Minix3 is a open-source microkernel operating system, whose important characteristic is kernel calls, which is located in the lowest layer of the structure module, provides a set of privileged kernel calls to the drivers and servers above it.
Minix3是一种开源微内核操作系统,内核调用是其重要特点,它是处于Minix3结构模块最低层的内核为其上层驱动程序和服务器提供的一组特权调用。
参考来源 - 基于Petri网程序切片方法的Minix3的分析与测试研究·2,447,543篇论文数据，部分数据来源于NoteExpress
优先级提高总是需要使用内核调用。
内核调用是异步的观点的CPU(见这个答案)。
Kernel calls are asynchronous from the point of view of the CPU (see this answer).
UNIX下的内核调用由所谓的syscall或者trap操作构成。
Under UNIX, calling the kernel consists of an operation known as a syscall or trap.
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