Gigabit Connection To Slow

radioflyer · n00b Joined: 01 Oct 2003 Posts: 5

Hi,

I have got a problem with my Gigabit Nic.
When I boot with generic kernel, everythings fine and the speed of
the connection is high enough when I transfer something via ftp, but
when I boot with my own compiled kernel, the speed is slower than
a 100 Mbit connection. The speed is about 2.1 MB and the linux system is extremly slow. I think there's something wrong with the kernel.

Can anybody help me?

thx in advance

peshwengi · n00b Joined: 01 Aug 2003 Posts: 66 Location: London, UK

Hi,

Are you sure you have the correct kernel driver enabled for your card? What card is it?

kres · Posted: Fri Oct 24, 2003 3:33 pm Post subject:

The type of card is going to be key.

The Broadcom 1G cards are so @!#!$ up that many hardware vendors are addressing the problem by shipping a new 1G PCI card instead of trying to address the issues with the imbedded cards.

It seems to be most often a driver issue. Some vendors have supplied patches to address the issue, or custom-coded drivers.

I have seen some of the same unhappiness from the Intel 1G cards as well, however, their latest round of propritary drivers seemed to take care of the issue in Linux.
_________________
Kres

radioflyer · n00b Joined: 01 Oct 2003 Posts: 5

I Have the Intel 1000 MT Gigabit Nic and the Kernel is gentoo-sources 2.4.20-r8, the generic kernel which everything is OK has the version gentoo-source-2.4.20-r7

ctford0 · Posted: Sat Oct 25, 2003 6:17 am Post subject:

have you tried the intel gigabit driver?

radioflyer · n00b Joined: 01 Oct 2003 Posts: 5

no I haven't, i'll try it if it works then better.
thanks

100%hound_dog · n00b Joined: 01 Oct 2003 Posts: 32

this is unrelated to your problem, but has to do with speed in general. I've read that if you use a gigabit nic on most older boards with 32bit pci slots the maximum thoroughput you could achieve is 133 Megabits per second. Not exactly a huge difference than a regular card.The same would be true if you used afancy-schmancy raid controller with 8 drives on that same pci slot. While the drives and controller may be able to handle a much higher thoroughput the limiting factor is in the pci slot. I'm not sure If the potential top speed is directly related to the bus speed but it sounds likely, as the board they were quoting probably had a 133 mghz bus. I'm no expert, so I could be mistaken