Return-Path: Date: Sat, 9 Dec 2006 09:29:37 +0800 From: amateur To: bluez-users@lists.sourceforge.net Message-ID: <20061209012937.GA3119@163.com> References: <969792183@web.de> MIME-Version: 1.0 In-Reply-To: <969792183@web.de> Subject: Re: [Bluez-users] latency problems Reply-To: amateur , BlueZ users List-Id: BlueZ users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Sender: bluez-users-bounces@lists.sourceforge.net Errors-To: bluez-users-bounces@lists.sourceforge.net On Fri, Dec 08, 2006 at 01:47:15PM +0100, Christian Gebhard wrote: > Good Afternoon > > I have some problems concerning my round trip time using l2ping. I have two PCs(kernel 2.6.17) each with a Bluegiga WT11 module connected via USB. When I use l2ping the round trip time is between 14ms and up to sometimes 65ms. I also wrote two programs that send and return numbers and count the time between sending and receiving a number. Here the times are similar. However when I reduce the time between the pings the round trip time is a bit shorter. > > My questions: > - are these times normal (average of 20ms)? > - are the "extremely" varying times normal? > - are the times dependent to the power management of the BT-module > I can not give any help unless you give the output of hcidump -x -V It sounds like that some retransmissions occured. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users