Today in mkfs.btrfs manpage I found this:
Specify the nodesize, the tree block size in which btrfs stores metadata. The default value is 16KiB (16384) or the page size, whichever is bigger. Must be a multiple of the sectorsize and a power of 2, but not larger than 64KiB (65536). Leafsize always equals nodesize and the options are aliases.
Smaller node size increases fragmentation but leads to taller b-trees which in turn leads to lower locking contention. Higher node sizes give better packing and less fragmentation at the cost of more expensive memory operations while updating the metadata blocks.
Note versions up to 3.11 set the nodesize to 4k.
During Manjaro install I did manual partitioning and format with default settings.
How can I check what is my current nodesize on my disk?
Is possible to change it with the system on the disk?