To be specific and get right to it. I was transferring a large disc image ~4GB from a USB 3.0 external disk to a share on a server using a desktop machine.
I believe USB 3.0 is 5 Gb/s and I believe my LAN is either Gb or 100Mb. All the intervening hardware is high end or SMB class (switches, routers and machines).
So though windows 8.1's performance monitoring option I watched the transfer which takes a couple of minutes. During this time the graph pretty consistently showed 11Mb/s. Seems a little slow to me given the hardware even considering some overhead.
So, is that slow? If so, how can I quantify this in general? What is the best way to monitor and test for and ultimately track down bottlenecks. I would like to see where and what and what it would take to eliminate these choke points.