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Re: [opensuse] Cómo para fijar interfaz de red overruns?

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Subject: Re: [opensuse] Cómo para fijar interfaz de red overruns?
From: Per Jessen <per@xxxxxxxxxxxx>
Date: Tue, 03 Apr 2012 08:18:07 +0200
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References: <jla23a$m5k$1@saturn.local.net> <1333311046.21362.56.camel@t43.lan0.a-domani.nl> <jlahar$n41$2@saturn.local.net> <1333352013.27048.25.camel@t43.lan0.a-domani.nl> <jlbp2m$q93$1@saturn.local.net> <jlcn15$sdp$1@saturn.local.net> <1333407875.27048.39.camel@t43.lan0.a-domani.nl>
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Hans *Witvliet escribió:

> En *Mon, 2012-04-02 en 19:18 +0200, Por *Jessen escribió:
> 
>> 
>> *Okay, haber justo ahora reemplazado el 3*c905*B con #uno 3*c905*C - todavía estoy
>> consiguiendo *overruns:
>> 
>> Solo *highspeed descargar fuente - 100/minuto.
>> Múltiple concurrente descarga - 600-700/minuto
>> 
>> probaré fuera de un *intel *e100 tarjeta más tarde, pero sospecho las tarjetas son
>> todo bien.
>> 
> 
> *Ok Por,  vuestra lógica parece sólida...
> 
> Así que aparece que vuestro (3*C905*b) el tablero no es *defect.
> Aun así, *i *presume no hay mucha diferencia entre el
> "-*B" y el "-*C" versión.

Uno es llamado "*Cyclone", el otro un "*Tornado".  Son manejados por
el mismo conductor. 

> Tan si mueves hacia un vendedor completamente diferente (medida diferente
> de FIFO interno quizás), como *Intel, todavía podrías ver una
> diferencia.

Sí, que es el paso próximo. Reemplacé el 3*c905*c con un *tlan anoche,
pero no podría conseguir para probarlo. 

> Pero lo #poder ser que vuestro *cpu no puede manejar aquella cantidad de IRQ?
> (Suposición salvaje, como 50*Mbps no es _que_ mucho ...)

Sí, que era también mi primer pensamiento, pero no hace mucho sentido. 
Hace cualquiera sabe cómo para determinar si que podría ser la razón?  Justo para
eliminar aquel sospechoso.


-- 
Por *Jessen, *Zürich (10.9°*C)

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Hans Witvliet wrote:

> On Mon, 2012-04-02 at 19:18 +0200, Per Jessen wrote:
> 
>> 
>> Okay, have just now replaced the 3c905B with a 3c905C - I'm still
>> getting overruns:
>> 
>> Single highspeed download source - 100/minute.
>> Multiple concurrent downloads - 600-700/minute
>> 
>> I'll try out an intel e100 card later, but I suspect the cards are
>> all fine.
>> 
> 
> Ok Per,  your logic seems solid...
> 
> So it appears that your (3C905b) board isn't defect.
> However, i presume there isn't much difference between the
> "-B" and the "-C" version.

One is called "Cyclone", the other one "Tornado".  They're handled by
the same driver. 

> So if you move towards a completely different vendor (different size
> of internal FIFO perhaps), like Intel, you still might see a
> difference.

Yes, that is the next step. I did replace the 3c905c with a tlan last
night, but I couldn't get to test it. 

> But could it be that your cpu can not handle that amount of IRQ's?
> (Wild guess, as 50Mbps isn't _that_ much ...)

Yes, that was also my first thought, but it doesn't make much sense. 
Does anyone know how to determine if that could be the reason?  Just to
eliminate that suspect.


-- 
Per Jessen, Zürich (10.9°C)

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