--- /dev/null
+Compiling the whole code base with "-O0" is HIGHLY recommended before running
+stress tests. This makes the GDB backtrace accurate and without values
+optimized out.
+
+Use this diff:
+-------
+diff --git a/configure.ac b/configure.ac
+index d5733b3..8bbb115 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -285,7 +285,7 @@ AC_PROG_LEX
+
+ AC_DEFUN([AC_PROG_BISON], [AC_CHECK_PROGS(BISON, bison, bison)])
+
+ -CFLAGS="-Wall $CFLAGS -g -fno-strict-aliasing"
+ +CFLAGS="-Wall $CFLAGS -g -fno-strict-aliasing -O0"
+
+ DEFAULT_INCLUDES="-I\$(top_srcdir) -I\$(top_builddir) -I\$(top_builddir)/src -I\$(top_builddir)/include -
+-------
--- /dev/null
+#!/bin/bash
+#
+# Copyright (C) - 2013 David Goulet <dgoulet@efficios.com>
+#
+# This library is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation; version 2.1 of the License.
+#
+# This library is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+CURDIR=$(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 $NR_USEC_WAIT >/dev/null 2>&1 &
+ done
+ # Wait before the next round of applications.
+ sleep 3
+done
--- /dev/null
+#!/bin/bash
+#
+# Copyright (C) - 2013 David Goulet <dgoulet@efficios.com>
+#
+# This library is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation; version 2.1 of the License.
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+CURDIR=$(dirname $0)/
+TESTDIR=$CURDIR/..
+LAUNCH_APP="launch_ust_app"
+SESSION_NAME="stress"
+EVENT_NAME="tp:tptest"
+LOG_FILE="sessiond.log"
+CHANNEL_NAME="channel0"
+NUM_TESTS=16
+NR_APP=10
+NR_SESSION=5
+NR_LOOP=1000
+COREDUMP_FILE=$(cat /proc/sys/kernel/core_pattern)
+
+TEST_DESC="Stress test - $NR_SESSION sessions per UID with $NR_APP apps"
+
+source $TESTDIR/utils/utils.sh
+
+# MUST set TESTDIR before calling those functions
+
+function enable_channel_per_uid()
+{
+ local sess_name=$1
+ local channel_name=$2
+
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel --buffers-uid -u $channel_name -s $sess_name >/dev/null 2>&1
+ ok $? "Enable channel $channel_name per UID for session $sess_name"
+}
+
+function check_sessiond()
+{
+ if [ -z "$(pidof lt-lttng-sessiond)" ]; then
+ local str_date=$(date +%H%M%S-%d%m%Y)
+
+ diag "!!!The session daemon died unexpectedly!!!"
+ mv $LOG_FILE $LOG_FILE-$str_date
+ if [ -e $COREDUMP_FILE ]; then
+ mv $COREDUMP_FILE $COREDUMP_FILE-$str_date
+ fi
+ exit 1
+ fi
+}
+
+function start_sessiond()
+{
+ local SESSIOND_BIN="lttng-sessiond"
+
+ validate_kernel_version
+ if [ $? -ne 0 ]; then
+ fail "Start session daemon"
+ BAIL_OUT "*** Kernel too old for session daemon tests ***"
+ fi
+
+ if [ -z $(pidof lt-$SESSIOND_BIN) ]; then
+ # We have to start it like this so the ulimit -c is used by this
+ # process. Also, we collect any error message printed out.
+ $TESTDIR/../src/bin/lttng-sessiond/$SESSIOND_BIN --quiet --consumerd32-path="$TESTDIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$TESTDIR/../src/bin/lttng-consumerd/lttng-consumerd" >$LOG_FILE 2>&1 &
+ status=$?
+ # Wait for sessiond to bootstrap
+ sleep 2
+ ok $status "Start session daemon"
+ fi
+}
+
+test_stress()
+{
+ for b in $(seq 1 $NR_LOOP); do
+ for a in $(seq 1 $NR_SESSION); do
+ create_lttng_session $SESSION_NAME-$a $TRACE_PATH
+ check_sessiond
+ enable_channel_per_uid $SESSION_NAME-$a $CHANNEL_NAME
+ check_sessiond
+ enable_ust_lttng_event $SESSION_NAME-$a $EVENT_NAME
+ check_sessiond
+ start_lttng_tracing $SESSION_NAME-$a
+ check_sessiond
+ done
+
+ for a in $(seq 1 $NR_SESSION); do
+ stop_lttng_tracing $SESSION_NAME-$a
+ check_sessiond
+ destroy_lttng_session $SESSION_NAME-$a
+ check_sessiond
+ done
+ done
+
+ return 0
+}
+
+function cleanup()
+{
+ diag "Cleaning up!"
+ killall -9 $LAUNCH_APP
+ stop_lttng_sessiond
+}
+
+function sighandler()
+{
+ cleanup
+ rm $LOG_FILE
+ exit 1
+}
+
+trap sighandler SIGINT
+
+# Make sure we collect a coredump if possible.
+ulimit -c unlimited
+
+# MUST set TESTDIR before calling those functions
+plan_tests $NUM_TESTS
+
+print_test_banner "$TEST_DESC"
+
+start_sessiond
+
+diag "Starting applications"
+
+# Start NR_APP applications script that will spawn apps non stop.
+./$TESTDIR/stress/$LAUNCH_APP $NR_APP &
+
+TRACE_PATH=$(mktemp -d)
+
+test_stress
+out=$?
+if [ $out -ne 0 ]; then
+ cleanup
+ exit $out
+fi
+
+cleanup
+rm -rf $TRACE_PATH
+rm $LOG_FILE
+exit 0
projects / lttng-tools.git / commitdiff
