Tests: Add stress test for multi session per UID

[lttng-tools.git] / tests / stress / launch_ust_app

#!/bin/bash
#
# Copyright (C) - 2013 David Goulet <dgoulet@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

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

NR_APP=1
NR_USEC_WAIT=5000000
NR_APP_LOOP=1

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

source $TESTDIR/utils/utils.sh

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

# Number of application to spawn.
if [ -n "$1" ]; then
	NR_APP=$1
fi

# Number of seconds before the next loop is done in the app.
if [ -n "$2" ]; then
	NR_USEC_WAIT=$(echo $(( $2 * 1000000 )))
fi

# Number of loop the application should do meaning one TP is hit per loop.
if [ -n "$3" ]; then
	NR_APP_LOOP=$3
fi

# MUST set TESTDIR before this point.

# Infinite loop. Spawns NR_APP apps for NR_USEC_WAIT doing NR_APP_LOOP.
while :; do
	for j in `seq 1 $NR_APP`; do
		$TESTAPP_BIN $NR_APP_LOOP $NR_USEC_WAIT >/dev/null 2>&1 &
	done
	# Wait before the next round of applications.
	sleep 3
done