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Re: GigE recommendations

To: misc_(_at_)_openbsd_(_dot_)_org
Subject: Re: GigE recommendations
From: naddy_(_at_)_mips_(_dot_)_inka_(_dot_)_de (Christian Weisgerber)
Date: Mon, 8 Nov 2004 15:41:39 +0000 (UTC)
Newsgroups: list.openbsd.misc

Breen Ouellette <the_(_dot_)_man_(_at_)_breeno_(_dot_)_net> wrote:

> 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 see really bad NFS read performance with em(4) on sparc64 (Blade 100).
Maximum throughput is about 400 or 500kB/s for bulk reads.  I suspect a
subtle driver problem.

-- 
Christian "naddy" Weisgerber                          naddy_(_at_)_mips_(_dot_)_inka_(_dot_)_de

References:
- Re: GigE recommendations
  - From: Breen Ouellette

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