netperf BW tests with hostap and wlan-ng on WL200

Laszlo Halasz Hungary hostap
Thu Feb 27 02:49:45 PST 2003


Hi,

/offtopic
Who is the card's manufacturer (WL200) ? some homepage ?
I'm searching for good card(prism2) for an linux access point with HostAP.

thx
Hal

/ontopic

JuanJo Ciarlante ?rta:

>On Wed, Feb 26, 2003 at 11:45:31AM -0300, JuanJo Ciarlante wrote:
>[standard disclaimer about not replying to self ... blablah]
>
>  
>
>>>[...]
>>>It was supposed to not be needed anymore with the current scheme of
>>>using BAP (only one BAP is used).
>>>      
>>>
>>I do confirm that bringing back cli/sti (actually a local 
>>spin_lock_irqsave/spin_unlock_irqrestore pair) had made resets  dissappear
>>during a TX stress test (netperf -l99 ...); although BW have increased, 
>>it's still lower than wlanng.
>>
>>    
>>
>>>If it is still needed, there is
>>>something wrong with higher level locking. And yes, there probably is..
>>>      
>>>
>>high level or low level ?
>>It seems to me that IRQ handling is "breaking" wait_offset() tight loop under
>>setup_bap() ...
>>
>>    
>>
>>>I have this in my todo list for testing, but I have been quite occupied
>>>with other projects lately so this has been delayed.
>>>      
>>>
>>I can do further debugging/testing, this low powered CPU + Prism2 seems to
>>be a good combo to trigger these behaviour, just let me know.
>>    
>>
>
>Even further "nice" testbeds ... we have (http://www.mendoza-wireless.net.ar/) 
>   #1  low end CPUs (P166, P230)
>   #2  WL200 (pci/pcmcia) Prism2
>   #3  several km (from ~5km to ~12km), low signal, noisy links
>
>Tonight (back home) I'll test hostap without own retry processing (a
>major difference I see with wlanng), something that #1+#3 could make relevant.
>
>BTW ... Is possible to build&use hostap without setting up for
>    HFA384X_TX_CTRL_TX_EX events (by just commenting out that bit) ?
>
>Regards
>  
>





More information about the Hostap mailing list