netdev - Re: ipsec impact on performance

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Message-ID: <20151201190127.GG21252@oracle.com>
Date:	Tue, 1 Dec 2015 14:01:27 -0500
From:	Sowmini Varadhan <sowmini.varadhan@...cle.com>
To:	Rick Jones <rick.jones2@....com>
Cc:	netdev@...r.kernel.org, linux-crypto@...r.kernel.org
Subject: Re: ipsec impact on performance

On (12/01/15 10:50), Rick Jones wrote:
> 
> Something of a longshot, but are you sure you are still getting
> effective CKO/GRO on the receiver?

Good question. With ipsec, GRO (like GSO) gets implicitly disabled.

But when I explictly disable GRO on receiver, leaving only GSO
on sender, I can still get about 6 Gbps for clear traffic.

Thus if I could get closer to 6 Gbps for my patch, I'd at least
know that it was just GRO that was missing.. but I'm only getting 
3 Gbps, which makes me think I missed something else on the sender
itself.

--Sowmini

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