linux-kernel - Re: [ANNOUNCE] Linux hits 20 Gb/s stream to disk levels over Infiniband

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Date:	Sat, 31 Mar 2012 15:15:04 -0400
From:	David Dillow <dave@...dillows.org>
To:	Jeffrey Merkey <jeffmerkey@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [ANNOUNCE] Linux hits 20 Gb/s stream to disk levels over
 Infiniband

On Sat, 2012-03-31 at 11:28 -0600, Jeffrey Merkey wrote:
> Made it to 20 Gb/s network packet capture stream to disk performance
> levels over Infiniband fabrics on Linux.

I'm assuming that the interesting part is the 20 Gbits/s capture? And at
minimum packet sizes, I'd hope. Linux has been able to stream more than
5 GBytes/s (40 Gbits/s) to disk for several years now over SRP.

>  Will be trying this on 3.0
> after I work through the OFED issues (long list).  Post the results
> from 3.0.  These are from 2.6.XX series kernels.

You may find it easier to use a recent RedHat or SUSE with an upstream
kernel. I know that RHEL6 userland is compatible with the upstream
kernel's Infiniband, and OFED is moving its kernel work to a "backport
upstream" model for OFED 3.2.

> Linux f_cking ROCKS!!!

Indeed it does.

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