Hi,
I just had a huge boost on my Internet speed (1Gbs down / 600Mbps up), it's a good thing but it showed that many of my SBC that are running 24/7 are not ready to handle such high bandwidth.
In each case running a curl outputting to /dev/null -> I almost top out the Gigabit interface -> 99Mo/s.
When I test download speed (while saving on disk) :
* Old Banana pi running kernel 4.14.18-sunxi (armbian of course but not updated with stretch) with an