Too many cores
https://apebox.org/wordpress/linux/1281 [apebox.org]
2019-03-13 20:14
Why would the new servers be worse, but only for Raspbian?
Common wisdom says ARM architecture versions add new instructions, but can still run code for older versions. This is, broadly, true. However, there are a few cases where deprecated instructions become missing instructions, and continuity demands those instructions be caught by the kernel, and emulated.
source: L