Re: GigE recommendations

[Michael Shalayeff <mickey_(_at_)_lucifier_(_dot_)_net>]

Making, drinking tea and reading an opus magnum from Henning Brauer:
> * Breen Ouellette <the_(_dot_)_man_(_at_)_breeno_(_dot_)_net> [2004-11-06 21:50]:
> > Theo de Raadt wrote:
> > >The OpenBSD development networks (ie. my basement) are are mostly
> > >switched gigabit.  i386, amd64, alpha, macppc, sparc64, and perhaps
> > >even something else, are gigabit.  Using sk, em, bge, gem, and I dunno
> > >what else.  Other developers in the group are using the other gigabit
> > >cards in their networks.
> > >Of course it works.  It's not non-free-firmware locked Windows-only
> > >wireless crap.
> > I realize that they don't have any firmware problems. Let me clarify my 
> > question.
> > With the recent posts about NFS problems being related to particular 
> > NICs, I want to know if anyone has experience with the Intel GigE NICs 
> > behaving badly under any particular applications. I am particularily 
> > interested in the Intel PRO/1000MT Desktop Adapter (PWLA8390MT) and the 
> > Intel PRO/1000MT Dual Port Server Adapter (PWLA8492MT). These use (em), 
> > btw. They seem like good cards, I just want to be sure before I buy 20 
> > and 2 of them, respectively.
> 
> I haven't seen the specific em(4) model making a difference - I didn't 
> really bench, tho.

82542/543/544 chips lack some interrupts coalescing features
although on defaults it shall not differ much from aother
chips unless some alyte tweaking is done in the sources (:

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)