Remember this is a narrow benchmark of multi-core scalability under a SQL load. It's not particularly useful as evidence in OS flames, and the goal isn't to see "how much faster" Linux is, but rather to characterize areas where Dragonfly needs work.
(I will admit I was surprised at how much better Linux did at the heavy-SMP side of the graph though. Edit for clarity: I'm not at all surprised that Linux does well; I live in that world too. I'm surprised that it does so much better than the BSDs. At the right edge of the graph, Linux is still flat where the other kernels are dropping fast due to overhead, and Linux is doing 3x-4x better. That's surprising.)
