[ILUG] copy slow as hell ...

[Gavin McCullagh]

Hi,

On Sun, 06 Jan 2008, FRLinux wrote:

> On Jan 6, 2008 3:14 PM, Robert Sweetnam <linux at sweetnam.eu> wrote:
> 
> > It looks as if the network settings for the NAS box might need to be
> > tweaked a bit.

> [root at MyBookWorld ~]# ethtool eth0
> Settings for eth0:
>         Speed: 1000Mb/s
>         Duplex: Full
>         Port: Twisted Pair
>         Auto-negotiation: on

What card is it?  Could you give us the output of "ethtool -k eth0" and see
could you turn on tcp segmentation and checksum offload?  That might take
some load off the cpu, if that's the problem.

Would it be possible to compile/install something like iperf on it?  You
could run test TCP and UDP flows and see what speed the interfaces are
capable of going at for each protocol.

You might check the various sysctl values here, in case WD have turned some
of them off:

http://www.psc.edu/networking/projects/tcptune/#Linux

Gavin