Re: About the statistics

Hi,

 

I do not think there is an easy way to do this without modifying madwifi.

The atheros chips have some profile count registers that do exactly what you want - basically the number of clock cycles that the channel is busy for, etc.

I think that ath5k may expose these registers for easy access. Alternatively you could modify madwifi - have a search on the following: 

#define                AR_RCCNT          0x80f4   /* Profile count, receive clear */

#define                AR_CCCNT          0x80f8   /* Profile count, cycle counter */

 

Also, if you goggle these you should find the relevant discussions on the ath5k lists.

 

Hope this is of some help...

Brett

 

From: Érico Porto [mailto:[email protected]] 
Sent: Monday, 25 July 2011 12:10 PM
To: [email protected]
Subject: Re: [Madwifi-users] About the statistics

 

I believe that if I could understand how the Automate Channel Selection gets it's statistics, I would be able to know if mu channel is iddle or not, and also measure that amount of time, any help or documentation on that?

Érico V. Porto



On Fri, Jul 8, 2011 at 1:31 PM, Érico Porto <[email protected]> wrote:

Any help on how to use the NL80211_CMD_GET_SURVEY would be helpful! Think this will get me the data I am looking for. 


Érico V. Porto





On Thu, Jul 7, 2011 at 10:40 AM, Érico Porto <[email protected]> wrote:

Hello,

 

I want to look at my channel from my mac for an amount of time X and measure the idle time Y, so I can use the ratio Y/X to do some maths... Do you guys know an easy way of doing this in a madwifi router? I have full ssh access.

 

I tried looking at the /sys/bus/pci/drivers/ath_pci/0000:00:11.0/net:ath0/statistics , but even though I was seeing other networks at the same channel I was - with iwlist ath0 scan - I was at 0 in all rx statistics... Perhaps I need to make the interface transparent in some way.

 

thanks

 

Érico V. Porto

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