Return-path: Received: from web23107.mail.ird.yahoo.com ([217.146.189.47]:31073 "HELO web23107.mail.ird.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751874AbYKKRRl convert rfc822-to-8bit (ORCPT ); Tue, 11 Nov 2008 12:17:41 -0500 Date: Tue, 11 Nov 2008 17:17:38 +0000 (GMT) From: Hin-Tak Leung Subject: Re: throughput problem/bisect with rtl8187B To: Larry Finger Cc: Herton Ronaldo Krzesinski , linux-wireless@vger.kernel.org In-Reply-To: <4919BA54.8040802@lwfinger.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Message-ID: <893556.60482.qm@web23107.mail.ird.yahoo.com> (sfid-20081111_181758_573076_CC54E066) Sender: linux-wireless-owner@vger.kernel.org List-ID: --- On Tue, 11/11/08, Larry Finger wrote: > Hin-Tak Leung wrote: > > --- On Tue, 11/11/08, Herton Ronaldo Krzesinski > wrote: > > > > > >> Lets try to identify what part is broken, I guess > is this, > >> can you try this > >> patch on latest wireless-testing? > > > > Tried it, no improvement. > > > > Can you /did you see any problem similiar to mine with > throughput on your system(s)? > > I may see a slight improvement with the patch. Throughput > using sftp goes from > 386 KB/s to 460 KB/s when I put in the patch, but there is > some jitter and that > change may not be significant. > > What rate-setting method are you using? I'm using > "pid", which rapidly goes to > 54 Mb/s on my device. I tried using minstrel and found that > it gets an > occasional burst of speed, but that it usually stays at 1 > Mb/s. I am using "pid" according to dmesg (does "minstrel" says it is choosen if it is?) - I haven't done anything so it should be using the default rc method. What I found is that the rate reported by iwconfig (I also get 54Mb/s, without the feedback patch) has nothing to do with how fast I can move actual data... Hin-Tak