I've set up an Raspberry pi in a network with Gigabit NICs. On an SSD I have set up an shared SMB directory. The SSD itself writes with more than 400 Mbyte/s. Due to an encryption this drops to 160-200 Mbytes/s. Still, when I do an upload, it maxes out at 30 Mbyte/s. I would expect 100-110 Mbyte/s in this particular network setting. What can I do to increase performance?
EDIT: I checked which speed I get via a wired connection to the network switch. Here I receive 65 Mbyte/s in reading and 50 Mbyte/s in writing. Is this bottleneck caused by the CPU of the rasberry? As mentioned earlier: The SSD as well as the network should support full Gbit speed... What is your bandwhich?