Interesting deep dive in where the PIDs seen in user space come from. And also yes, there is something matching PID 0 which can be traced back to early UNIX systems.

Good advice on designing your database tables. The comments are good too, they allow to complete the picture.

SIMD keeps providing interesting performance boosts for parsing work loads.

Unsurprisingly they had to adjust under the pressure. The most blatant issues might be gone, it is still a bad idea at its core.