From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-iw0-f194.google.com ([209.85.223.194]:56761 "EHLO mail-iw0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757638Ab0ANU1V convert rfc822-to-8bit (ORCPT ); Thu, 14 Jan 2010 15:27:21 -0500 Received: by iwn32 with SMTP id 32so35810iwn.33 for ; Thu, 14 Jan 2010 12:27:19 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: <995709e41001091103t43738262ibb2c4e0c4beab26d@mail.gmail.com> <995709e41001120217r1b6b276ek70658a1142744142@mail.gmail.com> <4B4C8320.8060801@free.fr> <995709e41001120724j7a6627b1g5d90df8fb658ceaa@mail.gmail.com> <43e72e891001120846x453e4052oa93675b86fe4a86d@mail.gmail.com> <995709e41001120914n17cfdb56k664c2b42afe448f6@mail.gmail.com> <43e72e891001120918v70c3be7nd3d3819f0e8b0cd0@mail.gmail.com> <995709e41001122307g2d0e9546g2b3680a6cb0a345d@mail.gmail.com> Date: Fri, 15 Jan 2010 01:57:19 +0530 Message-ID: <995709e41001141227n31cab7aeuae0e5a974fa1afdd@mail.gmail.com> Subject: Re: [ath9k-devel] [Moblin Dev] Wireless is keep on disconnecting From: Jaswinder Singh Rajput To: Bob Copeland , davem@davemloft.net Cc: "Luis R. Rodriguez" , arjan@linux.intel.com, "Li, Yan" , dev@moblin.org, alainswb , linux-wireless@vger.kernel.org, "John W. Linville" , Jouni Malinen , Senthil Balasubramanian , ath9k-devel@lists.ath9k.org, Vasanthakumar Thiagarajan Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hello bob, On Thu, Jan 14, 2010 at 9:45 PM, Bob Copeland wrote: > On Wed, Jan 13, 2010 at 2:07 AM, Jaswinder Singh Rajput > wrote: >> Here is my test with iperf, even though iperf client does not work so >> I used iperf server and get speed of approx 19 Mbits/sec. Now my issue >> is why speed is soo slow ? > > Is your AP n-capable?  You won't get much above 20 Mbps TCP throughput > in 802.11a/g at 54 Mbits rates due to various overheads. > I run these tests on Wireless A/G. Can you please let me know what are the overheads for this performance degradation. As I shown in my last message, I am getting 15 Mbps. Thanks, -- JSR