Where are the kernel-level tests that do more than exercise the filesystem and network driver (singular) and the scheduler? More than half of those charts were flat, which could mean they weren't making appropriate measurements.

For example, show how mutexes have improved, or copy-on-write, or interrupt handlers, or timers, or workqueues, or kmalloc, or anything else that a system and kernel programmer would care about. I like the user-centric perspective: it's very good information to have and share, but don't call what you've done a kernel benchmark. Maybe call it a kernel survey of its impact on users.

Yes, here in Japan the 'washlet' is very popular. You'll find it in most department stores, restaurants, and houses. However, in train stations and public spaces, you'll find the opposite end of the spectrum: washiki - the squatter. It's arguably the cleanest since you don't actually touch anything (no seat, no bum sweat residue, no stray hair, ...). The first go is a challenge though: a delicate balance between, well, balance and positioning.

I prefer the 'dirty' washlets.