DragonFlyBSD vs. FreeBSD vs. Ubuntu 20.04 On Intel's Core i9 10900K Comet Lake
Even when all three operating systems were on GCC 9.3, Ubuntu 20.04 was delivering measurably better performance in many of the workloads on this 10-core / 20-thread Comet Lake system.
In a few of the tests, FreeBSD 12.1 was the victor when using its default Clang-based compiler.
FreeBSD 12.1 overall was tending to come out faster than DragonFlyBSD 5.8.1.