On Tuesday 17 January 2006 14:52, Zane C. B. wrote:
On Wed, 18 Jan 2006 04:44:55 +0800
John Summerfied <debian(a)herakles.homelinux.org> wrote:
> Zane C. B. wrote:
> > I have two identical boxes. Each have a built in VIA Rhine II and a
pci
> > Realtek 8139. When doing bandwidth tests between them, I am just
getting
> > about 84/5Mbps on the VIA and mid 70's on the Realteks. I am testing
>
> Presumably, you mean Mbits/sec:-)
Yeah, that is why I used a lower case b instead of a upper case b.
> > using udp packets with iperf v. 1.7.0.
> >
> > We have several other of these boxes that get in the mid 90's.
> >
> > Any suggestions on what to check?
>
> What do you see as your problem?
The fact that we have other similar boxes deployed, but am getting far
better performance on them, than these to. Wondering if any one had
any suggestions on things to check.
Okay...have you checked for any potential duplex problems? I would almost
guarantee that, unless you've forced it, the NICs are coming up at
half-duplex. Use mii-tool or ethtool.