pine64 512MB network unusable

Manilow · 05-01-2016, 11:33 AM

Hi,

here my iperf and iperf3 stats.

First the tests with the PINE64+, which works, but performs not as expected:

iperf as client running on the PINE64+ against Server on the same switch

Code:
------------------------------------------------------------

Client connecting to 192.168.168.140, TCP port 5001

TCP window size: 22.5 KByte (default)

------------------------------------------------------------

[  3] local 192.168.168.138 port 35172 connected with 192.168.168.140 port 5001

[ ID] Interval       Transfer     Bandwidth

[  3]  0.0-10.0 sec   452 MBytes   379 Mbits/sec

iperf3 as client running on the PINE64+ against Server on the same switch

Code:
Connecting to host 192.168.168.140, port 5201

[  4] local 192.168.168.138 port 45720 connected to 192.168.168.140 port 5201

[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd

[  4]   0.00-1.06   sec  21.3 MBytes   169 Mbits/sec    0    205 KBytes      

[  4]   1.06-2.03   sec  21.2 MBytes   183 Mbits/sec    0    208 KBytes      

[  4]   2.03-3.01   sec  31.2 MBytes   268 Mbits/sec    0    219 KBytes      

[  4]   3.01-4.00   sec  46.2 MBytes   390 Mbits/sec    0    223 KBytes      

[  4]   4.00-5.02   sec  47.5 MBytes   391 Mbits/sec    0    228 KBytes      

[  4]   5.02-6.01   sec  47.5 MBytes   406 Mbits/sec    0    255 KBytes      

[  4]   6.01-7.01   sec  51.7 MBytes   431 Mbits/sec    0    270 KBytes      

[  4]   7.01-8.02   sec  51.2 MBytes   428 Mbits/sec    0    286 KBytes      

[  4]   8.02-9.01   sec  51.2 MBytes   433 Mbits/sec    0    291 KBytes      

[  4]   9.01-10.02  sec  51.2 MBytes   428 Mbits/sec    0    294 KBytes      

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval           Transfer     Bandwidth       Retr

[  4]   0.00-10.02  sec   420 MBytes   352 Mbits/sec    0             sender

[  4]   0.00-10.02  sec   420 MBytes   352 Mbits/sec                  receiver

iperf Done.

iperf running as server on the PINE64+ connected from client on the same switch

Code:
Client connecting to 192.168.168.138, TCP port 5001

TCP window size: 85.0 KByte (default)

------------------------------------------------------------

[  3] local 192.168.168.140 port 44308 connected with 192.168.168.138 port 5001

[ ID] Interval       Transfer     Bandwidth

[  3]  0.0-10.0 sec   993 MBytes   833 Mbits/sec

iperf3 running as server on the PINE64+ connected from client on the same switch

Code:
Connecting to host 192.168.168.138, port 5201

[  4] local 192.168.168.140 port 58996 connected to 192.168.168.138 port 5201

[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd

[  4]   0.00-1.00   sec  84.5 MBytes   709 Mbits/sec  631   655 KBytes      

[  4]   1.00-2.00   sec  88.8 MBytes   744 Mbits/sec    0    748 KBytes      

[  4]   2.00-3.00   sec   102 MBytes   861 Mbits/sec    0    843 KBytes      

[  4]   3.00-4.00   sec   110 MBytes   923 Mbits/sec    0    936 KBytes      

[  4]   4.00-5.00   sec   105 MBytes   881 Mbits/sec    0   1018 KBytes      

[  4]   5.00-6.00   sec   105 MBytes   881 Mbits/sec    0   1.07 MBytes      

[  4]   6.00-7.00   sec   104 MBytes   870 Mbits/sec    0   1.14 MBytes      

[  4]   7.00-8.00   sec   106 MBytes   891 Mbits/sec    0   1.20 MBytes      

[  4]   8.00-9.00   sec   106 MBytes   891 Mbits/sec    0   1.27 MBytes      

[  4]   9.00-10.00  sec   104 MBytes   870 Mbits/sec    0   1.33 MBytes      

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval           Transfer     Bandwidth       Retr

[  4]   0.00-10.00  sec  1016 MBytes   852 Mbits/sec  631             sender

[  4]   0.00-10.00  sec  1013 MBytes   850 Mbits/sec                  receiver

iperf Done.

Now the tests with the 512MB pine64 (w/o +)

iperf as client running on the PINE64+ against Server on the same switch

Code:
Client connecting to 192.168.168.140, TCP port 5001

TCP window size: 22.5 KByte (default)

