME="snapchan"
	25	TESTAPP_PATH="$TESTDIR/utils/testapp"
	26	TESTAPP_NAME="gen-ust-events"
	27	TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
0fc2834c	28	APPS_PID=
ebaaaf5e	29
ae779dd6	30	NUM_TESTS=100
ebaaaf5e	31
1d20c959	32	TRACE_PATH=$(mktemp -d)
ebaaaf5e JD	33
	34	source $TESTDIR/utils/utils.sh
	35
	36	if [ ! -x "$TESTAPP_BIN" ]; then
	37	BAIL_OUT "No UST events binary detected."
	38	fi
	39
1d20c959 DG	40	# Need the number of snapshot to do.
	41	if [ -z $1 ]; then
	42	BAIL_OUT "A number of snapshot is needed."
	43	fi
	44	NR_SNAPSHOT=$1
	45
	46	NUM_TESTS=$(($NUM_TESTS + ($NR_SNAPSHOT * 2)))
	47
209b934f DG	48	function start_test_app()
209b934f DG	49	{
5fcaccbc	50	local tmp_file=$(mktemp -u)
209b934f DG	51
209b934f DG	52	# Start application with a temporary file.
e8526e3f	53	$TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT --sync-after-first-event $tmp_file &
0fc2834c MD	54	ret=$?
	55	APPS_PID="${APPS_PID} ${!}"
	56	ok $ret "Start application to trace"
209b934f DG	57
	58	# Wait for the application file to appear indicating that at least one
	59	# tracepoint has been fired.
	60	while [ ! -f "$tmp_file" ]; do
	61	sleep 0.5
	62	done
	63	diag "Removing test app temporary file $tmp_file"
	64	rm -f $tmp_file
	65	}
	66
ae779dd6 MD	67	function wait_test_apps()
	68	{
	69	diag "Waiting for $TESTAPP_NAME"
	70	for p in ${APPS_PID}; do
	71	wait ${p} 2>/dev/null
	72	done
	73	}
	74
0fc2834c	75	function stop_test_apps()
209b934f	76	{
0fc2834c MD	77	diag "Stopping $TESTAPP_NAME"
	78	for p in ${APPS_PID}; do
	79	kill ${p}
5402fe87	80	wait ${p} 2>/dev/null
0fc2834c	81	done
c7613334	82	APPS_PID=
209b934f DG	83	}
209b934f DG	84
5e83c405 CB	85	function snapshot_add_output ()
	86	{
	87	local sess_name=$1
	88	local trace_path=$2
	89	local name=$3
	90	local max_size=$4
	91	local extra_opt=""
	92
	93	if [ ! -z $name ]; then
	94	extra_opt+=" -n $name "
	95	fi
	96
	97	if [ ! -z $max_size ]; then
	98	extra_opt+=" -m $max_size "
	99	fi
	100
	101	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output \
	102	-s $sess_name $extra_opt $trace_path > /dev/null 2>&1
	103
	104	ok $? "Added snapshot output $trace_path ($extra_opt)"
	105	}
	106
	107	function snapshot_del_output ()
	108	{
	109	local sess_name=$1
	110	local name=$2
	111
	112	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot del-output \
	113	-s $sess_name $name > /dev/null 2>&1
	114
	115	ok $? "Deleted snapshot output named $name"
	116	}
	117
	118	function enable_mmap_overwrite_subbuf_ust_channel ()
	119	{
	120	local sess_name=$1
	121	local chan_name=$2
	122	local subbuf_size=$3
	123
	124	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
	125	$chan_name -u --output mmap --overwrite \
	126	--subbuf-size $subbuf_size > /dev/null 2>&1
	127
	128	ok $? "Enable channel $channel_name for session $sess_name with subbuf size $subbuf_size"
	129	}
	130
ae779dd6 MD	131	function enable_mmap_small_discard_ust_channel ()
	132	{
	133	local sess_name=$1
	134	local chan_name=$2
	135
	136	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
	137	$chan_name -u --output mmap --discard \
	138	--subbuf-size $(getconf PAGE_SIZE) --num-subbuf 2 \
	139	> /dev/null 2>&1
	140
	141	ok $? "Enable channel $channel_name for session $sess_name with small discard buffers"
	142	}
	143
	144	function enable_mmap_small_overwrite_ust_channel ()
	145	{
	146	local sess_name=$1
	147	local chan_name=$2
	148
	149	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
	150	$chan_name -u --output mmap --overwrite \
	151	--subbuf-size $(getconf PAGE_SIZE) --num-subbuf 2 \
	152	> /dev/null 2>&1
	153
	154	ok $? "Enable channel $channel_name for session $sess_name with small discard buffers"
	155	}
5e83c405 CB	156
	157	function test_ust_list_output ()
	158	{
	159	output_names=("randomname" "somesnapshot")
	160
	161	diag "Test UST snapshot output listing"
	162	create_lttng_session_no_output $SESSION_NAME
	163	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	164	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
5e83c405	165
e563bbdb	166	start_lttng_tracing_ok $SESSION_NAME
