bluetooth 2.0 is extremely slow

Mike Cronenworth mike at cchtml.com
Fri Mar 28 19:31:27 UTC 2008


-------- Original Message  --------
Subject: bluetooth 2.0 is extremely slow
From: Mike Cronenworth <mike at cchtml.com>
To: Fedora List <fedora-list at redhat.com>
Date: 03/26/2008 08:24 PM

> Hi all,
> 
> I've lived with slow transfer speeds long enough. Ever since I purchased 
> an ASUS Bluetooth 2.0+EDR USB adapter it has always taken *minutes* 
> instead of *seconds* to transfer files from my cell phone to my computer 
> and vice versa.
> 
> Fedora 8, latest updates.
> Nokia N95-1, latest firmware.
> 
> Both are Bluetooth 2.0+EDR devices.
> 
> It took *40 seconds* to transfer a 1 megabyte picture. I timed this with 
> 'watch -n 1 date' for grins, so I can't give you nanosecond numbers, but 
> even a rough estimate shows that transfer speeds are *abysmal* and need 
> to be addressed. Ideally it should be taking less than 10 seconds to 
> transfer the same image file on a true 2.0+EDR setup. I have two 
> different computers with the same Asus adapter. Same speeds.
> 
> I saw someone fixed this by forcing larger MTUs. 
> http://lists.freebsd.org/pipermail/...ary/000847.html 
> <http://lists.freebsd.org/pipermail/freebsd-bluetooth/2007-January/000847.html> 
> 
> 
> Before modifying the OpenOBEX sources, I posted a message on their 
> board, but I haven't heard anything yet. Does anyone have any experience 
> with this?
> 
> Thanks,
> Mike
> 

I hate to bump, but if no one on this list has an idea, what would the 
next best course of action be? fedora-devel? The OpenOBEX developers 
seem to be non-responsive.

Thanks,
Mike




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