Hello, I've rtl8187 usb wifi card on board (at less is inside my laptop)
and
I've some problems with the rate control.
When I use the PID algorithm with 2.6.26-1-686(debian) or 2.6.28 kernels
or
minstrel with 2.6.28 it always goes to 54Mb/s, and it doesn't work. If I
run
iwconfig wlan0 rate 11M auto, it starts working. Its a little
"optimistic".
This is the rc_stats output
rate throughput ewma prob this prob this succ/attempt success
attempts
P 1 0.9 99.9 100.0 0( 0) 382
382
2 1.9 99.9 100.0 0( 0) 222
222
5.5 5.0 99.9 100.0 0( 0) 222
222
11 9.5 99.9 100.0 4( 4) 48070
48070
6 1.4 25.0 100.0 0( 0) 1
1
9 3.6 43.7 100.0 0( 0) 2
2
t 12 11.0 99.9 100.0 0( 0) 228
228
18 4.0 25.0 100.0 0( 0) 1
1
24 5.3 25.0 100.0 0( 0) 1
1
36 7.6 25.0 100.0 0( 0) 1
1
48 9.7 25.0 100.0 0( 0) 1
1
T 54 20.0 99.9 100.0 0( 0) 53
53
Total packet count:: ideal 8384 lookaround 441
All the attemps succeed, this is after I use iwconfig wlan0 rate 11M
auto,
otherwhise I couldn't write this, couse it stays at 54Mb/s and doesn't
works.
Today, january 7, I updated the driver with the compat-wireless tarball.
Now the
driver just stays in 1Mb/s.
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 3546 lookaround 186
I send this problem to Larry, but since someone posted something similar
I
thought it would be useful.
Martín
--
Martín Ernesto Barreyro <barreyromartin@xxxxxxxxx>
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