[Click] Performance questions

[Roman Chertov]

André Campos wrote:
> Thanks Robert
>    
>   I´m using cheap devices like ENL832-TX-RENT (10/100Mbps) .. Where can i found a list of devices supported by Click? Down here is hard to find good hardware but I could try..

Intel Pro cards are what you need.  Basically something that is 
supported by the e1000 driver.  You can look at the driver code to see 
the exact chipsets that are supported.

Roman

>    
>   Anyway
>    
>   Thanks...
>    
>   André Campos
>   Brazil
>    
>   >>>>>>>>>>>>>>>>>>>
>    
>   Andr?,
> 
> It sounds like the reason for the slowness is the cost of interrupts.
> You should use PollDevice instead of FromDevice if you can. Click
> only has polling support for certain kinds of devices (e.g.
> Intel e1000).
> 
> What kind of ethernet card are you using?
> 
> Robert
> 
> 
>>Date: Fri, 10 Feb 2006 11:57:51 -0300 (ART)
>>From: =?iso-8859-1?q?Andr=E9=20Campos?= <pildas_pildas at yahoo.com.br>
>>To: click at pdos.csail.mit.edu
>>Subject: [Click] Performance questions
>>
>>I'm running a simple router (like fake-ip-router) using version 1.4.3 
> 
> in linuxmodule on a P IV 866 MHz. My NICs don't have DMA and I'm having 
> performance problems I think because of that. Running the router with 
> InfiniteSource and DIscard in the place of From & ToDevice I more then 
> 400kpps. In the other hand, when I use From & ToDevice I get only about 
> 75kpps. 
> 
>> 
>> I think the NIC's are taking too much of processor time because of 
> 
> the lack of DMA. Does it procede or it's just me thinking wrong? I'm no 
> hardware specialist so this is just a wild guess. 
> 
>> 
>> But as the only change is the insertion of the NIC's in the process 
> 
> I have to think it's a problem with them.
> 
>> 
>> Any help at all is welcomed
>> 
>> 
>> André Campos
>> Brazil
>> 
>>  
>>---------------------------------
>> Yahoo! Acesso Grátis 
>>Internet rápida e grátis. Instale o discador agora!
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> 
> 
> 
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