But, because XFS delayed its allocation decision, it was able to write the data in one fell swoop, improving write performance as well as reducing overall filesystem fragmentation.
According to Hill, their data suggest that the start ofSolar Cycle 25 may be delayed until 2022—about two years late—or the cycle maysimply not happen.
If XFS hadn't delayed its allocation decision, it may have unknowingly written the data into multiple non-contiguous chunks, reducing write performance significantly.