#110 --trip-times with small packets

[Robert McMahon]

Fix so that --trip-times works with small packets

[Robert McMahon]

This is fixed in the June 11 version of 2.1.1

[root@ryzen3950 iperf2-code]# src/iperf -v
iperf version 2.1.1-dev (11 June 2021) pthreads


[root@ryzen3950 iperf2-code]# src/iperf -c 192.168.1.76 -l 18 --trip-times -u -i 1
------------------------------------------------------------
Client connecting to 192.168.1.76, UDP port 5001
Sending 18 byte datagrams, IPG target: 137.33 us (kalman adjust)
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  1] local 192.168.1.86 port 46925 connected with 192.168.1.76 port 5001 (trip-times)
[ ID] Interval       Transfer     Bandwidth
[  1] 0.00-1.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 1.00-2.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 2.00-3.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 3.00-4.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 4.00-5.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 5.00-6.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 6.00-7.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 7.00-8.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 8.00-9.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 9.00-10.00 sec   128 KBytes  1.05 Mbits/sec
[  1] 0.00-10.00 sec  1.25 MBytes  1.05 Mbits/sec
[  1] Sent 72823 datagrams
[  1] Server Report:
[ ID] Interval        Transfer     Bandwidth        Jitter   Lost/Total  Latency avg/min/max/stdev PPS NetPwr
[  1] 0.00-10.00 sec  1.25 MBytes  1.05 Mbits/sec   0.015 ms 0/72822 (0%) 0.085/0.019/0.162/0.027 ms 7281 pps 1539


[rjmcmahon@rjm-nas iperf2-code]$ src/iperf -s -u -i 1 
------------------------------------------------------------
Server listening on UDP port 5001
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
WARN: first received packet (id=1) was not first sent packet, report start time will be off
[  1] local 192.168.1.76%enp2s0 port 5001 connected with 192.168.1.86 port 46925 (trip-times) (sock=3) on 2021-06-11 21:32:55 (PDT)
[ ID] Interval        Transfer     Bandwidth        Jitter   Lost/Total  Latency avg/min/max/stdev PPS  Rx/inP  NetPwr
[  1] 0.00-1.00 sec   128 KBytes  1.05 Mbits/sec   0.010 ms 0/7282 (0%) 0.087/0.022/0.162/0.025 ms 7285 pps 7282/1(0) pkts 1510
[  1] 1.00-2.00 sec   128 KBytes  1.05 Mbits/sec   0.018 ms 0/7283 (0%) 0.089/0.023/0.162/0.025 ms 7282 pps 7283/1(0) pkts 1468
[  1] 2.00-3.00 sec   128 KBytes  1.05 Mbits/sec   0.017 ms 0/7282 (0%) 0.089/0.023/0.160/0.025 ms 7282 pps 7282/1(0) pkts 1475
[  1] 3.00-4.00 sec   128 KBytes  1.05 Mbits/sec   0.020 ms 0/7281 (0%) 0.089/0.022/0.160/0.024 ms 7281 pps 7281/1(0) pkts 1473
[  1] 4.00-5.00 sec   128 KBytes  1.05 Mbits/sec   0.019 ms 0/7281 (0%) 0.085/0.022/0.148/0.025 ms 7282 pps 7281/1(0) pkts 1539
[  1] 5.00-6.00 sec   128 KBytes  1.05 Mbits/sec   0.013 ms 0/7282 (0%) 0.082/0.019/0.160/0.028 ms 7282 pps 7282/1(0) pkts 1593
[  1] 6.00-7.00 sec   128 KBytes  1.05 Mbits/sec   0.017 ms 0/7281 (0%) 0.076/0.019/0.143/0.031 ms 7281 pps 7281/1(0) pkts 1728
[  1] 7.00-8.00 sec   128 KBytes  1.05 Mbits/sec   0.016 ms 0/7283 (0%) 0.083/0.021/0.140/0.029 ms 7282 pps 7283/1(0) pkts 1574
[  1] 8.00-9.00 sec   128 KBytes  1.05 Mbits/sec   0.020 ms 0/7282 (0%) 0.081/0.022/0.139/0.028 ms 7281 pps 7282/1(0) pkts 1610
[  1] 9.00-10.00 sec   128 KBytes  1.05 Mbits/sec   0.017 ms 0/7281 (0%) 0.090/0.023/0.156/0.024 ms 7282 pps 7281/1(0) pkts 1463
[  1] 0.00-10.00 sec  1.25 MBytes  1.05 Mbits/sec   0.016 ms 0/72822 (0%) 0.085/0.019/0.162/0.027 ms 7282 pps 72822/1(0) pkts 1539