Is there a class of solvable groups $G$ having a derived length $O(\log|G|)$? See [here][1] for the definition of Big-Oh$(O)$ and here for the definition of [derived series][2] of a group][2]. Any help would be appreciated. Thank you in advance! [1]: https://en.wikipedia.org/wiki/Big_O_notation [2]: https://groupprops.subwiki.org/wiki/Derived_series