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List:       openbsd-misc
Subject:    Re: Tuning for pppoe over fibre 30M/1M link
From:       "Bentley, Dain" <DBentley () nas ! edu>
Date:       2012-05-31 21:28:53
Message-ID: C3183765C919684B9B2B5F1466119B2487045331 () ENA3000 ! nrc ! na ! int
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You'll find the atom performance is good. I have an atom 330 with 2 gigs of
RAM and dual on board NICs with another PCI NIC and it runs great. I also have
openvpn in bridge mode and squid running and no hiccups ar all.

Regards,
Dain Bentley

-----Original Message-----
From: David Diggles [david@elven.com.au]
Received: Thursday, 31 May 2012, 4:51pm
To: misc@openbsd.org [misc@openbsd.org]
Subject: Re: Tuning for pppoe over fibre 30M/1M link

FYI I have now run the same pppoe(4) download test on core2duo with OpenBSD
5.1,
on em0 interface.  It beats the Mac.

Mac G5 dual core 2GHz
3MB/s
Intel core2duo 3GHz OpenBSD i386
3.44MB/s

I have found on the Geode 300MHz, cleaning up the pf.conf, removing
modulate state, and no-df from scrub improves the throughput to:
1.8MB/s.

I ordered an Atom with 3 Intel NICs, just arrived!

Looking forward to testing it out.

The test I am doing is

ftp -o /dev/null http://mirror.internode.on.net/pub/OpenBSD/5.1/src.tar.gz

Internode is my ISP.

On Mon, May 28, 2012 at 05:07:01PM +0200, Andre Keller wrote:
> Am 28.05.2012 15:26, schrieb David Diggles:
> > Maybe I should try some of the kernel tuning suggested on calomel.
>
> I would not even visit that site... It's mostly a waste of time as most
> of the tunings are not up-to-date or just plain wrong. OpenBSD ships
> with pretty sane defaults that normally do not need any tweaking unless
> you run some unorthodox configuration. If you need to tweak something
> look into the faq and the sysctl(3) man page and not to calomel.org
>
>
> Could you please be a bit more specific about your setup?
>
> Are you using pppoe(4) or pppoe(8)?
>
> Do you see maxed out mbufs (netstat -m), a very high interrupt load (top
> / vmstat -i), ifq drops (sysctl net.inet.ip.ifq.drops), interface errors
> (netstat -i)?
>
> I'm running pppoe(4) on a lot of Geode 500MHz powered boxes and have no
> problem getting 30Mbit/s throughput of unencrypted traffic...
>
>
>
> g
> Andri

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