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From: Chas Williams <3chas3@gmail.com>
Date: Thu, 5 Oct 2017 10:15:09 -0400
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To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev@dpdk.org, "John W. Linville" <linville@tuxdriver.com>, 
 "Charles (Chas) Williams" <ciwillia@brocade.com>, Chas Williams <chas3@att.com>
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Subject: Re: [dpdk-dev] [PATCH v2] net/af_packet: make bypass configurable
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On Wed, Sep 20, 2017 at 9:21 AM, Ferruh Yigit <ferruh.yigit@intel.com>
wrote:

> On 9/19/2017 10:45 PM, Chas Williams wrote:
> > From: "Charles (Chas) Williams" <ciwillia@brocade.com>
> >
> > In certain situations, low speed interfaces, it may be desirable to
> > have the flow control provided by the kernel queueing disciplines.
>
> Out of curiosity, do you have any compression of performance numbers
> with and without qdisc?
>

I had some time to test this.  I didn't see any loss in performance but the
interfaces
I am using only go about 200-300Mbps.  it likely makes a difference if you
can go
much much faster.