Development issues regarding the cerowrt test router project
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From: "Török Edwin" <edwin@etorok.net>
To: Dave Taht <dave.taht@gmail.com>
Cc: "cerowrt-devel@lists.bufferbloat.net"
	<cerowrt-devel@lists.bufferbloat.net>
Subject: Re: [Cerowrt-devel] cerowrt-3.10.32-9 released
Date: Tue, 18 Mar 2014 18:49:27 +0200	[thread overview]
Message-ID: <53287917.5020503@etorok.net> (raw)
In-Reply-To: <CAA93jw442My8sUH=GCS+=A2Yqi2mPEY4_eajJy+UwZkmKWszdA@mail.gmail.com>

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On 03/18/2014 05:35 PM, Dave Taht wrote:
> On Tue, Mar 18, 2014 at 11:22 AM, Török Edwin <edwin@etorok.net> wrote:
>> Should I also run a rrul46/rrul46compete test?
> 
> If you can test ipv6 too, that would be great.

Attached IPv6 results.

> 
> At 8ms of induced extra latency without SQM there doesn't seem to be
> much point in running it on your platform. It does look like you are tail
> dropping...
> 
> A thought would be to leave it
> off and try running your link at 100Mbit rather than gige.
> 
> # ethtool -s ge00 advertise 0x008

Well ge00 already runs at 100Mbit, because ISP plugged me into a 100Mbit port on the switch:
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Half 1000baseT/Full 
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s

They would plug me into a 1Gbit port only if I pay for 1Gbps connectivity, which is in fact only 7 EUR/month more, but its not available in my area yet :)

> 
> and see if fq_codel alone can break up bursts better.
> 
> I note that linux 3.14 TCP is now so highly debloated that it is really hard to
> compare the results we get with it with any TCP before it - the TSO offload
> fixes, tcp small queues, etc, have really shortened and made more accurate
> the control loops.
> 
> second note is that the wndr can only forward packets at about 330Mbit
> without firewall rules. Add in the firewall rules and you are looking at
> sub 120mbit forwarding performance.

Good to know, not much point in purchasing 1Gbit connectivity from my ISP unless I also replace my router.

> 
> I am jealous of your link. :)

Best regards,
--Edwin

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  reply	other threads:[~2014-03-18 16:49 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-16 19:58 Dave Taht
2014-03-16 21:27 ` Valdis.Kletnieks
2014-03-16 21:45   ` Dave Taht
2014-03-17  0:03     ` Toke Høiland-Jørgensen
2014-03-17  0:42     ` Valdis.Kletnieks
2014-03-17  0:54       ` Dave Taht
2014-03-17 12:20 ` Michael Richardson
2014-03-17 13:40   ` Dave Taht
2014-03-17 14:30     ` Toke Høiland-Jørgensen
2014-03-17 14:39       ` Toke Høiland-Jørgensen
2014-03-17 14:55       ` Dave Taht
2014-03-17 14:55     ` Michael Richardson
2014-03-17 15:18       ` Dave Taht
2014-03-18 10:00 ` Török Edwin
2014-03-18 12:12   ` Sebastian Moeller
2014-03-18 14:21     ` Dave Taht
2014-03-18 15:22       ` Török Edwin
2014-03-18 15:35         ` Dave Taht
2014-03-18 16:49           ` Török Edwin [this message]
2014-03-18 17:03             ` Dave Taht
2014-03-18 17:06           ` Valdis.Kletnieks

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