frank@frank-G5-U20:~
$ iperf3 -c 192.168.0.11 -R
Connecting to host 192.168.0.11, port 5201
Reverse mode, remote host 192.168.0.11 is sending
[ 5] local 192.168.0.21 port 43304 connected to 192.168.0.11 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 112 MBytes 937 Mbits/sec
[ 5] 1.00-2.00 sec 112 MBytes 939 Mbits/sec
[ 5] 2.00-3.00 sec 112 MBytes 939 Mbits/sec
[ 5] 3.00-4.00 sec 112 MBytes 939 Mbits/sec
[ 5] 4.00-5.00 sec 112 MBytes 939 Mbits/sec
[ 5] 5.00-6.00 sec 112 MBytes 939 Mbits/sec
[ 5] 6.00-7.00 sec 112 MBytes 939 Mbits/sec
[ 5] 7.00-8.00 sec 112 MBytes 939 Mbits/sec
[ 5] 8.00-9.00 sec 112 MBytes 939 Mbits/sec
[ 5] 9.00-10.00 sec 112 MBytes 939 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.09 GBytes 940 Mbits/sec 0 sender
[ 5] 0.00-10.00 sec 1.09 GBytes 939 Mbits/sec receiver
iperf Done.
frank@frank-G5-U20:~
$ iperf3 -c 192.168.0.11
Connecting to host 192.168.0.11, port 5201
[ 5] local 192.168.0.21 port 43308 connected to 192.168.0.11 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 114 MBytes 957 Mbits/sec 0 373 KBytes
[ 5] 1.00-2.00 sec 93.6 MBytes 785 Mbits/sec 0 619 KBytes
[ 5] 2.00-3.00 sec 91.2 MBytes 765 Mbits/sec 0 619 KBytes
[ 5] 3.00-4.00 sec 91.2 MBytes 765 Mbits/sec 0 619 KBytes
[ 5] 4.00-5.00 sec 91.1 MBytes 764 Mbits/sec 0 714 KBytes
[ 5] 5.00-6.00 sec 91.2 MBytes 765 Mbits/sec 0 714 KBytes
[ 5] 6.00-7.00 sec 91.2 MBytes 765 Mbits/sec 0 714 KBytes
[ 5] 7.00-8.00 sec 92.5 MBytes 776 Mbits/sec 0 714 KBytes
[ 5] 8.00-9.00 sec 91.2 MBytes 765 Mbits/sec 0 714 KBytes
[ 5] 9.00-10.00 sec 91.2 MBytes 765 Mbits/sec 0 714 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 939 MBytes 787 Mbits/sec 0 sender
[ 5] 0.00-10.00 sec 933 MBytes 782 Mbits/sec receiver
iperf Done.
frank@frank-G5-U20:~
$ uname -a
Linux frank-G5-U20 5.4.52-custom #1 SMP Thu Jul 16 19:16:51 CEST 2020 x86_64
x86_64 x86_64 GNU/Linux
frank@frank-G5-U20:~
$ cat /etc/issue
Ubuntu 20.04 LTS \n \l
frank@frank-G5-U20:~
$ ethtool -S enp3s0
NIC statistics:
tx_packets: 1085630
rx_packets: 844392
tx_errors: 0
rx_errors: 0
rx_missed: 0
align_errors: 0
tx_single_collisions: 0
tx_multi_collisions: 0
unicast: 844390
broadcast: 1
multicast: 1
tx_aborted: 0
tx_underrun: 0
frank@frank-G5-U20:~
$
other side:
root@bpi-r2:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.0.21, port 43302
[ 5] local 192.168.0.11 port 5201 connected to 192.168.0.21 port 43304
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 113 MBytes 947 Mbits/sec 0 460 KBytes
[ 5] 1.00-2.00 sec 112 MBytes 937 Mbits/sec 0 460 KBytes
[ 5] 2.00-3.00 sec 112 MBytes 937 Mbits/sec 0 460 KBytes
[ 5] 3.00-4.00 sec 112 MBytes 942 Mbits/sec 0 460 KBytes
[ 5] 4.00-5.00 sec 112 MBytes 938 Mbits/sec 0 460 KBytes
[ 5] 5.00-6.00 sec 112 MBytes 937 Mbits/sec 0 460 KBytes
[ 5] 6.00-7.00 sec 112 MBytes 941 Mbits/sec 0 460 KBytes
[ 5] 7.00-8.00 sec 112 MBytes 937 Mbits/sec 0 460 KBytes
[ 5] 8.00-9.00 sec 112 MBytes 940 Mbits/sec 0 460 KBytes
[ 5] 9.00-10.00 sec 112 MBytes 942 Mbits/sec 0 460 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.09 GBytes 940 Mbits/sec 0 sender
