Btrfs RAID vs. Linux Software RAID Benchmarks On Linux 4.7

For FS-Mark the traditional Linux Software RAID was slower at RAID1 for two and four disks over the Btrfs native RAID, but was much faster now at RAID10.

Or with a multi-threaded FS-Mark, Btrfs RAID was faster.

Btrfs RAID was also faster for BlogBench.

Lastly, the PostgreSQL results were competitive for the most part except during RAID1 where the MDADM configured RAID arrays were much slower.

Those are the Btrfs RAID vs. Linux Software RAID (mdadm) results I have so far. Other (non-Btrfs) Linux 4.7~4.8 RAID tests are still coming up, including of ZFS. These results today were rather mixed, but keep in mind this was just looking at the out-of-the-box performance for each of these Linux RAID implementations across four consumer grade SATA 3.0 SSDs. Depending upon your drives and amount of software tuning, your results may vary.