Return-Path: MIME-Version: 1.0 In-Reply-To: References: Date: Fri, 20 Aug 2010 09:52:25 -0700 Message-ID: Subject: Re: PAN performance From: Han To: steven bluez Cc: linux-bluetooth@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-bluetooth-owner@vger.kernel.org List-ID: On Thu, Aug 19, 2010 at 11:59 PM, steven bluez wrote: > > Hi Han, > On Fri, Aug 20, 2010 at 9:27 AM, Han wrote: >> >> Hi, >> I have been using bluetooth PAN to run some personal programs. One >> thing I noticed is that PAN seems to be very slow (i.e. not up to >> 3Mbps for BT 2.0). I have bluetooth 2.0 adapters on my laptops and I >> do SSH over PAN. ?Whenever I run a GUI application (on sshd server), i >> see the GUI response is very slow. ?It is not video or anything so I >> don't think it needs up to 3Mbps. Is this slowness over PAN expected? >> >> Thanks. >> Han >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" >> in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at ?http://vger.kernel.org/majordomo-info.html > > I think is depending upon the vendor you have. I had a chip which had no > issues like yours and the 3mbps doesnt come into the scenario you expect > instead you? get 1-2mbps in bluetooth. If it's bidi direction it might > vary...My experience of pan would be around 1.5mpbs MAX I noticed the difference between chips as well. But i saw the issue even with one of mine better BT doggles ;-). Btw, I tried to use "ssh -C -X" options and now the latency is much better. > > Regards, > Steven >