Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-12-03 Thread reinette chatre
On Wed, 2008-12-03 at 09:09 -0800, Maxim Levitsky wrote: > On Wed, 2008-12-03 at 08:55 -0800, reinette chatre wrote: > > On Fri, 2008-11-21 at 12:28 -0800, Maxim Levitsky wrote: > > > > > sorry for cross-posting, but this issue really spans both iwl3945 and > > > ath5k. > > > > > > I have two la

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-12-03 Thread reinette chatre
On Fri, 2008-11-21 at 12:28 -0800, Maxim Levitsky wrote: > sorry for cross-posting, but this issue really spans both iwl3945 and ath5k. > > I have two laptops (acer 5720, and aspire one) and I see some strange speed > issues. > > I initially blamed iwl3945, then thought it got fixed, but now I

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-12-03 Thread Maxim Levitsky
On Wed, 2008-12-03 at 08:55 -0800, reinette chatre wrote: > On Fri, 2008-11-21 at 12:28 -0800, Maxim Levitsky wrote: > > > sorry for cross-posting, but this issue really spans both iwl3945 and ath5k. > > > > I have two laptops (acer 5720, and aspire one) and I see some strange speed > > issues.

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-25 Thread Felix Fietkau
Benoit PAPILLAULT wrote: > Felix Fietkau a écrit : >> While reading the code for calculating the frame duration, i noticed >> something odd: It doesn't seem to be taking into account the short >> vs long preamble distinction for ERP rates. IMHO this might be causing >> issues like this. I've seen s

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-25 Thread Benoit PAPILLAULT
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Felix Fietkau a écrit : > While reading the code for calculating the frame duration, i noticed > something odd: It doesn't seem to be taking into account the short > vs long preamble distinction for ERP rates. IMHO this might be causing > issues like t

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-24 Thread Johannes Berg
On Mon, 2008-11-24 at 10:43 +0100, Felix Fietkau wrote: > Benoit PAPILLAULT wrote: > > I did a similar test here and results is very strange. AP was my good > > old linksys WRT54G running an iperf server. Client was a laptop running > > either ath5k or madwifi/trunk and an iperf client. Channel is

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-24 Thread Felix Fietkau
Benoit PAPILLAULT wrote: > I did a similar test here and results is very strange. AP was my good > old linksys WRT54G running an iperf server. Client was a laptop running > either ath5k or madwifi/trunk and an iperf client. Channel is 5. Both > drivers show the same behaviour. > > At the beginning

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-23 Thread Benoit PAPILLAULT
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Maxim Levitsky a écrit : > Derek Smithies wrote: >> Hi, >> to verify that it is a rate control issue, there is one very simple and >> very practical test. >> >> Take both ends of your link, and set them to fixed rate, and at the rate >> you think it

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-22 Thread Maxim Levitsky
Derek Smithies wrote: > Hi, > to verify that it is a rate control issue, there is one very simple and > very practical test. > > Take both ends of your link, and set them to fixed rate, and at the rate > you think it should be achieving. > If you can achieve significantly higher throughputs wit

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-21 Thread Derek Smithies
Hi, to verify that it is a rate control issue, there is one very simple and very practical test. Take both ends of your link, and set them to fixed rate, and at the rate you think it should be achieving. If you can achieve significantly higher throughputs with fixed rate, you know that the ra

Re: [ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-21 Thread Bob Copeland
On Fri, Nov 21, 2008 at 10:28:29PM +0200, Maxim Levitsky wrote: > I initially blamed iwl3945, then thought it got fixed, but now I have > ath5k, and speeds are low > and I suspect that both drivers has bugs regarding to speed. Quite possible, but both use mac80211 for rate control. Which rate c

[ath5k-devel] Unusually low speeds with ath5k and iwl3945

2008-11-21 Thread Maxim Levitsky
Hi, sorry for cross-posting, but this issue really spans both iwl3945 and ath5k. I have two laptops (acer 5720, and aspire one) and I see some strange speed issues. I initially blamed iwl3945, then thought it got fixed, but now I have ath5k, and speeds are low and I suspect that both drivers h