Gentoo users out there, the new baselayout package is coming soon, converting from a lot of bash scripts into baselayout-2 which uses OpenRC. These changes are fairly major, so you'll want to check out the Baselayout and OpenRC Migration Guide to make sure your system isn't rendered unbootable!
If you're not interested in baselayout-2, check out these bootchart values and get a bit more excited. Note that these stats don't mean all that much if you hardly ever reboot your machine :)