On Tue, 17 Jan 2006 15:13:54 -0600 "Aaron M. Hirsch" <aaronh@xxxxxxxxxx> wrote: > On Tuesday 17 January 2006 14:52, Zane C. B. wrote: > > On Wed, 18 Jan 2006 04:44:55 +0800 > > > > John Summerfied <debian@xxxxxxxxxxxxxxxxxxxxxx> 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. Forcing the onboard interface to any thing actually caused problems. Leaving it set to autonegotiate worked fine. Neither were coming up in half-duplex. Found what was cuasing the problems was a change in the BIOS.