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.0.21, port 43306
[ 5] local 192.168.0.11 port 5201 connected to 192.168.0.21 port 43308
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 112 MBytes 936 Mbits/sec
[ 5] 1.00-2.00 sec 90.1 MBytes 755 Mbits/sec
[ 5] 2.00-3.00 sec 91.5 MBytes 768 Mbits/sec
[ 5] 3.00-4.00 sec 91.5 MBytes 767 Mbits/sec
[ 5] 4.00-5.00 sec 91.2 MBytes 765 Mbits/sec
[ 5] 5.00-6.00 sec 90.9 MBytes 763 Mbits/sec
[ 5] 6.00-7.00 sec 91.4 MBytes 766 Mbits/sec
[ 5] 7.00-8.00 sec 92.1 MBytes 774 Mbits/sec
[ 5] 8.00-9.00 sec 91.5 MBytes 767 Mbits/sec
[ 5] 9.00-10.00 sec 90.9 MBytes 762 Mbits/sec
[ 5] 10.00-10.00 sec 128 KBytes 390 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 933 MBytes 782 Mbits/sec receiver
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
root@bpi-r2:~# ethtool -S lan0
NIC statistics:
tx_packets: 49451
tx_bytes: 1177731402
rx_packets: 1083602
rx_bytes: 1037301402
TxDrop: 0
TxCrcErr: 0
TxUnicast: 842424
TxMulticast: 26
TxBroadcast: 4
TxCollision: 0
TxSingleCollision: 0
TxMultipleCollision: 0
TxDeferred: 1
TxLateCollision: 0
TxExcessiveCollistion: 0
TxPause: 10
TxPktSz64: 23
TxPktSz65To127: 31343
TxPktSz128To255: 0
TxPktSz256To511: 2
TxPktSz512To1023: 0
Tx1024ToMax: 811096
TxBytes: 1233440386
RxDrop: 0
RxFiltering: 0
RxMulticast: 430
RxBroadcast: 24
RxAlignErr: 0
RxCrcErr: 0
RxUnderSizeErr: 0
RxFragErr: 0
RxOverSzErr: 0
RxJabberErr: 0
RxPause: 0
RxPktSz64: 355
RxPktSz65To127: 404171
RxPktSz128To255: 324
RxPktSz256To511: 667
RxPktSz512To1023: 1194
RxPktSz1024ToMax: 676891
RxBytes: 1056806238
RxCtrlDrop: 0
RxIngressDrop: 0
RxArlDrop: 0
root@bpi-r2:~#
so i have no retransmitts with custom kernel, only a limited bandwidth
if i start iperf3 on the affected client in non-reversed-mode (TX of
affected ethernet-card).
bpi-r2 is the same device i made test in starting post...
to be exact i made same test as in opening post (server on "broken" client,
client on external device):
root@bpi-r2:~# iperf3 -c 192.168.0.21
Connecting to host 192.168.0.21, port 5201
[ 5] local 192.168.0.11 port 49048 connected to 192.168.0.21 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 113 MBytes 947 Mbits/sec 0 430 KBytes
[ 5] 1.00-2.00 sec 112 MBytes 939 Mbits/sec 0 430 KBytes
[ 5] 2.00-3.00 sec 112 MBytes 939 Mbits/sec 0 430 KBytes
[ 5] 3.00-4.00 sec 112 MBytes 939 Mbits/sec 0 430 KBytes
[ 5] 4.00-5.00 sec 112 MBytes 937 Mbits/sec 0 457 KBytes
[ 5] 5.00-6.00 sec 112 MBytes 941 Mbits/sec 0 478 KBytes
[ 5] 6.00-7.00 sec 112 MBytes 941 Mbits/sec 0 478 KBytes
[ 5] 7.00-8.00 sec 112 MBytes 938 Mbits/sec 0 478 KBytes
[ 5] 8.00-9.00 sec 112 MBytes 938 Mbits/sec 0 502 KBytes
[ 5] 9.00-10.00 sec 112 MBytes 939 Mbits/sec 0 526 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.09 GBytes 940 Mbits/sec 0 sender
[ 5] 0.00-10.00 sec 1.09 GBytes 939 Mbits/sec receiver
iperf Done.
will try booting the ubuntu-kernel with the params you mentioned...
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https://bugs.launchpad.net/bugs/1880076
Title:
ubuntu 20.4 - retransmitts with r8169
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