FreeBSD 7.0-RELEASE getting terrible throughput using sk0 adapter

David Polak me at davidpolak.com
Sun Aug 31 15:34:36 UTC 2008


I recently leased a godaddy.com dedicated server, and while they didn't
offer freebsd as an option,  I used the fine guide at
http://www.freebsd.org/doc/en/articles/remote-install/ to get freebsd
installed. I noticed that the installation was taking a long time with ftp
as the source media, but I had thought that maybe I just picked a bad
mirror.

 

After the install was complete, and I started to install some ports, I was
still seeing really slow download speeds. I then decided to see if something
was wrong with the system by downloading the same image from the same source
that I downloaded on linux in order to bootstrap freebsd and the speed
difference was appaling. It had downloaded at 10.29 MB/s. Once freebsd was
installed, It will only go at 60KB/s..

 

I have tried messing with the options mentioned here:

 

http://spatula.net/blog/2007/04/freebsd-network-performance-tuning.html

 

but that provided no results.

 

 

Here is some info about my setup:

dmesg and the output from sysctl net.inet are attached as files

 

 

fsserver# netstat -I sk0

Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs
Coll

sk0    1500 <Link#3>      00:30:1b:44:4d:4d    16318     0    13163     0
0

sk0    1500 72.167.50.0   ip-72-167-50-116.    15896     -    13161     -
-

 

fsserver# vmstat -i

interrupt                          total       rate

irq18: fwohci0+                        2          0

irq19: skc0 uhci1+                 51928         46

cpu0: timer                      2138741       1921

cpu1: timer                      2128730       1912

Total                            4319401       3880

 

%netstat -I sk0

Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs
Coll

sk0    1500 <Link#3>      00:30:1b:44:4d:4d    32321     0    25510     0
0

sk0    1500 72.167.50.0   ip-72-167-50-116.    30854     -    25508     -
-

 

any help is greatly appreciated, let me know if there is any more info that
I have forgotten to include that might be needed.

 

 

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