Hi
I'm using btrfs on a dedicated drive holding lxd containers, and I am today thinking to also migrate my data and backup drives from ext4 to btrfs.
Yet, I read several benchmarks notably those of phoronix.com (
https://www.phoronix.com/scan.…item=linux-50-filesystems or https://www.phoronix.com/scan.…cle&item=linux55-ssd-raid ) saying that btrfs and zfs were noticeably slower and something very slower than ext4.
What's your thoughts about it? Have anyone compared between ext4 and btrfs or zfs on the speed level, notably for shared drive access and backups?
(I know btfs and zfs offer plenty of extra features compared to ext4, I mainly wonder if there is a significant performance cost to use them versus the plain old ext4)