Le vendredi 11 décembre 2009 à 21:56 +0100, Benoit PAPILLAULT a écrit :

> In order to get more information on what happens in your situation, you
> need to use debugfs :
> 
> mount -t debugfs debugfs /sys/kernel/debug
> 
> Then, minstrel statistics should be available in :
> 
> /sys/kernel/debug/ieee80211/phy<x>/stations/<mac>/rc_stats
> 
> Please provide a copy of this file after doing an iperf over your
> wireless link for instance.
Could you tell me which iperf command to run ? I've never used it and
maybe I'm doing something wrong but I tried :

iperf -c 192.168.0.254 -m -w 200K -i 3 -t 30 -r -r

and I only get :

------------------------------------------------------------
Server listening on TCP port 5001
TCP window size:   256 KByte (WARNING: requested   200 KByte)
------------------------------------------------------------

and no measurements (192.168.0.254 is the name of my gateway).

Here is the corresponding rc_stats file anyway but I guess it's of no
use:

rate     throughput  ewma prob   this prob  this succ/attempt   success
attempts
TtP  1         0.0        0.0        0.0          1(  0)          0
0
     2         0.0        0.0        0.0          0(  0)          0
0
     5.5       0.0        0.0        0.0          0(  0)          0
0
    11         0.0        0.0        0.0          0(  0)          0
0
     6         0.0        0.0        0.0          0(  0)          0
0
     9         0.0        0.0        0.0          0(  0)          0
0
    12         0.0        0.0        0.0          0(  0)          0
0
    18         0.0        0.0        0.0          0(  0)          0
0
    24         0.0        0.0        0.0          0(  0)          0
0
    36         0.0        0.0        0.0          0(  0)          0
0
    48         0.0        0.0        0.0          0(  0)          0
0
    54         0.0        0.0        0.0          0(  0)          0
0

Total packet count::    ideal 4858      lookaround 255




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