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 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?
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:-)
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?
On Wed, 18 Jan 2006 04:44:55 +0800 John Summerfied debian@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.
Am Di, den 17.01.2006 schrieb Zane C. B. um 21:52:
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.
Other similar PCs or identical ones? Other NIC models or any kind of differences regarding OS/distribution/release, hardware in general (motherboard)?
Btw. both NIC/chipset types you named are known to be not the best performers, just cheap and more or less robust.
Alexander
On Tue, 17 Jan 2006 22:00:13 +0100 Alexander Dalloz ad+lists@uni-x.org wrote:
Am Di, den 17.01.2006 schrieb Zane C. B. um 21:52:
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.
Other similar PCs or identical ones? Other NIC models or any kind of differences regarding OS/distribution/release, hardware in general (motherboard)?
All the same, except for the BIOS. Found that is what has changed. Fixed now.
Btw. both NIC/chipset types you named are known to be not the best performers, just cheap and more or less robust.
Yeah, but work for what we need though.
On Tuesday 17 January 2006 14:52, Zane C. B. wrote:
On Wed, 18 Jan 2006 04:44:55 +0800
John Summerfied debian@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.
On Tue, 17 Jan 2006 15:13:54 -0600 "Aaron M. Hirsch" aaronh@uptime.net wrote:
On Tuesday 17 January 2006 14:52, Zane C. B. wrote:
On Wed, 18 Jan 2006 04:44:55 +0800
John Summerfied debian@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.
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.