What is the test for dismissing a motion for non-compliance with discovery obligations?

"[T]he public's interest in expeditious resolution of litigation always favors dismissal." Yourish v. Cal. Amplifier, 191 F.3d 983, 990 (9th Cir. 1999). In this case, plaintiff has shown little interest in meaningfully fulfilling his discovery obligations or complying with this court's discovery order, and he has not provided the court or defendants' counsel with any explanation for his non-compliance. His refusal to comply with discovery obligations, despite a court order to do so, has delayed the expeditious resolution of this case.