[Users] Performance issue with FDR & Ubuntu

[Rupert Dance]

We get 40+ when using FDR cards and PCIe Gen3 and ib_write_bw

 

Rupert

 

From: users-bounces at lists.openfabrics.org [mailto:users-bounces at lists.openfabrics.org] On Behalf Of Coulter, Susan K
Sent: Monday, January 11, 2016 5:11 PM
To: German Anders
Cc: users at lists.openfabrics.org
Subject: Re: [Users] Performance issue with FDR & Ubuntu

 

 

On Dec 22, 2015, at 11:55 AM, German Anders <ganders at despegar.com> wrote:

 

Is there anyone around that is using IB FDR and running an iperf between two hosts on the same net, are getting more than 24Gbits/sec?

 

I just ran some quick iperf tests between 2 FDR HCAs - I get the same ~24Gbs.

 

The constraint is often the PCI bus, not IPoIB itself.

 

 

==================================================

Susan Coulter

HPC Network Technical Lead

(505) 667-8425

“Once in a while you get shown the light

    In the strangest of places if you look at it right”  Robert Hunter

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