Microkernel optimization method of Internet of Things operating system

Abstract

The invention relates to the technical field of operating systems, and discloses a microkernel optimization method of an Internet of Things operating system. A plurality of Internet of Things devices and server devices are arranged in the Internet of Things, and the Internet of Things operating system is applied to the Internet of Things devices and the server devices. The microkernel optimization method comprises a system interface merging method, a delay updating process of a thread ready queue, a specified thread calling process, a thread lock releasing process, a power entrusting process and a power entrusting cancelling process. The technical scheme of the invention has the beneficial effects that the microkernel optimization method of the Internet of Things operating system is provided, functions of thread management, address space management, inter-thread communication, interrupt processing and the like can be realized, meanwhile, all functions of a bottom layer and flexible microkernel architecture design are considered, and cyclic dependence among different modules is avoided.

Description

technical field [0001] The invention relates to the technical field of operating systems, and discloses a microkernel optimization method for an Internet of Things operating system. Background technique [0002] The microkernels of existing IoT operating systems have been modularized, and well-defined interfaces are used between modules. Its source code has been divided into subsystems, modules and submodules. The different subsystems are almost completely separate parts of the microkernel, such as libraries for simple memory management, a simplified C library, or the main kernel image itself. Each subsystem consists of one or more modules that encapsulate logic units. For example, the threads module contains the data structures and methods needed to handle UHomeOS threads. The interfaces of these modules are well defined, hiding the implementation details. Likewise, a module can aggregate one or more submodules, which are used to further subdivide the module into smalle...

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Problems solved by technology

[0003] Traditional kernel synchronization mechanisms, such as semaphores and optional lock mechanisms, have problems such as thread deadlock and priority inversion, especially for the real-time characteristics of consumer and industrial IoT systems that require time constraints, resulting in more serious impacts, because these The kernel lock synchronization mechanism will cause threads to compete for critical areas in multiprocessors, resulting in a significant drop in system performance and real-time performance

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