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Re: Poor RT2880 performance

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On Mon, Feb 13, 2012 at 08:18:19PM +0100, Florian Fainelli wrote:
> Le 02/13/12 14:45, Helmut Schaa a écrit :
> >On Mon, Feb 13, 2012 at 2:23 PM, Florian Fainelli<florian@xxxxxxxxxxx>  wrote:
> >>I am playing with a RT2880-F based AP, with a N connected station, in a
> >>residential environment.
> >Mind to provide the RF and RT chipset identifications? rt2x00 should print them
> >out during module load (at least when compiled with debugging options).
> 
> Sure, here are the HW infos of the AP:
> Ralink RT2880   id:1 rev:1 running at 266.66 MHz
> phy0 -> rt2x00_set_chip: Info - Chipset detected - rt: 2860, rf:
> 0001, rev: 0101.

Did you try to revert commit (if you use kernel, which include it) ?

commit f0425beda4d404a6e751439b562100b902ba9c98
Author: Felix Fietkau <nbd@xxxxxxxxxxx>
Date:   Sun Aug 28 21:11:01 2011 +0200

    mac80211: retry sending failed BAR frames later instead of tearing

It was already identified that it couse performace issues on rt2860
based APs.

Stanislaw

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