When jetmech referred to full scale lets define what happens in commercial jets.

When they get up to speed they actually disable their ailerons (on most modern jets) and operate on spoiler control because it creates less drag and no adverse yaw effect.

When they want to descend fast they deploy their speed brakes which is just MORE spoilers across a larger portion of the wing. These set up massive amounts of drag and turbulence over the wing. You may have felt it, like a prolonged shuddering during descent. Allows them to put the nose down without building too much speed horizontally.

And then after landing they have yet another setting called "ground spoilers". Once the planes sensors detects the wheels rolling these deploy spoilers from the side of the fuselage to the wing tip to kill ALL lift in the wing and plant the plane firmly on the ground for maximum control.