Add rt-tests and stress-tests

Related-to: TOR-1198
Signed-off-by: Ming Liu <ming.liu@toradex.com>

stress-tests/stress-tests.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# CPU load
+while true; do hackbench >/dev/null 2>&1; done &
+
+# I/O load (eMMC read)
+while true; do du /usr >/dev/null 2>&1; done &
+while true; do find / -name a* >/dev/null 2>&1; done &
+
+# I/O load (USB read/write)
+if mount | grep /mnt/pendrive >/dev/null; then
+    cd /mnt/pendrive
+    tar -cf file.tar -C /var/log --exclude=lost+found -p .
+    while true; do rm -rf output; mkdir -p output; tar xfv file.tar -C output/ >/dev/null 2>&1; done &
+fi
+
+# RTC read/write
+while true; do hwclock >/dev/null 2>&1; sleep 0.1; done &
+while true; do hwclock -w >/dev/null 2>&1; sleep 0.1; done &
+
+# Network load
+while true; do iperf3 -c bouygues.iperf.fr -P 10 >/dev/null 2>&1; done
+
+echo "RT stress tests started successfully!"
+
+# Dont exit
+while true; do sleep 1; done