[lttng-tools.git] / tests / regression / tools / tracefile-limits / test_tracefile_size

#!/bin/bash
#
# Copyright (C) 2013 Christian Babeux <christian.babeux@efficios.com>
#
# SPDX-License-Identifier: LGPL-2.1-only

TEST_DESC="Tracefile size limits"

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..

NR_ITER=1000

PAGE_SIZE=$(getconf PAGE_SIZE)

TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"

NUM_TESTS=66

source $TESTDIR/utils/utils.sh

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

function enable_lttng_channel_size_limit ()
{
	sess_name="$1"
	channel_name="$2"
	tracefile_size_limit="$3"

	test_name="Enable channel $channel_name "
	test_name+="for session $sess_name: "
	test_name+="$tracefile_size_limit bytes tracefile limit"

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
	    -u $channel_name -s $sess_name --buffers-pid \
	    --subbuf-size=$PAGE_SIZE \
	    -C $tracefile_size_limit >/dev/null 2>&1

	ok $? "$test_name"
}

function enable_ust_lttng_event_per_channel ()
{
	sess_name="$1"
	event_name="$2"
	channel_name="$3"

	test_name="Enable event $event_name "
	test_name+="for session $sess_name "
	test_name+="in channel $channel_name"

	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \
	    -s $sess_name -u -c $channel_name >/dev/null 2>&1

	ok $? "$test_name"
}

function check_file_size ()
{
	path="$1"
	file_pattern="$2"
	expected_max_size="$3"

	find $path -name "$file_pattern" -exec stat -c '%n %s' {} \; \
	    | while read file_info;
	do
		name=$(echo $file_info | cut -f1 -d ' ')
		size=$(echo $file_info | cut -f2 -d ' ')

		if [ "$size" -gt "$expected_max_size" ]; then
			diag_msg="file: $name size: $size"
			diag_msg+="expected maximum size: $expected_max_size"
			diag "$diag_msg"
			exit 1
		fi
	done

	ok $? "File size validation"
}

function test_tracefile_size_limit ()
{
	size_limit="$1"
	trace_path=$(mktemp -d)
	session_name=$(randstring 16 0)
	channel_name="channel"
	event_name="tp:tptest"

	diag "Test tracefile size limit : $size_limit bytes"

	create_lttng_session_ok $session_name $trace_path

	enable_lttng_channel_size_limit \
	    $session_name $channel_name $size_limit

	enable_ust_lttng_event_per_channel \
	    $session_name $event_name $channel_name

	start_lttng_tracing_ok $session_name

	$TESTAPP_BIN -i $NR_ITER >/dev/null 2>&1

	stop_lttng_tracing_ok $session_name

	destroy_lttng_session_ok $session_name

	# Validate file size, each one shall be no larger than the
	# specified size limit

	check_file_size $trace_path "${channel_name}_*" $size_limit

	# Validate tracing data, we should at least have some events

	validate_trace $event_name $trace_path

	rm -rf $trace_path
}

function test_tracefile_size_limit_pagesize ()
{
	# Set a size limit lower than the page_size
	size_limit="$(($PAGE_SIZE-2))"
	trace_path=$(mktemp -d)
	session_name=$(randstring 16 0)
	channel_name="channel"
	event_name="tp:tptest"

	diag "Test tracefile size limit lower than PAGE_SIZE : $size_limit bytes"

	create_lttng_session_ok $session_name $trace_path

	enable_lttng_channel_size_limit \
	    $session_name $channel_name $size_limit

	enable_ust_lttng_event_per_channel \
	    $session_name $event_name $channel_name

	start_lttng_tracing_ok $session_name

	$TESTAPP_BIN -i $NR_ITER >/dev/null 2>&1

	stop_lttng_tracing_ok $session_name

	destroy_lttng_session_ok $session_name

	# Validate file size, expect file size to be equal to the page size

	check_file_size $trace_path "${channel_name}_*" $PAGE_SIZE

	# Validate tracing data, we should at least have some events

	validate_trace $event_name $trace_path

	rm -rf $trace_path
}

plan_tests $NUM_TESTS

print_test_banner "$TEST_DESC"

start_lttng_sessiond

# Test with multiples of PAGE_SIZE
LIMITS=("$(($PAGE_SIZE))"
	"$(($PAGE_SIZE*2))"
	"$(($PAGE_SIZE*4))"
	"$(($PAGE_SIZE*8))"
	"$(($PAGE_SIZE*16))"
	"$(($PAGE_SIZE*32))")

