function start_trace_app()
{
# Start application with a temporary file.
- $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT $APP_TMP_FILE &
+ $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT --sync-after-first-event $APP_TMP_FILE &
ret=$?
APPS_PID="${APPS_PID} ${!}"
ok $ret "Start application to trace"