进程是处于执行期的程序以及它所管理的资源（如打开的文件、挂起的信号、进程状态、地址空间等等）的总称。注意，程序并不是进程，实际上两个或多个进程不仅有可能执行同一程序，而且还有可能共享地址空间等资源。 Linux内核通过一个被称为进程描述符 ...

初步了解进程描述符 task_struct。 进程的术语是 process，是 Linux 最基础的抽象，另一个基础抽象是文件。 最简单的理解，进程就是执行中 (executing, 不等于running) 的程序。 更准确一点的理解，进程包括执行中的程序以及相关的资源 (包括cpu状态、打开的文件、挂起 ...

Modifying any part of the Linux kernel source code is usually a challenging task most software developers would prefer to avoid, composed as it is thousands of code lines divided by hundred of files.

Many market sectors, such as financial trading, defense, industry automation and gaming, long have had a need for low latencies and deterministic response time. Traditionally, custom-built hardware ...