Without further ado, the following was found: Issue: (Missing) markup of fstrim "Minimum contiguous free range to discard, in bytes. (This value is " "internally rounded up to a multiple of the filesystem block size.) Free " "ranges smaller than this will be ignored and fstrim will adjust the minimum " "if it\\(cqs smaller than the device\\(cqs minimum, and report that " "(fstrim_range.minlen) back to userspace. By increasing this value, the " "fstrim operation will complete more quickly for filesystems with badly " "fragmented freespace, although not all blocks will be discarded. The default " "value is zero, discarding every free block."