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<p class=MsoNormal><span lang=EN-US>Hi Freifunker,<br>
<br>
We are right befor of having a proper Freifunk based 5GHz turbo-a mesh<br>
firmware in place. The tide about madwifi under Freifunk has turned in the<br>
last weeks and adhoc meshes running in 5GHz are possible. Thanks to all<br>
programmers involved in this.<br>
The big "BUT" comes up with the network performance of our firmware.
Applied<br>
to the Atheros turbo-a in adhoc mode it leads currently to a working<br>
wireless part, which can handle around 60 Bit/sek of troughput, but this<br>
performance is not achiveable on our most deployed embedded hardware like<br>
the ASUS wl-500gP. On such units, the ksoftirqd sofware irq handler takes to<br>
much cpu power to achive this possible throughput, even while transfering<br>
packets from one wired interface to antoher (like from WAN to LAN). Other<br>
router formwares like Tomato or DD-WRT are able to handle this high<br>
throughput.<br>
<br>
Long story short: Looking at this issue I figured out, that the<br>
ksoftirqd_CPU0 process in our firmware takes the most CPU power. While<br>
searching for possible troubleshooting steps, I found a possible reason,<br>
maybe. Have a look at<br>
</span><a href="http://wl700g.homelinux.net/drupal/?q=comment/reply/110"><span
lang=EN-US>http://wl700g.homelinux.net/drupal/?q=comment/reply/110</span></a><span
lang=EN-US> ... they experienced<br>
a<br>
GPIO INTERRUPT STORM comming from a wrong configured interrrupt source.<br>
<br>
Could that be the same problem on our side ? Could somebody imaging of what<br>
gpio source could trigger that hugh among of software interrupts ?<br>
<br>
Hopefully we solve this to be able of having a high speed Freifunk mesh ....<br>
<br>
<br>
</span>Bye4now from Bluse<br>
<br>
<o:p></o:p></p>
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