1. A vibratory compactor comprising: a frame; a first cylindrical drum having a modifiable first compaction effort, wherein the first cylindrical drum is coupled to the frame; a second cylindrical drum having a modifiable second compaction effort, wherein the second cylindrical drum is coupled to the frame and disposed behind the first cylindrical drum; a first sensor coupled to the first cylindrical drum and configured to sense a first surface compactability; a second sensor coupled to the second cylindrical drum and configured to sense a second surface compactability; a control system configured to: receive the first surface compactability, determine a first target compaction effort, and modify the first compaction effort to the first target compaction effort; receive the second surface compactability, determine a second target compaction effort, and modify the second compaction effort to the second target compaction effort; receive the first surface compactability and the second surface compactability to determine a third target compaction effort, and modify the first compaction effort to the third target compaction effort; and receive the first surface compactability and the second surface compactability to determine a fourth target compaction effort, and modify the second compaction effort to the fourth target compaction effort.