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From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: Benjamin Serebrin <serebrin-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Cc: Omer Peleg
	<omer-FrESSTt7Abv7r6psnUbsSmZHpeb/A1Y/@public.gmane.org>,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	Dan Tsafrir
	<dan-FrESSTt7Abv7r6psnUbsSmZHpeb/A1Y/@public.gmane.org>,
	Adam Morrison
	<mad-FrESSTt7Abv7r6psnUbsSmZHpeb/A1Y/@public.gmane.org>,
	David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Subject: Re: [PATCH 0/7] Intel IOMMU scalability improvements
Date: Tue, 5 Apr 2016 11:22:49 +0200	[thread overview]
Message-ID: <20160405092249.GE17838@8bytes.org> (raw)
In-Reply-To: <CAN+hb0Xt21CMmM7uE0rzjf5p9w-W+5y8at4v1J8+pYd8tamLpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On Tue, Mar 15, 2016 at 11:00:34AM -0700, Benjamin Serebrin via iommu wrote:
> There are nice.  Thanks very much for doing this work!
> 
> We have some preliminary results, looking at scaling to high core counts.  We
> tested the patches on a 2-socket high core count SNB-EP server with a Broadcomm
> NIC.  Our benchmark uses 200 threads of TCP_RR.  We see similar performance for
> IOMMU disabled as we do for IOMMU enabled with this patchset, which is good
> news.  We're working on getting a lab setup with Haswell servers so we can
> further test the scalability of the code.
> 
> We owe the scaling results and of course actual code reviews.

This sounds very promising. Could you guys rebase the patches to a
recent upstream kernel and repost together with your performance
results? I'd really like to see that merged.


	Joerg

  parent reply	other threads:[~2016-04-05  9:22 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-28 16:14 [PATCH 0/7] Intel IOMMU scalability improvements Adam Morrison
     [not found] ` <20151228161421.GA27829-FrESSTt7Abv7r6psnUbsSmZHpeb/A1Y/@public.gmane.org>
2016-01-04 17:35   ` Joerg Roedel
2016-03-15 18:00   ` Benjamin Serebrin via iommu
     [not found]     ` <CAN+hb0Xt21CMmM7uE0rzjf5p9w-W+5y8at4v1J8+pYd8tamLpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-04-05  9:22       ` Joerg Roedel [this message]
2016-03-15 18:09 ` Ben Serebrin via iommu

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