svn commit: r240742 - head/sys/net

[Nikolay Denev]

On Oct 5, 2012, at 10:09 AM, Gleb Smirnoff <glebius at FreeBSD.org> wrote:

> On Fri, Oct 05, 2012 at 09:34:07AM +0300, Nikolay Denev wrote:
> N> > Date: Thu Sep 20 10:05:10 2012
> N> > New Revision: 240742
> N> > URL: http://svn.freebsd.org/changeset/base/240742
> N> > 
> N> > Log:
> N> >  Convert lagg(4) to use if_transmit instead of if_start.
> N> > 
> N> >  In collaboration with:	thompsa, sbruno, fabient
> N> > 
> N> > Modified:
> N> >  head/sys/net/if_lagg.c
> ...
> N> Are there any plans to MFC this change and the one for if_bridge?
> N> This one applies cleanly on RELENG_9 and I will have the opportunity to test it later today.
> 
> Sure we can, if you test it. Thanks!
> 
> -- 
> Totus tuus, Glebius.

Patch applied and module reloaded.

I'm testing with 16 iperf instances from a RELENG_8 machine connected to a 10G port on
Extreme Networks switch with ix(4) interface, and on the other side is the machine with if_lagg,
with Intel quad igb(4) interface.

                    /0   /1   /2   /3   /4   /5   /6   /7   /8   /9   /10
     Load Average   |||||||||||||||||||||||||||||||||||||||

      Interface           Traffic               Peak                Total
          lagg0  in    464.759 MB/s        465.483 MB/s           25.686 GB
                 out    14.900 MB/s         22.543 MB/s            3.845 GB

            lo0  in      0.000 KB/s          0.000 KB/s            2.118 MB
                 out     0.000 KB/s          0.000 KB/s            2.118 MB

           igb3  in    116.703 MB/s        117.322 MB/s            7.235 GB
                 out     3.427 MB/s          5.225 MB/s            2.303 GB

           igb2  in    116.626 MB/s        117.301 MB/s            8.248 GB
                 out     4.789 MB/s         12.069 MB/s            3.331 GB

           igb1  in    116.845 MB/s        117.138 MB/s            6.406 GB
                 out     4.222 MB/s          6.439 MB/s          267.546 MB

           igb0  in    116.595 MB/s        117.298 MB/s            6.045 GB
                 out     2.984 MB/s          7.678 MB/s          221.413 MB


(High Load Average is because of simultaneously running disk IO test on the machine).

And the same in the other direction :

                    /0   /1   /2   /3   /4   /5   /6   /7   /8   /9   /10
     Load Average   |||||||||||||||||||||||||||||||||||

      Interface           Traffic               Peak                Total
          lagg0  in     14.427 MB/s         14.939 MB/s          155.813 GB
                 out   458.935 MB/s        459.789 MB/s           28.429 GB

            lo0  in      0.000 KB/s          0.000 KB/s            2.118 MB
                 out     0.000 KB/s          0.000 KB/s            2.118 MB

           igb3  in      2.797 MB/s          3.540 MB/s           39.869 GB
                 out   117.452 MB/s        121.691 MB/s            8.612 GB

           igb2  in      3.641 MB/s          5.412 MB/s           40.939 GB
                 out   116.963 MB/s        127.053 MB/s           11.185 GB

           igb1  in      4.202 MB/s          5.301 MB/s           39.097 GB
                 out   116.286 MB/s        117.230 MB/s            5.356 GB

           igb0  in      3.818 MB/s          4.713 MB/s           38.755 GB
                 out   116.315 MB/s        117.053 MB/s            6.142 GB


Regards,
Nikolay