5e83c405 CB	167
	168	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[0]}
	169
	170	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
	171	-s $SESSION_NAME 2>&1 \| grep ${output_names[0]} > /dev/null
	172	ok $? "Snapshot named ${output_names[0]} present in list-output listing"
	173
	174	snapshot_del_output $SESSION_NAME ${output_names[0]}
	175
	176	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[1]}
	177
	178	$TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot list-output \
	179	-s $SESSION_NAME 2>&1 \| grep ${output_names[1]} > /dev/null
	180
	181	ok $? "Snapshot named ${output_names[1]} present in list-output listing"
	182
96340a01	183	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	184	destroy_lttng_session_ok $SESSION_NAME
5e83c405 CB	185	}
5e83c405 CB	186
ebaaaf5e JD	187	function test_ust_local_snapshot ()
ebaaaf5e JD	188	{
98342ba3	189	NR_ITER=-1
ae779dd6 MD	190	NR_USEC_WAIT=100
ae779dd6 MD	191
ebaaaf5e JD	192	diag "Test local UST snapshots"
	193	create_lttng_session_no_output $SESSION_NAME
	194	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	195	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	196	start_lttng_tracing_ok $SESSION_NAME
b5633831	197	lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
209b934f DG	198
	199	# Returns once the application has at least fired ONE tracepoint.
	200	start_test_app
	201
ebaaaf5e	202	lttng_snapshot_record $SESSION_NAME
96340a01	203	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	204	destroy_lttng_session_ok $SESSION_NAME
ebaaaf5e JD	205
	206	# Validate test
	207	validate_trace $EVENT_NAME $TRACE_PATH/
	208	if [ $? -eq 0 ]; then
	209	# Only delete if successful
	210	rm -rf $TRACE_PATH
ebaaaf5e	211	fi
209b934f	212
0fc2834c	213	stop_test_apps
ebaaaf5e JD	214	}
ebaaaf5e JD	215
ae779dd6 MD	216	function test_ust_local_snapshot_small_discard_buffers ()
	217	{
	218	NR_ITER=10000
	219	NR_USEC_WAIT=0
	220	OLDCPUSET=$(taskset -p $$)
	221
	222	diag "Test local UST snapshots with small discard buffers"
	223	taskset -p 0x1 $$ 1>/dev/null 2>&1 # CPU 0 only
	224	create_lttng_session_no_output $SESSION_NAME
	225	enable_mmap_small_discard_ust_channel $SESSION_NAME $CHANNEL_NAME
	226	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	227	start_lttng_tracing_ok $SESSION_NAME
	228	lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
	229
	230	# Run test apps, wait for them to complete.
	231	start_test_app
	232	wait_test_apps
	233
	234	# Take first snapshot, remember first line.
	235	lttng_snapshot_record $SESSION_NAME
	236	FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
	237	diag "First line (1st snapshot): $FIRST_LINE"
	238	rm -rf $TRACE_PATH/
	239
	240	# Run test apps, wait for them to complete.
	241	start_test_app
	242	wait_test_apps
	243
	244	# Take second snapshot, remember first line.
	245	lttng_snapshot_record $SESSION_NAME
	246	FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
	247	diag "First line (2nd snapshot): $FIRST_LINE_2"
	248	rm -rf $TRACE_PATH/
	249
	250	if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
	251	fail "First snapshot event do not match."
	252	else
	253	pass "First snapshot event match."
	254	fi
	255
	256	stop_lttng_tracing_ok $SESSION_NAME
	257	destroy_lttng_session_ok $SESSION_NAME
	258	taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
	259	}
	260
	261	function test_ust_local_snapshot_small_overwrite_buffers ()
	262	{
	263	NR_ITER=10000
	264	NR_USEC_WAIT=0
	265	OLDCPUSET=$(taskset -p $$)
	266
	267	diag "Test local UST snapshots with small overwrite buffers"
	268	taskset -p 0x1 $$ 1>/dev/null 2>&1 # CPU 0 only
	269	create_lttng_session_no_output $SESSION_NAME
	270	enable_mmap_small_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
	271	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	272	start_lttng_tracing_ok $SESSION_NAME
	273	lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
	274
	275	# Run test apps, wait for them to complete.
	276	start_test_app
	277	wait_test_apps
	278
	279	# Take first snapshot, remember first line.
