Major network throughput decrease in xircom_cb as opposed to xircom_tulip_cb

Dominik Brodowski linux at
Wed Apr 20 08:04:54 EDT 2005


On Mon, Apr 18, 2005 at 09:39:35AM -0700, Chris Tracy wrote:
> Hello,
> 	I have an old Inspiron 5000 that I just updated from FC1 (2.4.x)  
> to FC3 (2.6.11).  The system has no built-in ethernet, so I've got a
> Xircom Cardbus Ethernet PC Card in it.  In 2.4.27, I could download from
> another local system (via wget on the console) at around 8-9MB/s
> (64-72Mbit).  When using the xircom_cb driver in 2.6.11-1.14_FC3 (and
> vanilla that throughput dropped significantly, down to between
> 2-3MB/s (16-24Mbit).  Out of curiousity, I installed vanilla and
> configured the system to use the older xircom_tulip_cb module.  With it,
> on, I'm back to my old speeds.
> 	Is this a known issue?  I guess it's not a big deal since the 
> older driver works as I'd expect, but I figured someone would want to know 
> about the regression.  (And I assume the older driver will go away 
> eventually)
> 	If you'd like any more info from me, please let me know.

I've forwarded this report to the author of the xircom_cb driver, Arjan van
de Ven. This list focuses on the PCMCIA core, not on specific drivers.


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