Perhaps my google-fu is poor since I found nothing relevant while searching. What is the true resolution of BTRFS's COW? In other words, does a log file being written to to a BTRFS filesystem have growing copies of itself on the character level or the blocksize level?
Character level = a copy of the file is saved after each character is written to it.
Blocksize level = a copy of the file is saved after it grows to the size of the BTRFS block size (which I believe is called a leafsize in BTRFS terms).
I hope my question makes sense.
Last edited by graysky (2013-08-02 21:26:42)
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