280	lttng_snapshot_record $SESSION_NAME
281	FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
282	diag "First line (1st snapshot): $FIRST_LINE"
283	rm -rf $TRACE_PATH/
284
285	# Run test apps, wait for them to complete.
286	start_test_app
287	wait_test_apps
288
289	# Take second snapshot, remember first line.
290	lttng_snapshot_record $SESSION_NAME
291	FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
292	diag "First line (2nd snapshot): $FIRST_LINE_2"
293	rm -rf $TRACE_PATH/
294
295	if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
296	pass "First snapshot event do not match."
297	else
298	fail "First snapshot event match."
299	fi
300
301	stop_lttng_tracing_ok $SESSION_NAME
302	destroy_lttng_session_ok $SESSION_NAME
303	taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
304	}
305
5e83c405 CB	306	function test_ust_local_snapshot_max_size ()
5e83c405 CB	307	{
98342ba3	308	NR_ITER=-1
ae779dd6	309	NR_USEC_WAIT=100
034a7848	310	page_size=`getconf PAGE_SIZE`
1901f874	311	num_cpus=$(conf_proc_count)
5e83c405	312
034a7848 MJ	313	# The minimum subbuf size is the platform PAGE_SIZE
	314	subbuf_size=$(($page_size*2))
	315
5e83c405 CB	316	# The minimum size limit is min(subbuf_size) * nb_streams
	317	max_size=$(($subbuf_size*$num_cpus))
	318
	319	diag "Test local UST snapshots with max size $max_size"
	320	create_lttng_session_no_output $SESSION_NAME
	321
	322	enable_mmap_overwrite_subbuf_ust_channel $SESSION_NAME $CHANNEL_NAME $subbuf_size
	323
c4926bb5	324	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	325	start_lttng_tracing_ok $SESSION_NAME
5e83c405 CB	326
	327	snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" "" $max_size
	328
209b934f DG	329	# Returns once the application has at least fired ONE tracepoint.
209b934f DG	330	start_test_app
5e83c405 CB	331
	332	lttng_snapshot_record $SESSION_NAME
	333
	334	# Check file size
	335	sum_size_tracefiles=$(find $TRACE_PATH -name "${CHANNEL_NAME}_*" \
	336	-exec stat -c '%s' {} \; \| awk '{s = s + $1}END{print s}')
	337
	338	if [ "$sum_size_tracefiles" -gt "$max_size" ]; then
	339	fail "Tracefiles size sum validation"
	340	diag "Tracefiles size sum: $sum_size_tracefiles Expected max: $max_size"
	341	fi
	342
	343	pass "Tracefiles size sum validation"
	344
96340a01	345	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	346	destroy_lttng_session_ok $SESSION_NAME
5e83c405 CB	347
	348	# Validate test
	349	validate_trace $EVENT_NAME $TRACE_PATH/
	350
	351	if [ $? -eq 0 ]; then
	352	# Only delete if successful
	353	rm -rf $TRACE_PATH
	354	fi
	355
0fc2834c	356	stop_test_apps
5e83c405 CB	357	}
5e83c405 CB	358
a54047ec JD	359	function test_ust_local_snapshot_large_metadata ()
	360	{
	361	LM_EVENT="tp:tptest1,tp:tptest2,tp:tptest3,tp:tptest4,tp:tptest5"
	362	LM_PATH="$TESTDIR/utils/testapp"
	363	LM_NAME="gen-ust-nevents"
	364	LM_BIN="$LM_PATH/$LM_NAME/$LM_NAME"
	365
	366	diag "Test local UST snapshots with > 4kB metadata"
	367	create_lttng_session_no_output $SESSION_NAME
	368	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	369	enable_ust_lttng_event_ok $SESSION_NAME $LM_EVENT $CHANNEL_NAME
e563bbdb	370	start_lttng_tracing_ok $SESSION_NAME
b5633831	371	lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
a54047ec JD	372	$LM_BIN 1 1
	373	ok $? "Start application to trace"
	374	lttng_snapshot_record $SESSION_NAME
96340a01	375	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	376	destroy_lttng_session_ok $SESSION_NAME
a54047ec JD	377
	378	# Validate test
	379	validate_trace $LM_EVENT $TRACE_PATH/
	380	if [ $? -eq 0 ]; then
	381	# Only delete if successful
	382	rm -rf $TRACE_PATH
a54047ec JD	383	fi
	384	}
	385
5f4c2d80 JD	386	function enable_channel_per_uid_mmap_overwrite()
	387	{
	388	sess_name=$1
	389	channel_name=$2
	390
	391	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name --output mmap --overwrite >/dev/null 2>&1
	392	ok $? "Enable channel $channel_name per UID for session $sess_name"
	393	}
	394
	395	function test_ust_per_uid_local_snapshot ()
	396	{
98342ba3 JR	397	NR_ITER=-1
98342ba3 JR	398	NR_USEC_WAIT=100
891d74dd	399	diag "Test per-uid local UST snapshots"
5f4c2d80 JD	400	create_lttng_session_no_output $SESSION_NAME
5f4c2d80 JD	401	enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
c4926bb5	402	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	403	start_lttng_tracing_ok $SESSION_NAME
b5633831	404	lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
209b934f DG	405
	406	# Returns once the application has at least fired ONE tracepoint.
