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

#!/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 - Kernel tracing"

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..
EVENT_NAME="sched_switch"
PID_RELAYD=0
SESSION_NAME=""
CHANNEL_NAME="snapchan"

TRACE_PATH=$(mktemp -d)

NUM_TESTS=2040

source $TESTDIR/utils/utils.sh

# LTTng kernel modules check
out=`ls /lib/modules/$(uname -r)/extra | grep lttng`
if [ -z "$out" ]; then
	BAIL_OUT "LTTng modules not detected."
fi

function test_kernel_local_snapshot ()
{
	diag "Test local kernel snapshots"
	create_lttng_session_no_output $SESSION_NAME
	enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing $SESSION_NAME
	lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
	lttng_snapshot_record $SESSION_NAME
	stop_lttng_tracing $SESSION_NAME
	destroy_lttng_session $SESSION_NAME

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

function test_kernel_local_snapshot_after_stop ()
{
	diag "Test local kernel snapshots after stop"
	create_lttng_session_no_output $SESSION_NAME
	enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing $SESSION_NAME
	stop_lttng_tracing $SESSION_NAME
	lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
	lttng_snapshot_record $SESSION_NAME
	destroy_lttng_session $SESSION_NAME

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

function test_kernel_local_snapshot_append_to_metadata ()
{
	local EVENT1=sched_switch
	local EVENT2=sched_process_exit

	diag "Test local kernel snapshots with one event $EVENT1"
	create_lttng_session_no_output $SESSION_NAME
	enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
	lttng_enable_kernel_event $SESSION_NAME $EVENT1 $CHANNEL_NAME
	start_lttng_tracing $SESSION_NAME
	lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH

	# first snapshot with only 1 event
	lttng_snapshot_record $SESSION_NAME
	validate_trace $EVENT_NAME $TRACE_PATH/
	if [ $? -eq 0 ]; then
		# Only delete if successful
		rm -rf $TRACE_PATH
	else
		break
	fi

	diag "Adding event $EVENT2"
	# second snapshot with 2 events
	lttng_enable_kernel_event $SESSION_NAME $EVENT2 $CHANNEL_NAME
	rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
	lttng_snapshot_record $SESSION_NAME
	validate_trace "${EVENT1},${EVENT2}" $TRACE_PATH/
	if [ $? -eq 0 ]; then
		# Only delete if successful
		rm -rf $TRACE_PATH
	else
		break
	fi

	stop_lttng_tracing $SESSION_NAME
	destroy_lttng_session $SESSION_NAME
}

function test_kernel_1000_local_snapshots ()
{
	NB_SNAP=1000

	diag "Test local kernel snapshots"
	create_lttng_session_no_output $SESSION_NAME
	enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	start_lttng_tracing $SESSION_NAME
	lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
	for i in $(seq 1 $NB_SNAP); do
		diag "Snapshot $i/$NB_SNAP"
		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
		else
			break
		fi
	done
	stop_lttng_tracing $SESSION_NAME
	destroy_lttng_session $SESSION_NAME
}

plan_tests $NUM_TESTS

print_test_banner "$TEST_DESC"

if [ "$(id -u)" == "0" ]; then
	isroot=1
else
	isroot=0
fi

skip $isroot "Root access is needed. Skipping all kernel snapshot tests." $NUM_TESTS ||
{
	start_lttng_sessiond

	#tests=( test_kernel_1000_local_snapshots )
	tests=( test_kernel_local_snapshot test_kernel_local_snapshot_after_stop test_kernel_local_snapshot_append_to_metadata test_kernel_1000_local_snapshots )