for limit in ${LIMITS[@]};
do
	test_tracefile_size_limit $limit
done

# Test with a value that is not a multiple of PAGE_SIZE
test_tracefile_size_limit "$(($PAGE_SIZE+1024))"

# Test that a value lower than the PAGE_SIZE is rounded to it
test_tracefile_size_limit_pagesize

stop_lttng_sessiond
Commit	Line	Data
	1	#!/bin/bash
	2	#
	3	# Copyright (C) 2013 Christian Babeux <christian.babeux@efficios.com>
	4	#
	5	# SPDX-License-Identifier: LGPL-2.1-only
	6
	7	TEST_DESC="Tracefile size limits"
	8
	9	CURDIR=$(dirname $0)/
	10	TESTDIR=$CURDIR/../../..
	11
	12	NR_ITER=1000
	13
	14	PAGE_SIZE=$(getconf PAGE_SIZE)
	15
	16	TESTAPP_PATH="$TESTDIR/utils/testapp"
	17	TESTAPP_NAME="gen-ust-events"
	18	TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
	19
	20	NUM_TESTS=66
	21
	22	source $TESTDIR/utils/utils.sh
	23
	24	if [ ! -x "$TESTAPP_BIN" ]; then
	25	BAIL_OUT "No UST events binary detected."
	26	fi
	27
	28	function enable_lttng_channel_size_limit ()
	29	{
	30	sess_name="$1"
	31	channel_name="$2"
	32	tracefile_size_limit="$3"
	33
	34	test_name="Enable channel $channel_name "
	35	test_name+="for session $sess_name: "
	36	test_name+="$tracefile_size_limit bytes tracefile limit"
	37
	38	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
	39	-u $channel_name -s $sess_name --buffers-pid \
	40	--subbuf-size=$PAGE_SIZE \
	41	-C $tracefile_size_limit >/dev/null 2>&1
	42
	43	ok $? "$test_name"
	44	}
	45
	46	function enable_ust_lttng_event_per_channel ()
	47	{
	48	sess_name="$1"
	49	event_name="$2"
	50	channel_name="$3"
	51
	52	test_name="Enable event $event_name "
	53	test_name+="for session $sess_name "
	54	test_name+="in channel $channel_name"
	55
	56	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \
	57	-s $sess_name -u -c $channel_name >/dev/null 2>&1
	58
	59	ok $? "$test_name"
	60	}
	61
	62	function check_file_size ()
	63	{
	64	path="$1"
	65	file_pattern="$2"
	66	expected_max_size="$3"
	67
	68	find $path -name "$file_pattern" -exec stat -c '%n %s' {} \; \
	69	\| while read file_info;
	70	do
	71	name=$(echo $file_info \| cut -f1 -d ' ')
	72	size=$(echo $file_info \| cut -f2 -d ' ')
	73
	74	if [ "$size" -gt "$expected_max_size" ]; then
	75	diag_msg="file: $name size: $size"
	76	diag_msg+="expected maximum size: $expected_max_size"
	77	diag "$diag_msg"
	78	exit 1
	79	fi
	80	done
	81
	82	ok $? "File size validation"
	83	}
	84
	85	function test_tracefile_size_limit ()
	86	{
	87	size_limit="$1"
	88	trace_path=$(mktemp -d)
	89	session_name=$(randstring 16 0)
	90	channel_name="channel"
	91	event_name="tp:tptest"
	92
	93	diag "Test tracefile size limit : $size_limit bytes"
	94
	95	create_lttng_session_ok $session_name $trace_path
	96
	97	enable_lttng_channel_size_limit \
	98	$session_name $channel_name $size_limit
	99
	100	enable_ust_lttng_event_per_channel \
	101	$session_name $event_name $channel_name
	102
	103	start_lttng_tracing_ok $session_name
	104
	105	$TESTAPP_BIN -i $NR_ITER >/dev/null 2>&1
	106
	107	stop_lttng_tracing_ok $session_name
	108
	109	destroy_lttng_session_ok $session_name
	110
	111	# Validate file size, each one shall be no larger than the
	112	# specified size limit
	113
	114	check_file_size $trace_path "${channel_name}_*" $size_limit
	115
	116	# Validate tracing data, we should at least have some events
	117
	118	validate_trace $event_name $trace_path
	119
	120	rm -rf $trace_path
	121	}
	122
	123	function test_tracefile_size_limit_pagesize ()
	124	{
	125	# Set a size limit lower than the page_size
	126	size_limit="$(($PAGE_SIZE-2))"
	127	trace_path=$(mktemp -d)
	128	session_name=$(randstring 16 0)
	129	channel_name="channel"
	130	event_name="tp:tptest"
	131
	132	diag "Test tracefile size limit lower than PAGE_SIZE : $size_limit bytes"
	133
	134	create_lttng_session_ok $session_name $trace_path
	135
	136	enable_lttng_channel_size_limit \
	137	$session_name $channel_name $size_limit
	138
	139	enable_ust_lttng_event_per_channel \
	140	$session_name $event_name $channel_name
	141
	142	start_lttng_tracing_ok $session_name
	143
	144	$TESTAPP_BIN -i $NR_ITER >/dev/null 2>&1
	145
	146	stop_lttng_tracing_ok $session_name
	147
	148	destroy_lttng_session_ok $session_name
	149
	150	# Validate file size, expect file size to be equal to the page size
	151
	152	check_file_size $trace_path "${channel_name}_*" $PAGE_SIZE
	153
	154	# Validate tracing data, we should at least have some events
	155
	156	validate_trace $event_name $trace_path
	157
	158	rm -rf $trace_path
	159	}
	160
	161	plan_tests $NUM_TESTS
	162
	163	print_test_banner "$TEST_DESC"
	164
	165	start_lttng_sessiond
	166
	167	# Test with multiples of PAGE_SIZE
	168	LIMITS=("$(($PAGE_SIZE))"
	169	"$(($PAGE_SIZE*2))"
	170	"$(($PAGE_SIZE*4))"
	171	"$(($PAGE_SIZE*8))"
	172	"$(($PAGE_SIZE*16))"
	173	"$(($PAGE_SIZE*32))")
	174
	175	for limit in ${LIMITS[@]};
	176	do
	177	test_tracefile_size_limit $limit
	178	done
	179
	180	# Test with a value that is not a multiple of PAGE_SIZE
	181	test_tracefile_size_limit "$(($PAGE_SIZE+1024))"
	182
	183	# Test that a value lower than the PAGE_SIZE is rounded to it
	184	test_tracefile_size_limit_pagesize
	185
	186	stop_lttng_sessiond