Hi Amit, On Mon, Feb 10, 2020 at 3:20 AM Amit K Bag <amit.k.bag@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hello All, > > I am tring to test the OPP throughput in linux. > I transferred between 2 machines having ubuntu 16.04 with bluez > version 5.44 in that I am getting 1.4mbps speed. > > Kernel : 4.14.13 > OS : ubuntu 18.04.2 LTS > Bluez -5.44 > > I am using a 12 MB of audio file. > But the same file when I transferred between 2 machines having ubuntu > 18.04 the speed is significantly reduced. > > Kernel : 4.18.0-15-generic > OS : ubuntu 18.04.2 LTS > Bluez -5.48 > > Could someone tell me why its reduced in ubuntu 18.04 I don't think we change anything on Obexd related to that so perhaps it is something related to the L2CAP MTU? We could try setting the MTU to 0 so it automatically picks the matching MTU if you do have the following patch applied to your kernel: Bluetooth: Auto tune if input MTU is set to 0 -- Luiz Augusto von Dentz
