Presumably seconds since I'm not sure what else would make sense here. It'd also be helpful if the y axis had consistent scale between each graph and horizontal lines are set y axis intervals
The different X axes are because I figured there's no point having a bunch of graphs which are 90% empty. For a long time we only had base/UFS images. (Even arm64 came a few years later than amd64.)
Seems zfs is quite a bit faster than ufs