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Date:      Wed, 18 Mar 2015 22:57:55 +0000
From:      Holger Kipp <Holger.Kipp@alogis.com>
To:        Matt Smith <fbsd@xtaz.co.uk>
Cc:        John-Mark Gurney <jmg@funkthat.com>, FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>
Subject:   Re: 35-40% performance drop releng9 vs releng10 openvpn
Message-ID:  <1002A954-F846-4B69-8326-5448B3BAB089@alogis.com>
In-Reply-To: <20150318224034.GG1271@xtaz.uk>
References:  <5506250A.2000506@sentex.net> <20150316132055.GQ32288@funkthat.com> <5509D6C6.4050204@sentex.net> <20150318211457.GL51048@funkthat.com> <5509FC19.2020201@sentex.net>,<20150318224034.GG1271@xtaz.uk>

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Dear all,

> On 18.03.2015, at 23:41, "Matt Smith" <fbsd@xtaz.co.uk> wrote:
>
>> On Mar 18 18:28, Mike Tancsa wrote:
>>> On 3/18/2015 5:14 PM, John-Mark Gurney wrote:
>>> As I've never used OpenVPN before and their docs don't go into saying
>>> what it's using.. Is OpenVPN a kernel or userland VPN?  Do they use
>>> IPSec in the kernel? or are they just using UDP or TCP for their
>>> connections?
>>
>> All in userland.  I use UDP for the transport, and it uses OpenSSL in th=
e base for the crypto.  In this case, AES-128-CBC.  There is no hardware as=
sist on the APU either to offload the AES.
>
> Isn't OpenSSL in the base on releng9 the 0.9.8 version whereas in releng1=
0 it's the 1.0.1 version? This could make a significant difference. I've he=
ard rumours before that the newer version is a lot slower but I've never ha=
d cause to believe it.

Quick search brought up

https://www.stunnel.org/pipermail/stunnel-users/2013-April/004176.html

so I'd second using same program versions and only change OS or vice versa =
(so we aren't comparing apples to minced meat ;-)

Best regards,
Holger


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