	407	start_test_app
	408
5f4c2d80	409	lttng_snapshot_record $SESSION_NAME
96340a01	410	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	411	destroy_lttng_session_ok $SESSION_NAME
5f4c2d80 JD	412
	413	# Validate test
	414	validate_trace $EVENT_NAME $TRACE_PATH/
	415	if [ $? -eq 0 ]; then
	416	# Only delete if successful
	417	rm -rf $TRACE_PATH
5f4c2d80	418	fi
209b934f	419
0fc2834c	420	stop_test_apps
5f4c2d80 JD	421	}
5f4c2d80 JD	422
4f03c06d JD	423	function test_ust_per_uid_local_snapshot_post_mortem ()
4f03c06d JD	424	{
98342ba3	425	NR_ITER=-1
ae779dd6 MD	426	NR_USEC_WAIT=100
ae779dd6 MD	427
4f03c06d JD	428	diag "Test local UST snapshots post-mortem"
	429	create_lttng_session_no_output $SESSION_NAME
	430	enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
c4926bb5	431	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	432	start_lttng_tracing_ok $SESSION_NAME
b5633831	433	lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
209b934f DG	434
	435	# Returns once the application has at least fired ONE tracepoint.
	436	start_test_app
0fc2834c	437	stop_test_apps
209b934f	438
4f03c06d	439	lttng_snapshot_record $SESSION_NAME
96340a01	440	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	441	destroy_lttng_session_ok $SESSION_NAME
4f03c06d JD	442
	443	# Validate test
	444	validate_trace $EVENT_NAME $TRACE_PATH/
	445	if [ $? -eq 0 ]; then
	446	# Only delete if successful
	447	rm -rf $TRACE_PATH
4f03c06d JD	448	fi
	449	}
	450
1d20c959	451	function test_ust_local_snapshots ()
ebaaaf5e	452	{
98342ba3	453	NR_ITER=-1
ae779dd6 MD	454	NR_USEC_WAIT=100
ae779dd6 MD	455
1d20c959	456	diag "Test $NR_SNAPSHOT local UST snapshots"
ebaaaf5e JD	457	create_lttng_session_no_output $SESSION_NAME
ebaaaf5e JD	458	enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
c4926bb5	459	enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
e563bbdb	460	start_lttng_tracing_ok $SESSION_NAME
b5633831	461	lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
209b934f DG	462
	463	# Returns once the application has at least fired ONE tracepoint.
	464	start_test_app
	465
1d20c959 DG	466	for i in $(seq 1 $NR_SNAPSHOT); do
1d20c959 DG	467	diag "Snapshot $i/$NR_SNAPSHOT"
ebaaaf5e JD	468	rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
	469	lttng_snapshot_record $SESSION_NAME
	470	# Validate test
	471	validate_trace $EVENT_NAME $TRACE_PATH/
	472	if [ $? -eq 0 ]; then
	473	# Only delete if successful
	474	rm -rf $TRACE_PATH
ebaaaf5e JD	475	fi
ebaaaf5e JD	476	done
96340a01	477	stop_lttng_tracing_ok $SESSION_NAME
67b4c664	478	destroy_lttng_session_ok $SESSION_NAME
209b934f	479
0fc2834c	480	stop_test_apps
ebaaaf5e JD	481	}
	482
	483	plan_tests $NUM_TESTS
	484
	485	print_test_banner "$TEST_DESC"
	486
ebaaaf5e	487	start_lttng_sessiond
5e83c405 CB	488	tests=( test_ust_list_output
	489	test_ust_local_snapshot
	490	test_ust_local_snapshot_max_size
	491	test_ust_per_uid_local_snapshot
	492	test_ust_per_uid_local_snapshot_post_mortem
	493	test_ust_local_snapshot_large_metadata
ae779dd6 MD	494	test_ust_local_snapshots
	495	test_ust_local_snapshot_small_discard_buffers
	496	test_ust_local_snapshot_small_overwrite_buffers
	497	)
ebaaaf5e JD	498
	499	for fct_test in ${tests[@]};
	500	do
	501	SESSION_NAME=$(randstring 16 0)
	502	${fct_test}
ebaaaf5e JD	503	done
	504
	505	stop_lttng_sessiond