#!/bin/bash
#
# Run iperf client mode to check receive speed of the guest that is running
# iperf server
#
TGT=$1

N=25
while [ $N -gt 0 ]; do
	iperf -yC -c $TGT
	let "N--"
done | tee iperf-send.log

awk -F, '
{
	val[values]=$NF/1024/1024
	values++
}
END{
	sum = 0
	for (i in val) {
		sum = sum + val[i]
	}
	average = sum / values

	variant = 0
	for (i in val) {
		variant = variant + ((val[i]-average)**2)
	}
        variant = variant / values

	printf("Average bandwidth = %s Mbits/sec\n", average)
	printf("StdDev            = %s Mbits/sec\n", sqrt(variant))
}
' iperf-send.log

exit 0