Manufacturing system dynamics and production performance in future time can be influenced by the current states and the external forces (e.g., random disruption events and control input). Hence, system states at the end of an action or a schedule plan (end-of-state) will impact the production performance in future time. In this paper, we analyze end-of-state impact on production performance of serial production lines with finite buffers and how different end-of-state will change system production. The concept of machine/system recovery time is proposed to identify the time it takes for such change in system production to occur. Analytical methods are developed to evaluate the aforementioned system production change and the machine/system recovery time. The benefits of the corresponding action or schedule plan can be obtained based on these evaluation results. This will help assess and determine suitable production actions and plans to more effectively improve system production.