Iperf scripts designed to perform throughput tests on ovs.

iperf-client.sh

#!/bin/bash
# Run multiple parallel instances of iperf client
# Assumes iperf servers have been started, e.g.
# iperf -s -p PORT
# Examples:
# Run 5 clients for 60 seconds to server 1.1.1.1
#    iperf-multiple-clients 1.1.1.1 5 60 report
# 5 files will be created, report-1.1.1.1-5001-60.txt, ...
#
# Run 7 clients for 20 seconds with UDP
#    iperf-multipleclients 1.1.1.1 7 20 report-udp -u -b 10M

function() textSum {
    total=0
    for i in ${1[@]}; do
        number=$(echo $i | cut -d: -f1)
        unit=$(echo $i | cut -d: -f2)
        if [ "$unit" == "Gbytes" || "$unit" == "Gbits/sec"  ]; then
          multiplier=1000000000
        elif [ "$unit" == "Mbytes" || "$unit" == "Mbits/sec" ]; then
          multiplier=1000000
        elif [ "$unit" == "Kbytes" || "$unit" == "Kbits/sec"  ]; then
          multiplier=1000
        else
					multiplier=1
				fi
        #echo "·i - $number - $unit - $multiplier - $total"
        let total+=($number*$multiplier)
    done
    echo $total
}
function() toMb {
    echo $(let $1/1000000)
}

if [ $# -eq 0 ]
  then
    echo "Usage: "
	echo -e "\t$0 [server_ip] [#clients] [duration] [report_name] [options]"
	exit
fi

base_port=5000
server_ip=$1
shift
num_clients=$1
shift
duration=$1
shift
report_base=$1
shift
iperf_options="$*"

echo -e "Server: $server_ip\tDuration: $duration secs"
echo "Report:  $report_base"
echo "Options: $iperf_options"

for i in `seq 1 $num_clients`; do
	server_port=$(($base_port+$i));
	report_file=${report_base}-${server_ip}-${server_port}-${test_duration}.log
	iperf3 -c $server_ip -p $server_port -t $duration $iperf_options 2>&1 > $report_file &
	pids[${i}]=$!
done

echo "Testing..."
for pid in ${pids[*]}; do
    wait $pid
done
echo -e "Test done.\nSummary:"

bytesRX_arr=$(grep "receiver" ${report_base}-${server_ip}*.log | awk '{print $5":"$6}')
bytesRX=$(textSum $bytesRX_arr)
mBytesRX=$(toMb $bytesRX)

bytesTX_arr=$(grep "sender" ${report_base}-${server_ip}*.log | awk '{print $5":"$6}')
bytesTX=$(textSum $bytesTX_arr)
mBytesTX=$(toMb $bytesTX)

bpsRX_arr=$(grep "receiver" ${report_base}-${server_ip}*.log | awk '{print $7":"$8}')
bpsRX=$(textSum $bpsRX_arr)
mbpsRX=$(toMb $bpsRX)

bpsTX_arr=$(grep "sender" ${report_base}-${server_ip}*.log | awk '{print $7":"$8}')
bpsTX=$(textSum $bpsTX_arr)
mbpsTX=$(toMb $bpsTX)

DATE=`date '+%Y-%m-%d %H:%M:%S'`
echo -e "\tDate: $date"
echo -e "\tTX Throughput: $mbpsTX Mbits/sec"
echo -e "\tRX Throughput: $mbpsRX Mbist/sec\n"
echo -e "\tTX Total: $mBytesTX Mbytes"
echo -e "\tRX Total: $mBytesRX Mbytes"

iperf-server.sh

#!/bin/bash
# Run multiple parallel instances of iperf servers

if [ $# -eq 0 ]
  then
    echo "Usage: "
	echo -e "\t$0 start [servers] [report_name] [extra_options]"
	echo -e "\t$0 stop"
	echo -e "\t$0 status"
	exit
fi

if [ "$1" == "start" ]; then
	num_servers=$2
	report_base=$3
	shift && shift && shift
	iperf_options="$*"
	echo "Servers: $num_servers"
	echo "Report:  $report_base"
	echo "Options: $iperf_options"
	for i in `seq 1 $num_servers`; do
		server_port=$(($base_port+$i));
		report_file=${report_base}-${server_port}.log
		# echo "Running <iperf3 -s -p $server_port $iperf_options>"
		iperf3 -s -p $server_port $iperf_options 2>&1 > $report_file &
	done
elif [ "$1" == "stop" ]; then
 	iperf_pids=$(ps aux | grep "iperf" | awk '{print  $1 }' | grep -E '[0-9]')
	for i in "${iperf_pids[@]}"; do
   		kill -9 $i
	done
elif [ "$1" == "status" ]; then
	ps aux | grep "iperf"
else
	echo "Argument \"$1\" not known."
fi