Hi,
I hve done a few test on my network an can achieve very high speeds.
Going from a server Intel onboard gigabit nic (PCI-e) with the CD
image first copied to another machine so that it is disk cache (RAM).
This removes the disk speed as a limiter. All of these are via a DLink
DGS-1024D. Downloading over FTP to /dev/null.
To a Marvell Yukon2 onboard (PCI-e) results in 110-116MBytes/s
To a Marvell Yukon PCI card results in 70-75MBytes/s
The Marvell Yukon PCI card that I use is made by Belkin, they only
make one gigabit one. PCI id 11ab:5005 iirc
I have found that I get 40-50 MBytes/s real world using FTP over a PCI
Marvell Yukon card (skge driver).
After tweaking a few TCP settings I have got the transfer rate up a
further 10MBytes/s
I suggest you stay away from the Realtek 8169 based cards, like the
edimax. I have had 5 of these at one point they are all dead. I have
had the driver/load cause the main IC to overheat. I measured 86oC
with a thermocouple on a datalogger. If you use a BSD do NOT use one
of these. They are often unreliable. They are better behaved under
Linux but are not good enough for me. As you can often get the Belkin
ones off trademe for around $15 + pnp I just avoid them.
I highly recommend the Belkin card.
From Kim
On 8/11/2007, at 1:00 PM, Criggie wrote:
Roger Searle wrote:
Hi, I'm looking to put gigabit network cards in a couple of suse 10.2
boxes (among others) and seeking list experience on what models/
chipsets
are good/bad. For example DSE have the XH8266 supposedly supporting
Anything that works is good. Intel and 3com cards are rated up
there and
tend to perform better than the cheaper NICs.
Be aware that a PCI bus isn't going to perform at 10x the speed of 100
Mbit. Here's some examples
GigE PCI card to GigE on-board PCI card
mythbox.criggie.dyndns.org 239.000Mbps 0.025
GigE PCI card to GigE PCI card
sucrose.criggie.dyndns.org 196.103Mbps 0.029
GigE PCI card to 100 Mbit PCI card
fw.criggie.dyndns.org 75.350Mbps 0.235
GigE PCI card to 100 Mbit PCI card through two switches
thionite.criggie.dyndns.org 71.144Mbps 0.063
GigE PCI card to 100 Mbit Access Point through two switches
ap0.criggie.dyndns.org 52.927Mbps 0.145
From a 100 Mbit card back to a gigE NIC
All readings topped out at around 72 Mbit.
If you want to GO FAST then you're needing something better than PCI
lspci shows this
06:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721
Gigabit Ethernet PCI Express (rev 21)
jdj 312.163Mbps 0.069
png 424.889Mbps 0.082
Even then, its not "gigabits"
--
Criggie
http://criggie.dyndns.org/
