[Cialug] OT: Gigabit speeds (was Gigabit NICs)

[David Champion]

Here's a pretty good explaination of it...

http://www.karbosguide.com/hardware/module2c3.htm

Standard 33mhz, 32 bit PCI has a max bandwidth of 132MBps. This mentions 
that PCI-X (133mhz 64 bit) should have 1GBps bandwidth. That's quite a 
big difference.

Another thing to remember is that depending on how your chipset works 
and what devices you're using, you may be sharing the PCI bus with a lot 
of other devices, like sound, usb, firewire, video...

-dc

Nathan C. Smith wrote:
> I wonder if you could ever really approach a gigabit from any machine.
> Anybody have any concrete data?
> 
> We did some multicast imaging of desktop machines with gigabit adapters and
> hit over 100 mb/s (106 iirc) and I thought that was excellent.  The only way
> I could imagine going faster would be direct from memory but then there is
> the lousy desktop bus.
> 
> I seem to recall some gigabit adapters have their own Southbridge, or node
> on some motherboards.  What is the speed of a PCI or PCI/x bus like?
> 
> -Nate
> 
>> -----Original Message-----
>> From: Aaron Porter [mailto:atporter at gmail.com] 
>> Sent: Tuesday, November 14, 2006 12:18 PM
>> To: Central Iowa Linux Users Group
>> Subject: Re: [Cialug] Gigabit NICs
>>
>>
>> On 11/13/06, jcbailey at code0.net <jcbailey at code0.net> wrote:
>>> Other than that, the PRO/1000s sound great so far. We can 
>> get them for 
>>> $31 from CDWG so it isn't too bad of a deal.
>> Those look like the desktop adapters. Depending on what 
>> you're looking for, they might be a good fit but you won't be 
>> able to push a full gig/sec. No complaints about 
>> drivers/stability/compatability though. 
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