[EMAIL PROTECTED] wrote:
-skip-
as you can see i got close to 2 Mbit/sec throughput (receiver reports in
Mbit/sec and sender reports in Kbytes/sec). numbers look consistent on
both sides. in theory bluetooth 2.0+edr can give you up to 3 Mbit/sec
(please correct me if i wrong here), but in real life you unlikely to
see this because of protocol header overhead. in this case its protocol
stack looks something like
tcp -> ip -> ppp -> rfcomm -> l2cap
bottom line: it looks like bluetooth 2.0+edr dongles will talk high
speed without stack doing anything at all. i'm not sure why do you see
low transfer speed, but perhaps it has something to do with obex?
Very-very strange... I use obexapp from ports to use FTRN profile, and
whatever I do I do not get to speeds of EDR. Same thing with kubuntu linux
6.06 tls live cd. All works, but slowly. So could you PLEASE try to use
obexapp between two freebsd boxes to transfer files? or even use obexapp
to transfer files from and to some EDR-capable device like phone?
Everything is seems to be that the low speed is "thanks to" some obex
stuff. but why??? is something from bluetooth 1.2 spec hardcoded in
openobex or obexapp?
ok, i just tried to transfer 7 mbytes file from one box to another using
bluetooth 2.0+edr dongles and obexapp.
i can confirm that throughput is nowhere near bluetooth 2.0+edr
throughput. i basically get around 55 kbytes/sec (around 440 kbit/sec)
which is way too low.
i do not think that this has anything to do with the dongles or the
stack (because i demonstrated about 2 mbit throughput with lan profile
and ttcp), so it could only be either obexapp itself on openobex library.
btw, what tool did you use on ubuntu linux to transfer files over obex?
can you tell it uses openopex library as well?
in the mean time, i'm going to take a look at obexapp and see if i
goofed anywhere.
And one more question, I hack a bit
src/usr.sbin/bluetooth/hccontrol/util.c to fully dump and describe all 8
bytes of features. Is it worthy to post patches here?
yes
thanks,
max
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