Intel 82580 lagg(4) problem

[Andriy Kopystyansky]

Цитую mybsd <mybsd at hotmail.com>:

> Set net.link.lagg.0.use_flowid=0 not solve the problem.
>
> My system is freebsd 8.4, use the e1000 driver from freebsd 8.3  
> solves this problem .
> Should confirm that the problem is driver
>
> I have already submitted the BUG.
> http://www.freebsd.org/cgi/query-pr.cgi?pr=182917
>

I can confirm, e1000 driver from freebsd 8.3 works as expected, i've  
got almost 1.8 Gb/s over lagg(4) interface, whereas using default  
driver from 9.1 couldnt get more than 1.2Gb/s.
Trying iperf test to two different dst:
1) [SUM]  0.0-54.5 sec  5.50 GBytes   867 Mbits/sec
2) [SUM]  0.0-90.1 sec  9.25 GBytes   882 Mbits/sec

ifstat on lagg,igb using 8.3 driver:
anri at host:[11:01]~#ifstat -i lagg1,igb0,igb2
       lagg1                igb0                igb2
  KB/s in  KB/s out   KB/s in  KB/s out   KB/s in  KB/s out
21748.67  221021.3  10419.36  122968.5  11442.13  150645.1
22010.81  222652.2  10954.49  125154.8  11161.90  150698.2

Test above was performed with net.link.lagg.1.use_flowid=1
Setting this to =0 leads to slightly less throughput, and noticable  
cpu overhead. (I havent any non-ip traffic).

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