Techniques are generally described relating to methods, apparatuses and articles of manufactures for scheduling and/or organizing execution of tasks on a computing platform. In various embodiments, the method may include identifying successively one or more critical time intervals, and scheduling and/or organizing task execution for each of the one or more identified critical time intervals. In various embodiments, one or more tasks to be executed may be scheduled to execute based in part on their execution completion deadlines. In various embodiments, organizing one or more tasks to execute may include selecting a virtual operating mode of the platform using multiple operating speeds lying on a convexity energy-speed envelope of the platform. Intra-task delay caused by switching operating mode may be considered. Other embodiments may also be described and/or claimed.