netdev - Re: Blogpost evaluation this [PATCH v4 net-next RFC] net: Generic XDP

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Message-Id: <20170425.133103.1549209166033304482.davem@davemloft.net>
Date:   Tue, 25 Apr 2017 13:31:03 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     andy@...yhouse.net
Cc:     brouer@...hat.com, xdp-newbies@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: Blogpost evaluation this [PATCH v4 net-next RFC] net: Generic
 XDP

From: Andy Gospodarek <andy@...yhouse.net>
Date: Tue, 25 Apr 2017 13:25:49 -0400

> On Mon, Apr 24, 2017 at 06:26:43PM -0400, David Miller wrote:
>> Andy, how goes it? :)
> 
> Sorry for the delayed response.  I was AFK yesterday, but based on
> testing from Friday and what I wrapped up today all looks good to me.
> 
> On my system (i7-6700 CPU @ 3.40GHz) the reported and actual TX
> throughput for xdp_tx_iptunnel is 4.6Mpps for the optimized XDP.
> 
> For generic XDP the reported throughput of xdp_tx_iptunnel is 4.6Mpps
> but only ~880kpps actually on the wire.  It seems to me that can be
> fixed with a follow-up for offending drivers or the stack if deemed that
> there is a real error there.

Ok, I'll commit the latest version with tested-by tags for you, Jesper,
and David Ahern added.

Thanks everyone.