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  1. Computer Science

Operating System

PreviousHTTP/2 in ActionNextBasic

Last updated 4 years ago

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首先需要了解操作系统的基本原理：

然后需要用到实践中去，比如常见的性能工具：

以及性能优化手段：

      • 上下文切换

常用的

。使用率过高的常见原因有：

，表现为进程长时间处于 D 状态，或较多进程处于 D 状态

Linux 内存的一些

建设

性能诊断工具
CPU
内存
磁盘
网络
监控系统
基础
系统初始化
基本原理
Buffer 与 Cache 的区别
缓存命中率
内存泄漏
Swap
优化思路
平均负载
CPU 上下文切换
CPU 使用率
iowait 过高
僵尸进程过多
软中断过多
CPU 优化思路
文件系统
磁盘
优化思路