On Tue, May 22, 2012 at 02:55:45PM +0530, Mayank Rana wrote: > On 5/21/2012 9:34 PM, Greg KH wrote: > >> > >>Initial analysis seems that Network Interface is more faster than > >>USB is able to transfer data with RNDIS USB Function. > > > >So the USB bus is totally full, yet the network is empty at times? Or > >are there gaps on the USB traffic also? > Yes. All USB requests are queued with UDC and there is no more USB > request available. Network is still having more data to transfer > here > and from u_ether, netif TX Queue is stopped to not to push more data. If the USB bus is full, then how can you get better throughput? USB has hardware limitations, if USB 2.0 is the gating factor, then use USB 3.0 hardware, that is why it was created :) good luck, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
