Those after the Oracle Linux Server 6.1 vs. FreeBSD 9.0 benchmarks can see them on OpenBenchmarking.org. An Intel Core i7 870 Lynnfield box was used for the testing. Right now I'm also running some Oracle Linux 6.1 benchmarks on other systems too, besides the other Oracle results on OpenBenchmarking.org. If you're wondering how the performance of Oracle Linux Server 6.1 compares to that of Scientific Linux 6.1 and CentOS 6.1, if there are any differences while derived from the same upstream Red Hat Enterprise source, those tests are being conducted at the moment too.
Any other test requests? Post them in the forums.
Here's just a few of the Oracle vs. FreeBSD performance benchmarks. Both operating systems were in their stock configuration aside from FreeBSD 9.0 using ZFS.