netdev - Re: ipsec impact on performance

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Date:	Thu, 3 Dec 2015 06:38:20 -0500
From:	Sowmini Varadhan <sowmini.varadhan@...cle.com>
To:	Steffen Klassert <steffen.klassert@...unet.com>
Cc:	netdev@...r.kernel.org, linux-crypto@...r.kernel.org
Subject: Re: ipsec impact on performance

On (12/03/15 09:45), Steffen Klassert wrote:
> pcrypt(echainiv(authenc(hmac(sha1-ssse3),cbc-aes-aesni)))
> 
> Result:
> 
> iperf -c 10.0.0.12 -t 60
> ------------------------------------------------------------
> Client connecting to 10.0.0.12, TCP port 5001
> TCP window size: 45.0 KByte (default)
> ------------------------------------------------------------
> [  3] local 192.168.0.12 port 39380 connected with 10.0.0.12 port 5001
> [ ID] Interval       Transfer     Bandwidth
> [  3]  0.0-60.0 sec  32.8 GBytes  4.70 Gbits/sec
> 
> I provide more informatios as soon as the code is available.

that's pretty good compared to the baseline. 
I'd like to try out our patches, when they are ready.

I think you may get some more improvement if you manually pin the irq 
and iperf to specific cpus (at least that was my observation for transp 
mode) 

--Sowmini
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