BTRFS - I surrender! Good features BUT Complex, wastes time, not KISS, does not play well

[mettacrawler]

Thanks. I opened a discussion about setting the I/O scheduler on a per-file system type basis.

Set the I/O scheduler based on file system type?

I recently found out that btrfs is slightly faster when the I/O schedule is set to “none”. I started testing by setting the I/O scheduler on the command line: echo none > /sys/block/sda/queue/scheduler Once I was satisfied that there was an improvement, I added it to the system startup: # sed 's;bfq;none;' /usr/lib/udev/rules.d/60-block-scheduler.rules \ > /etc/udev/rules.d/90-ioschedulers.rules But then I thought that if this is a btrfs issue, all disks should not have to be set to the sam…