…the one that emulates your real workload. And for me (and probably many of you reading this), that would be “build a kernel as fast as possible.” And for that, I recommend the simple kcbench. I kcbench mentioned it a few years ago, when writing about a new workstation that Level One Techs set up for me, and I’ve been using that as my primary workstation ever since (just over 5 years!).