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

	done

	stop_lttng_sessiond
}
Commit	Line	Data
07b86b52 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 - Kernel tracing"
	18
	19	CURDIR=$(dirname $0)/
	20	TESTDIR=$CURDIR/../../..
	21	EVENT_NAME="sched_switch"
	22	PID_RELAYD=0
	23	SESSION_NAME=""
	24	CHANNEL_NAME="snapchan"
	25
	26	TRACE_PATH=$(mktemp -d)
	27
	28	NUM_TESTS=2040
	29
	30	source $TESTDIR/utils/utils.sh
	31
	32	# LTTng kernel modules check
	33	out=`ls /lib/modules/$(uname -r)/extra \| grep lttng`
	34	if [ -z "$out" ]; then
	35	BAIL_OUT "LTTng modules not detected."
	36	fi
	37
	38	function test_kernel_local_snapshot ()
	39	{
	40	diag "Test local kernel snapshots"
	41	create_lttng_session_no_output $SESSION_NAME
	42	enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
	43	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	44	start_lttng_tracing $SESSION_NAME
	45	lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
	46	lttng_snapshot_record $SESSION_NAME
	47	stop_lttng_tracing $SESSION_NAME
	48	destroy_lttng_session $SESSION_NAME
	49
	50	# Validate test
78435723	51	validate_trace $EVENT_NAME $TRACE_PATH/
07b86b52 JD	52	if [ $? -eq 0 ]; then
	53	# Only delete if successful
	54	rm -rf $TRACE_PATH
	55	else
	56	break
	57	fi
	58	}
	59
	60	function test_kernel_local_snapshot_after_stop ()
	61	{
	62	diag "Test local kernel snapshots after stop"
	63	create_lttng_session_no_output $SESSION_NAME
	64	enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
	65	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	66	start_lttng_tracing $SESSION_NAME
	67	stop_lttng_tracing $SESSION_NAME
	68	lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
	69	lttng_snapshot_record $SESSION_NAME
	70	destroy_lttng_session $SESSION_NAME
	71
	72	# Validate test
78435723	73	validate_trace $EVENT_NAME $TRACE_PATH/
07b86b52 JD	74	if [ $? -eq 0 ]; then
	75	# Only delete if successful
	76	rm -rf $TRACE_PATH
	77	else
	78	break
	79	fi
	80	}
	81
	82	function test_kernel_local_snapshot_append_to_metadata ()
	83	{
78435723 JD	84	local EVENT1=sched_switch
78435723 JD	85	local EVENT2=sched_process_exit
07b86b52 JD	86
	87	diag "Test local kernel snapshots with one event $EVENT1"
	88	create_lttng_session_no_output $SESSION_NAME
	89	enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
	90	lttng_enable_kernel_event $SESSION_NAME $EVENT1 $CHANNEL_NAME
	91	start_lttng_tracing $SESSION_NAME
	92	lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
	93
	94	# first snapshot with only 1 event
	95	lttng_snapshot_record $SESSION_NAME
78435723	96	validate_trace $EVENT_NAME $TRACE_PATH/
07b86b52 JD	97	if [ $? -eq 0 ]; then
	98	# Only delete if successful
	99	rm -rf $TRACE_PATH
	100	else
	101	break
	102	fi
	103
	104	diag "Adding event $EVENT2"
	105	# second snapshot with 2 events
	106	lttng_enable_kernel_event $SESSION_NAME $EVENT2 $CHANNEL_NAME
	107	rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
	108	lttng_snapshot_record $SESSION_NAME
78435723	109	validate_trace "${EVENT1},${EVENT2}" $TRACE_PATH/
07b86b52 JD	110	if [ $? -eq 0 ]; then
	111	# Only delete if successful
	112	rm -rf $TRACE_PATH
	113	else
	114	break
	115	fi
	116
	117	stop_lttng_tracing $SESSION_NAME
	118	destroy_lttng_session $SESSION_NAME
	119	}
	120
	121	function test_kernel_1000_local_snapshots ()
	122	{
	123	NB_SNAP=1000
	124
	125	diag "Test local kernel snapshots"
	126	create_lttng_session_no_output $SESSION_NAME
	127	enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME
	128	lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
	129	start_lttng_tracing $SESSION_NAME
	130	lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
	131	for i in $(seq 1 $NB_SNAP); do
	132	diag "Snapshot $i/$NB_SNAP"
	133	rm -rf $TRACE_PATH/snapshot/* 2>/dev/null
	134	lttng_snapshot_record $SESSION_NAME
	135	# Validate test
78435723	136	validate_trace $EVENT_NAME $TRACE_PATH/
07b86b52 JD	137	if [ $? -eq 0 ]; then
	138	# Only delete if successful
	139	rm -rf $TRACE_PATH
	140	else
	141	break
	142	fi
	143	done
	144	stop_lttng_tracing $SESSION_NAME
	145	destroy_lttng_session $SESSION_NAME
	146	}
	147
	148	plan_tests $NUM_TESTS
	149
	150	print_test_banner "$TEST_DESC"
	151
	152	if [ "$(id -u)" == "0" ]; then
	153	isroot=1
	154	else
	155	isroot=0
	156	fi
	157
	158	skip $isroot "Root access is needed. Skipping all kernel snapshot tests." $NUM_TESTS \|\|
	159	{
	160	start_lttng_sessiond
	161
	162	#tests=( test_kernel_1000_local_snapshots )
	163	tests=( test_kernel_local_snapshot test_kernel_local_snapshot_after_stop test_kernel_local_snapshot_append_to_metadata test_kernel_1000_local_snapshots )
	164
	165	for fct_test in ${tests[@]};
	166	do
	167	SESSION_NAME=$(randstring 16 0)
	168	${fct_test}
	169
	170	done
	171
	172	stop_lttng_sessiond
	173	}