iperf3 results in packets per second? - udp

Question

Can iperf3 report measurements also in terms of packets per second, when generating UDP traffic?
A typical output with the verbose mode is the following:
Test Complete. Summary Results:
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 4] 0.00-10.00 sec 1.64 GBytes 1.41 Gbits/sec 0.010 ms 804029/1208925 (67%)
[ 4] Sent 1208925 datagrams
CPU Utilization: local/sender 99.6% (16.4%u/83.3%s), remote/receiver 0.1% (0.0%u/0.1%s)
iperf Done.
I see that in iperf2 one could specify the input rate in pps, but there is no mentioning of the measured received rate (I don't see this feature in iperf3 anyway)

Answer 1

I don't see an option for pps in iperf3, however the link below details a way to get what you are looking for.
https://discuss.aerospike.com/t/benchmarking-throughput-and-packet-count-with-iperf3/2791
Run your iperf3 test as you normally would. On the server create a script containing the following:
#!/bin/bash
INTERVAL="1" # update interval in seconds
if [ -z "$1" ]; then
echo
echo usage: $0 [network-interface]
echo
echo e.g. $0 eth0
echo
echo shows packets-per-second
exit
fi
IF=$1
while true
do
R1=`cat /sys/class/net/$1/statistics/rx_packets`
T1=`cat /sys/class/net/$1/statistics/tx_packets`
sleep $INTERVAL
R2=`cat /sys/class/net/$1/statistics/rx_packets`
T2=`cat /sys/class/net/$1/statistics/tx_packets`
TXPPS=`expr $T2 - $T1`
RXPPS=`expr $R2 - $R1`
echo "TX $1: $TXPPS pkts/s RX $1: $RXPPS pkts/s"
done
This will give you an output in terms of packets per second.