As far as that goes, Oracle prohibits the installation of their database on btrfs (note 2290489.1: "Oracle DB has specifically said that they do not support usi

As far as that goes, Oracle prohibits the installation of their database on btrfs (note 2290489.1: "Oracle DB has specifically said that they do not support using BTRFS filesystems... BTRFS is optimized for non-database workloads."). XFS for databases is what is used on tpc.org, but perhaps these new improvements may help.