[Click] Lost cost microwave with click

nguenga valery ngval2003 at yahoo.fr
Wed Jan 18 13:21:28 EST 2012


Hi,

See a "low cost microwave Full Duplex system based 
on WiFi cards for transmission over long distance" 
built with click on this link: 

http://ieeexplore.ieee.org/Xplore/login.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F5740523%2F5745722%2F05746050.pdf%3Farnumber%3D5746050&authDecision=-203 


________________________________
 De : Eddie Kohler <ekohler at gmail.com>
À : rchertov <rchertov at cs.ucsb.edu> 
Cc : click at pdos.csail.mit.edu 
Envoyé le : Mercredi 18 janvier 2012 16h02
Objet : Re: [Click] 10GE Click performance
 
Well, shoot. This performance degradation is unfortunate.

There are two questions:
1. Why is performance low (~300Kpps or less)?
2. Why has performance gotten worse (300->200)?

Let's attack #2 first.

Has a non-Device configuration, such as InfiniteSource->Idle, slowed down?

Eddie


On 1/17/12 8:13 PM, rchertov wrote:
> I finally got my hands on some 10GE equipment and started to play
> around with Click.  So I noticed the following.  On 2.6.24.7 patched
> kernel using 3.7.17 ixgbe driver, I get around 200K pps when running a
> node as a bridge (click pulled from git today).  However, when on
> exactly the same node I run the exactly same test but I use
> click-1.7.0rc1, then I can easily achieve 300K pps.  I have also tried
> 2.6.35.14-106.fc14.i686 using the latest Click and I still got around
> 200K pps.
>
>
> I am curious of people's experiences when running Click on 10GE
> equipment.  Has anybody got the RouteBricks MQ code running?  Everything
> compiled for me, but I get pretty strange packet forwarding performance,
> where the data is either delayed by quite a bit or it is just corrupted.
>
> My fancy one way bridge config
>
> fd :: FromDevice(eth2, PROMISC true, BURST 32)
>      ->  ctr1 :: AverageCounter
>      ->  q :: Queue(4096)
>      ->  ctr2 :: AverageCounter
>      ->  ToDevice(eth3, BURST 64);
>
> Roman
>
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> click mailing list
> click at amsterdam.lcs.mit.edu
> https://amsterdam.lcs.mit.edu/mailman/listinfo/click
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