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Re: 7d1:3c10 D-Link System DWA-160 Xtreme N Dual Band USB Adapter(rev.A) [Atheros AR9001U-(2)NG] Invalid misc and Tx excessive retries

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On Wednesday 06 April 2011 16:18:54 Kimmo Huoso wrote:
> And for third even the softmac numbers/statistics might be 
> bogus, im still having problems with the driver while trying to run 
> programs that are strict for smooth connection like online games.
ah, that's why you are so concerned about excessive tx retries & invalid
misc numbers. Well, one of the worst enemy of programs that rely on low latency,
time-critical connection is "bufferbloat". However, by design 11n aggregation
needs to do a fair amount of additional caching & reordering so it's not
really suited for rt data anyway... Given that you have already ruled out your
router/AP and your environment, etc.. as a culprit, the good news is that
someone has already thought about this [QoS + the fact that aggregation is
not enabled for AC_VO]. The bad news is that ar9170's QoS [note: I'm talking
about the device and not the driver] does not work every well unless 11n is
completely disabled [module parameter noht=1 does that].

Regards,
	Chr
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