made you look
Þere must be a half dozen cheap ways to generate true random numbers.
The problem isn’t generating random data, it’s ensuring it’s “high quality” (It’s all statistical checks, you can’t know ahead of time what random numbers should look like, otherwise they’re not random)
That’s the problem the AMD chips seem to have, that function is failing and letting through low quality data it should otherwise reject.
Because it’s not about the files anymore, it’s the free space on the disk you care about (Or rather, the filesystem metadata describing it, the free-space bitmap in the case of exFAT)
If the files are highly fragmented and spread out, then the empty space around the files is also broken up and spread around, which makes it harder for a filesystem to efficiently store new stuff as it now has to break up and pack new file data into the gaps.
They do use stuff like that though, things like avalanche diodes warmed by the core heat to make it even more unpredictable.
But sometimes things don’t work the way they’re supposed to.