ixl 40G bad performance?

[Pieper, Jeffrey E]

-----Original Message-----
From: Eggert, Lars [mailto:lars at netapp.com] 
Sent: Monday, October 26, 2015 8:08 AM
To: Pieper, Jeffrey E <jeffrey.e.pieper at intel.com>
Cc: Kevin Oberman <rkoberman at gmail.com>; freebsd-net at freebsd.org; Daniel Engberg <daniel.engberg.lists at pyret.net>
Subject: Re: ixl 40G bad performance?

On 2015-10-26, at 15:38, Pieper, Jeffrey E <jeffrey.e.pieper at intel.com> wrote:
> With the latest ixl component from: https://downloadcenter.intel.com/download/25160/Network-Adapter-Driver-for-PCI-E-40-Gigabit-Network-Connections-under-FreeBSD-
> 
> running on 10.2 amd64, I easily get 9.6 Gb/s with one netperf stream, either b2b or through a switch. This is with no driver/kernel tuning. Running 4 streams easily gets me 36 GB/s.
>
>Thanks, will test!
>
>If the newer driver makes a difference, any chance we'll see it in -HEAD soon?
>
>Lars

As a caveat, this was using default netperf message sizes. 

Jeff