svn commit: r240742 - head/sys/net

[Gleb Smirnoff]

On Fri, Oct 05, 2012 at 11:02:14AM +0300, Nikolay Denev wrote:
N> > On Fri, Oct 05, 2012 at 09:34:07AM +0300, Nikolay Denev wrote:
N> > N> > Date: Thu Sep 20 10:05:10 2012
N> > N> > New Revision: 240742
N> > N> > URL: http://svn.freebsd.org/changeset/base/240742
N> > N> > 
N> > N> > Log:
N> > N> >  Convert lagg(4) to use if_transmit instead of if_start.
N> > N> > 
N> > N> >  In collaboration with:	thompsa, sbruno, fabient
N> > N> > 
N> > N> > Modified:
N> > N> >  head/sys/net/if_lagg.c
N> > ...
N> > N> Are there any plans to MFC this change and the one for if_bridge?
N> > N> This one applies cleanly on RELENG_9 and I will have the opportunity to test it later today.
N> > 
N> > Sure we can, if you test it. Thanks!
N> > 
N> > -- 
N> > Totus tuus, Glebius.
N> 
N> Patch applied and module reloaded.
N> 
N> I'm testing with 16 iperf instances from a RELENG_8 machine connected to a 10G port on
N> Extreme Networks switch with ix(4) interface, and on the other side is the machine with if_lagg,
N> with Intel quad igb(4) interface.
N> 
N>                     /0   /1   /2   /3   /4   /5   /6   /7   /8   /9   /10
N>      Load Average   |||||||||||||||||||||||||||||||||||||||
N> 
N>       Interface           Traffic               Peak                Total
N>           lagg0  in    464.759 MB/s        465.483 MB/s           25.686 GB
N>                  out    14.900 MB/s         22.543 MB/s            3.845 GB
N> 
N>             lo0  in      0.000 KB/s          0.000 KB/s            2.118 MB
N>                  out     0.000 KB/s          0.000 KB/s            2.118 MB
N> 
N>            igb3  in    116.703 MB/s        117.322 MB/s            7.235 GB
N>                  out     3.427 MB/s          5.225 MB/s            2.303 GB
N> 
N>            igb2  in    116.626 MB/s        117.301 MB/s            8.248 GB
N>                  out     4.789 MB/s         12.069 MB/s            3.331 GB
N> 
N>            igb1  in    116.845 MB/s        117.138 MB/s            6.406 GB
N>                  out     4.222 MB/s          6.439 MB/s          267.546 MB
N> 
N>            igb0  in    116.595 MB/s        117.298 MB/s            6.045 GB
N>                  out     2.984 MB/s          7.678 MB/s          221.413 MB
N> 
N> 
N> (High Load Average is because of simultaneously running disk IO test on the machine).
N> 
N> And the same in the other direction :
N> 
N>                     /0   /1   /2   /3   /4   /5   /6   /7   /8   /9   /10
N>      Load Average   |||||||||||||||||||||||||||||||||||
N> 
N>       Interface           Traffic               Peak                Total
N>           lagg0  in     14.427 MB/s         14.939 MB/s          155.813 GB
N>                  out   458.935 MB/s        459.789 MB/s           28.429 GB
N> 
N>             lo0  in      0.000 KB/s          0.000 KB/s            2.118 MB
N>                  out     0.000 KB/s          0.000 KB/s            2.118 MB
N> 
N>            igb3  in      2.797 MB/s          3.540 MB/s           39.869 GB
N>                  out   117.452 MB/s        121.691 MB/s            8.612 GB
N> 
N>            igb2  in      3.641 MB/s          5.412 MB/s           40.939 GB
N>                  out   116.963 MB/s        127.053 MB/s           11.185 GB
N> 
N>            igb1  in      4.202 MB/s          5.301 MB/s           39.097 GB
N>                  out   116.286 MB/s        117.230 MB/s            5.356 GB
N> 
N>            igb0  in      3.818 MB/s          4.713 MB/s           38.755 GB
N>                  out   116.315 MB/s        117.053 MB/s            6.142 GB

A cool test environment you do have :) Have you got results numbers prior to
applying the patch?

-- 
Totus tuus, Glebius.