Abstract: This application discloses a task processing method. The method is applied to a computer system, and the computer system includes a user mode and a kernel mode. The user mode includes a plurality of tasks, and the tasks are threads or processes. The method includes: detecting, in the kernel mode, a type of a first request of entering a kernel entry; when the type of the first request indicates that a first task is suspended in the user mode, switching at least from a user-mode context of the first task to a user-mode context of a second task, recording a suspended state of the first task and a running time from a moment of starting to run the first task to a moment of suspending the first task, and skipping processing other scheduling statuses of the first task; and running the second task in the user mode.

Abstract: A weak tumble flow fast combustion system is provided. An intake throat and an exhaust throat are provided on a cylinder head, a section of an intake duct close to the intake throat is a tumble guide duct, an axis of the tumble guide duct is arranged obliquely with respect to the bottom surface of the cylinder head, and an upper side surface of the tumble guide duct is a flowing-down guide surface arranged obliquely with respect to the bottom surface of the cylinder head, a lower side surface of the tumble guide duct is an arc-shaped guide surface recessed toward the bottom surface of the cylinder head, an eccentric chamfer is provided at the lower end of the intake throat, and the eccentric direction of the eccentric chamfer is offset along the direction connecting the center of the intake throat to the exhaust throat.