netdev - Re: [BUG] net: performance regression on ixgbe (Intel 82599EB 10-Gigabit NIC)

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Date:	Mon, 7 Dec 2015 12:28:37 +0100
From:	Otto Sabart <osabart@...hat.com>
To:	Alexander Duyck <alexander.duyck@...il.com>
Cc:	netdev@...r.kernel.org, Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jirka Hladky <jhladky@...hat.com>,
	Adam Okuliar <aokuliar@...hat.com>,
	Kamil Kolakowski <kkolakow@...hat.com>,
	"e1000-devel@...ts.sourceforge.net" 
	<e1000-devel@...ts.sourceforge.net>
Subject: Re: [BUG] net: performance regression on ixgbe (Intel 82599EB
 10-Gigabit NIC)

> Hi Ota,
> 
> It looks like there were a few changes that went through that could be
> causing the regression.  The most obvious one that jumps out at me is commit
> 72bfd32d2f84 ("ixgbe: disable LRO by default").  As such one thing you might
> try doing is turning on LRO support via ethtool -k to see if that is the
> issue you are seeing.
> 

Hi Alex,
enabling LRO resolved the problem.

Thank you!

Ota
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