'Phoronix reports:

If you rely on an Intel I219-LM Gigabit Ethernet adapter, you will want to look forward to upgrading your Linux kernel build soon... A fix was committed Thursday after Intel engineers discovered this particular Ethernet chipset had only been running at around 60% of its maximum speed due to a regression introduced back in 2020...

Since the release of Linux 5.8 in mid-2020, this Ethernet adapter had been running at around 60% of its advertised potential due to an e1000e driver regression.'

-- source: https://slashdot.org/story/23/04/22/0554251

Cheers, Peter