Linux笔记案例的相关内容

文章 2024-08-19 来自：开发者社区

Linux源码阅读笔记12-RCU案例分析

在之前的文章中我们已经了解了RCU机制的原理和Linux的内核源码，这里我们要根据RCU机制写一个demo来展示他应该如何使用。 RCU机制的原理 RCU（全称为Read-Copy-Update）,它记录所有指向共享数据的指针的使用者，当要修改构想数据时，首先创建一个副本，并在副本中修改，所哟访问线程都离开读临界区后，使用者的指针指向修改后的副本，并且删除旧数据。 ...

文章 2024-08-19 来自：开发者社区

Linux源码阅读笔记10-进程NICE案例分析2

set_user_nice set_user_nice函数功能：设置某一进程的NICE值，其NICE值的计算是根据进程的静态优先级（task_struct->static_prio），直接通过set_user_nice函数更改进程的静态优先级。内核源码 void...

文章 2024-08-19 来自：开发者社区

Linux源码阅读笔记09-进程NICE案例分析1

task_nice task_nice函数功能：获取某个进程的nice值，其中nice值为进程的优先级，与静态优先级有关（nice=static_prio-120）。 nice的取值范围：-20 ~ 19 内核源码 ...

文章 2024-08-19 来自：开发者社区

Linux源码阅读笔记08-进程调度API系统调用案例分析

kthread_create_on_node kthread_create_on_node函数功能：指定存储节点创建新内核线程。源码如下：操作实战 ...

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