netstat counts input traffic twice

[Ben RUBSON]

> On 28 Sep 2016, at 16:01, Hans Petter Selasky <hps at selasky.org> wrote:
> 
> On 09/23/16 19:59, Ben RUBSON wrote:
>> netstat -b -I mlxen1
> 
> Hi Ben,
> 
> Does the attached patch make any difference?
> 
> --HPS
> <en_port.c.diff>

Hi HPS,

Many thanks for your support !

I tested your patch, but unfortunately it does not help.

Here is iperf on sending side :

[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 1.0 sec   233 MBytes  1.95 Gbits/sec
[  3]  1.0- 2.0 sec   660 MBytes  5.54 Gbits/sec
[  3]  2.0- 3.0 sec   686 MBytes  5.76 Gbits/sec
[  3]  3.0- 4.0 sec   686 MBytes  5.75 Gbits/sec
[  3]  4.0- 5.0 sec   686 MBytes  5.75 Gbits/sec
[  3]  5.0- 6.0 sec   688 MBytes  5.77 Gbits/sec
[  3]  6.0- 7.0 sec   688 MBytes  5.77 Gbits/sec
[  3]  7.0- 8.0 sec   687 MBytes  5.76 Gbits/sec
[  3]  8.0- 9.0 sec   686 MBytes  5.75 Gbits/sec
[  3]  9.0-10.0 sec   686 MBytes  5.75 Gbits/sec
[  3]  0.0-10.0 sec  6.23 GBytes  5.36 Gbits/sec

And here is netstat on receiving side, with or without patch :

# /usr/bin/netstat -w 1 -i mlxen1
            input        (Total)           output
   packets  errs idrops      bytes    packets  errs      bytes colls
         0     0     0        852          4     0        548     0
         0     0     0  252430522       4676     0     327468     0
         0     0     0 1245732732      32177     0    2252568     0
         0     0     0 1438165382      41366     0    2895728     0
         0     0     0 1456239938      40797     0    2855898     0
         0     0     0 1446072064      40662     0    2846448     0
         0     0     0 1461133634      41127     0    2878916     0
         0     0     0 1449935660      40694     0    2848758     0
         0     0     0 1460081628      40565     0    2839658     0
         0     0     0 1458465644      40634     0    2844418     0
         0     0     0 1437992824      40706     0    2849554     0
         0     0     0  415029242      16118     0    1128522     0
         0     0     0        364          1     0        178     0

And my patched netstat :

# netstat -w 1 -i mlxen1
            input        (Total)           output
   packets  errs idrops      bytes    packets  errs      bytes colls
         3     0     0        156          2     0        304     0
     13802     0     0  127953064       7091     0     368956     0
     69634     0     0  643667952      36098     0    1877204     0
     78299     0     0  724143932      41008     0    2132524     0
     77700     0     0  717102432      40430     0    2102468     0
     80672     0     0  742520072      41880     0    2177868     0
     75676     0     0  697621964      39367     0    2047172     0
     78923     0     0  727609020      40921     0    2128000     0
     79346     0     0  730241416      40879     0    2125816     0
     79342     0     0  730034956      40867     0    2125204     0
     80737     0     0  743042220      41592     0    2162892     0
     16795     0     0  154340716       8652     0     450096     0
         1     0     0         52          1     0        160     0

Ben