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#!/bin/bash
iface=( 10.42.0.1
10.42.2.1 )
DURATION=30
SLEEP_DURATION=7
SIZE_FILE="100MB"
TEST_FILE="random_$SIZE_FILE"
MAIN_PID=$$
KILL_CMD="k"
exec > >(tee -a iperf_s.log)
exec 2>&1
# check if iperf exists
[ -x /usr/bin/iperf ] || exit 233
if [ ! -e $TEST_FILE ]
then
dd if=/dev/urandom of=$TEST_FILE bs=$((1024*1024)) count=${SIZE_FILE//[a-zA-Z]/}
/usr/bin/md5sum $TEST_FILE > $TEST_FILE.md5sum
fi
# this run iperf client on a specified iface
load_iface()
{
while true
do
/usr/bin/iperf -c $1 -d -y c -t $((RANDOM % $DURATION + 10))
sleep 1
done
}
scp_test_file()
{
while true
do
time scp $TEST_FILE root@$1:/tmp/
sleep $((RANDOM % SLEEP_DURATION))
done
}
echo "== Starting, press \`$KILL_CMD' to stop =="
for i in "${iface[@]}"
do
load_iface $i &
scp_test_file $i &
done
# wait
while read i
do
[ "$i" = "$KILL_CMD" ] && break
done
echo "Complete! Killing all child now"
sleep 1
kill -9 -$MAIN_PID
|
