This result file is one of the most interesting disk comparisons recently on OpenBenchmarking.org. There are benchmark results from a 14 disk (Samsung 850) RAID array on Btrfs and compared to EXT4 in LVM striped and MD configurations, results with smaller RAID sets, and more.
If you want to dig deeper, there are some other interesting Linux disk benchmark results uploaded by the same user. So if you are curious about Linux disk/file-system performance on larger disk setups compared to what I normally have access to, check it out!
Of course, with the reworked and rewritten search functionality and other new feature work on the new OpenBenchmarking.org that launched in conjunction with Phoronix Test Suite 6.2, it's easier than ever to dig deeper into the around a million public Linux/open-source benchmark results currently available. Of course, any feedback and feature requests on the continually evolving OpenBenchmarking.org is welcome as always.