Summary/background: DragonflyBSD split from FreeBSD (partly) over multicore strategy, FreeBSD going with threads and fine-grained kernel locks and DragonflyBSD going with a microkernel and multiple processes (not entirely dissimilar to GNU Hurd.)
This post shows a standard PostgreSQL benchmark on a big machine (2 cpus * 6 cores/cpu * 2 hardware threads/core, 96GB RAM) and the news is that Dragonfly is approaching FreeBSD's performance (while hopefully being more flexible/secure due to the microkernel design).
As an aside, Scientific Linux handily destroys both FreeBSD and DragonflyBSD in localhost benchmarks, but crashes rather a lot. (This seems odd, but the focus is on the DragonflyBSD / FreeBSD comparison anyway.)
This post shows a standard PostgreSQL benchmark on a big machine (2 cpus * 6 cores/cpu * 2 hardware threads/core, 96GB RAM) and the news is that Dragonfly is approaching FreeBSD's performance (while hopefully being more flexible/secure due to the microkernel design).
As an aside, Scientific Linux handily destroys both FreeBSD and DragonflyBSD in localhost benchmarks, but crashes rather a lot. (This seems odd, but the focus is on the DragonflyBSD / FreeBSD comparison anyway.)