2009-11-08 23:37:57

by Hin-Tak Leung

[permalink] [raw]
Subject: Re: Changing from Minstrel to PID

On Sun, Nov 8, 2009 at 9:39 PM, Mart?n Ernesto Barreyro
<[email protected]> wrote:

> I don't know, I'll post the minstrel statistics, maybe it'll help you.Some
> months ago the rate control wasn't working at all, and Larry took care of
> it. Since that both algorithms started working, the count of retrys was
> missing at that time.
> Both algorithms started working, but minstrel sometimes works for while but
> then goes to the max rate, in my case 54mbps if i a don't change it to other
> with iwconfig, e.g iwconfig wlan0 rate 11M auto

I am sure somebody with more experience with tuning mistrel can give
you some help...

>> The other thing is, you can probably patch compat-wireless to do
>> something similiar or at least experiment with it, as long as your
>> kernel is configured with most of them as modules. Switching
>> compat-wireless is quite easy, and particularly with the
>> 'driver-select rtl818x' option you just rebuild about 6 kernel modules
>> instead of the usual 50+, which makes it quite quick and painless.
>
>
> You are saying that i could give it a try for adding the option that i was
> asking for?
> Iill give it a shot but i don't know how many time will it take me

Yes, compat-wlreless is useful for trying out small patches. Adding a
module parameter isn't too much trouble, i think - and there are
plenty of examples (many kernel module do parameters).


2009-11-10 02:16:42

by Martín Ernesto Barreyro

[permalink] [raw]
Subject: Re: Changing from Minstrel to PID

El dom, 08-11-2009 a las 23:38 +0000, Hin-Tak Leung escribió:
> On Sun, Nov 8, 2009 at 9:39 PM, Martín Ernesto Barreyro
> <[email protected]> wrote:
>
> > I don't know, I'll post the minstrel statistics, maybe it'll help you.Some
> > months ago the rate control wasn't working at all, and Larry took care of
> > it. Since that both algorithms started working, the count of retrys was
> > missing at that time.
> > Both algorithms started working, but minstrel sometimes works for while but
> > then goes to the max rate, in my case 54mbps if i a don't change it to other
> > with iwconfig, e.g iwconfig wlan0 rate 11M auto
>
> I am sure somebody with more experience with tuning mistrel can give
> you some help...
>
> >> The other thing is, you can probably patch compat-wireless to do
> >> something similiar or at least experiment with it, as long as your
> >> kernel is configured with most of them as modules. Switching
> >> compat-wireless is quite easy, and particularly with the
> >> 'driver-select rtl818x' option you just rebuild about 6 kernel modules
> >> instead of the usual 50+, which makes it quite quick and painless.
> >
> >
> > You are saying that i could give it a try for adding the option that i was
> > asking for?
> > Iill give it a shot but i don't know how many time will it take me
>
> Yes, compat-wlreless is useful for trying out small patches. Adding a
> module parameter isn't too much trouble, i think - and there are
> plenty of examples (many kernel module do parameters).

I've my 2.31 kernel running (from archlinux repositories) and
compat-wireless 2009-11-06 and now not even with pid i get it working
good. It goes to the max rate available.

>From the distance that I'm from the AP i have to limit the rate to
11Mbps

I'll compile wireless testing and i'll post the statistics, or if
someone tell the information they need to debug it i'll post it.

--
Martín Ernesto Barreyro <[email protected]>
Analista Universitario en Redes de Datos.