Recommendation for 1000BASE-SX card?

Danial Thom danial_thom at yahoo.com
Thu Jun 1 06:41:28 PDT 2006



--- Heinrich Rebehn <rebehn at ant.uni-bremen.de>
wrote:

> Danial Thom wrote:
> >  The intel cards that use the EM driver are
> the
> > best performing cards in FreeBSD that we've
> > tested. We've test cards made by the same
> company
> > that use the broadcom controllers and the
> intel
> > cards are substantially better (ie use less
> CPU
> > passing the same amount of traffic). 
> > 
> > Be careful using on-board controllers.
> Usually
> > vendors, for some reason, don't wire them to
> the
> > pci-x bus. Most supermicro boards wire the em
> > controllers to the 32bit/33mhz bus and the
> tyan
> > and supermicro opteron boards we've tested
> wire
> > the broadcoms to a shared 1x PCI-E, both of
> which
> > will not only give you poor performance, but
> are
> > not capable of running full gigabit rates.
> > 
> > DT
> > 
> 

To clarify, I'd recommend trying an intel PCI-X
copper card with the convertor. The bge driver is
garbage and is likely at least part of your
problem with the convertor. 

DT

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