------------------------------------------------------------

[  3] local 192.168.168.138 port 42403 connected with 192.168.168.140 port 5001

[ ID] Interval       Transfer     Bandwidth

[  3]  0.0-10.0 sec   113 MBytes  94.4 Mbits/sec

iperf3 as client running on the PINE64+ against Server on the same switch

Code:
Connecting to host 192.168.168.140, port 5201

[  4] local 192.168.168.138 port 51087 connected to 192.168.168.140 port 5201

[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd

[  4]   0.00-1.00   sec  11.5 MBytes  96.8 Mbits/sec    0    154 KBytes       

[  4]   1.00-2.00   sec  11.3 MBytes  94.6 Mbits/sec    0    158 KBytes       

[  4]   2.00-3.00   sec  11.2 MBytes  94.1 Mbits/sec    0    160 KBytes       

[  4]   3.00-4.00   sec  11.3 MBytes  94.6 Mbits/sec    0    161 KBytes       

[  4]   4.00-5.00   sec  11.3 MBytes  94.7 Mbits/sec    0    161 KBytes       

[  4]   5.00-6.00   sec  11.2 MBytes  94.1 Mbits/sec    0    163 KBytes       

[  4]   6.00-7.00   sec  11.2 MBytes  94.0 Mbits/sec    0    164 KBytes       

[  4]   7.00-8.00   sec  11.2 MBytes  93.6 Mbits/sec    0    164 KBytes       

[  4]   8.00-9.00   sec  11.3 MBytes  94.4 Mbits/sec    0    165 KBytes       

[  4]   9.00-10.00  sec  11.3 MBytes  94.5 Mbits/sec    0    167 KBytes       

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval           Transfer     Bandwidth       Retr

[  4]   0.00-10.00  sec   113 MBytes  94.5 Mbits/sec    0             sender

[  4]   0.00-10.00  sec   112 MBytes  94.3 Mbits/sec                  receiver

iperf Done.

iperf running as server on the PINE64+ connected from client on the same switch

Code:
Client connecting to 192.168.168.138, TCP port 5001

TCP window size: 85.0 KByte (default)

------------------------------------------------------------

[  3] local 192.168.168.140 port 44314 connected with 192.168.168.138 port 5001

[ ID] Interval       Transfer     Bandwidth

[  3]  0.0-10.0 sec   109 MBytes  91.1 Mbits/sec

iperf3 running as server on the PINE64+ connected from client on the same switch

Code:
Connecting to host 192.168.168.138, port 5201

[  4] local 192.168.168.140 port 59032 connected to 192.168.168.138 port 5201

[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd

[  4]   0.00-1.00   sec  11.0 MBytes  91.9 Mbits/sec   42   17.0 KBytes       

[  4]   1.00-2.00   sec  10.8 MBytes  90.7 Mbits/sec   32   36.8 KBytes       

[  4]   2.00-3.00   sec  11.2 MBytes  93.8 Mbits/sec   27   41.0 KBytes       

[  4]   3.00-4.00   sec  11.0 MBytes  92.2 Mbits/sec   45   46.7 KBytes       

[  4]   4.00-5.00   sec  10.8 MBytes  90.7 Mbits/sec   47   14.1 KBytes       

[  4]   5.00-6.00   sec  8.20 MBytes  68.8 Mbits/sec   84   5.66 KBytes       

[  4]   6.00-7.00   sec  7.08 MBytes  59.4 Mbits/sec   66   14.1 KBytes       

[  4]   7.00-8.00   sec  9.69 MBytes  81.3 Mbits/sec   48   48.1 KBytes       

[  4]   8.00-9.00   sec  10.6 MBytes  89.1 Mbits/sec   85   14.1 KBytes       

[  4]   9.00-10.00  sec  4.29 MBytes  36.0 Mbits/sec   91   5.66 KBytes       

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval           Transfer     Bandwidth       Retr

[  4]   0.00-10.00  sec  94.7 MBytes  79.4 Mbits/sec  567             sender

[  4]   0.00-10.00  sec  94.3 MBytes  79.1 Mbits/sec                  receiver

iperf Done.

---------------------

Connecting to host 192.168.168.138, port 5201

[  4] local 192.168.168.140 port 59056 connected to 192.168.168.138 port 5201

[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd

[  4]   0.00-1.00   sec  2.74 MBytes  23.0 Mbits/sec   54   2.83 KBytes       

[  4]   1.00-2.00   sec  10.7 MBytes  89.7 Mbits/sec   74   18.4 KBytes       

[  4]   2.00-3.00   sec  5.34 MBytes  44.8 Mbits/sec  110   5.66 KBytes       

[  4]   3.00-4.00   sec   127 KBytes  1.04 Mbits/sec   14   2.83 KBytes       

[  4]   4.00-5.00   sec   127 KBytes  1.04 Mbits/sec   12   2.83 KBytes       

[  4]   5.00-6.00   sec  0.00 Bytes   0.00 bits/sec    12   2.83 KBytes       

[  4]   6.00-7.00   sec   127 KBytes  1.04 Mbits/sec   12   2.83 KBytes       

[  4]   7.00-8.00   sec   127 KBytes  1.04 Mbits/sec   20   1.41 KBytes       

[  4]   8.00-9.00   sec  0.00 Bytes   0.00 bits/sec    11   2.83 KBytes       

[  4]   9.00-10.00  sec  6.71 MBytes  56.3 Mbits/sec  104   5.66 KBytes       

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval           Transfer     Bandwidth       Retr

[  4]   0.00-10.00  sec  26.0 MBytes  21.8 Mbits/sec  423             sender

[  4]   0.00-10.00  sec  25.7 MBytes  21.6 Mbits/sec                  receiver

iperf Done.

The Duplicates are in most cases SACK (selective acknowledgements).

I will try tomorrow to get some stripped tcpdumps, I can post here

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