

BTRFs, which has advanced filesystems features like snapshots, data integrity checks, and scrubbing, is a less performant filesystem for databases than filesystems that don’t have these features, like EXT4, F2FS and XFS. No shit, Sherlock. At least compare it to ZFS or something.
If you are storing files that you care about, use a filesystem with integrity checks. If you require high database performance, it’ll probably be happier using a whole partition, if not just a whole pile of disks, and be allowed to get on with it. If you are driving nails into a wall, do not compare the performance of different screwdrivers for the task. And so on.
Hey! Mine not only tells the time, but also the day of the week and month, and has an integrated alarm clock and stopwatch. Battery lasts for seven years, keeps time to within a few minutes per year, is cheap enough so that I don’t mind wearing it when I’m cycling as I can just replace it if I break it, and it has a celebrity endorsement. Of sorts, anyway.