> -----Ursprüngliche Nachricht----- > Von: amateur , BlueZ users > Gesendet: 09.12.06 02:29:54 > An: bluez-users@lists.sourceforge.net > Betreff: Re: [Bluez-users] latency problems > 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 > Thanks for your answer. I added 2 .txt files with the output of hcidump -X -V running on my "master-dongle" PC. I cannot see a retransmission or similar, but I'm not very into this topic. Greets Chris ______________________________________________________________________________ "Ein Herz für Kinder" - Ihre Spende hilft! Aktion: www.deutschlandsegelt.de Unser Dankeschön: Ihr Name auf dem Segel der 1. deutschen America's Cup-Yacht!