<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[csdnwxhw的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/csdnwxhw</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; csdnwxhw]]></copyright><item><title><![CDATA[Makefile 语法]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/140909448</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/140909448</guid><author>csdnwxhw</author><pubDate>Sun, 04 Aug 2024 18:25:58 +0800</pubDate><description><![CDATA[编译器通常进行预处理、编译、汇编和链接处理，预处理包含了宏定义、文件包含、条件编译，编译则直接将代码翻译成机器码，汇编则将汇编代码翻译成机器码，链接则按照内存地址分配文件将各个文件的机器码统一形成一个可执行文件，对编译命令（比如gcc）而言该如何区别这些操作呢？·隐式规则用于说明 何时及如何根据其名称来重新生成一类目标文件，其描述了目标是如何依赖于名称相似的文件（一般来说除去后缀信息，其目标与依赖文件的名称是一样的），并调用命令来创建或更新目标；]]></description><category></category></item><item><title><![CDATA[sar 运行出错]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/135661786</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/135661786</guid><author>csdnwxhw</author><pubDate>Wed, 17 Jan 2024 22:24:30 +0800</pubDate><description><![CDATA[【代码】sar 运行出错。]]></description><category></category></item><item><title><![CDATA[磁盘调优总结]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/124548691</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/124548691</guid><author>csdnwxhw</author><pubDate>Mon, 02 May 2022 23:07:45 +0800</pubDate><description><![CDATA[9. 磁盘

磁盘I/O可能会造成严重的应用程序延时，因此是系统性能分析的一个重要目标；在高负载下，磁盘成为了瓶颈，CPU将持续空闲以等待磁盘I/O结束；

9.1 术语

虚拟磁盘：存储设备的模拟，在系统看来的一块物理磁盘可能由多块磁盘组成；
传输总线：用来通信的物理总线，包括数据传输I/O以及磁盘命令；
数据传输I/O：至少由方向、地址、大小组成；
磁盘命令：除了读写之外的其他非数据传输的命令；
扇区：磁盘上的一个存储块，通常为512B大小；
IOPS：Input/Output operation pe]]></description><category></category></item><item><title><![CDATA[Linux下的USE法]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/124548653</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/124548653</guid><author>csdnwxhw</author><pubDate>Mon, 02 May 2022 23:05:29 +0800</pubDate><description><![CDATA[概述：USE方法就是检查资源的使用率(utilizations)、饱和度(saturation)、错误(errors)状态，从而分析系统资源瓶颈和错误的方法；


物理资源：LPE即Linux性能事件、CPC即CPU性能计数器




模块
类型
指标




CPU
利用率
每个CPU: mpstat -P ALL、sar -P ALL系统范围：vmstate l、sar -u、dstat -c每个进程：top、htop、ps -o pcpu、pidstat l每个内核线程：top/htop(按K转换..]]></description><category></category></item><item><title><![CDATA[ARM Linux 在底层 BSP 上的优化]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/124085990</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/124085990</guid><author>csdnwxhw</author><pubDate>Sun, 10 Apr 2022 21:12:37 +0800</pubDate><description><![CDATA[`ARM Linux`在底层`BSP`上的优化]]></description><category></category></item><item><title><![CDATA[vi编辑器的模式转换]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123759593</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123759593</guid><author>csdnwxhw</author><pubDate>Sat, 26 Mar 2022 17:18:52 +0800</pubDate><description><![CDATA[vi编辑模式的转换]]></description><category></category></item><item><title><![CDATA[防止头文件被重复引用]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123666852</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123666852</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 17:57:27 +0800</pubDate><description><![CDATA[防止头文件被重复引用]]></description><category></category></item><item><title><![CDATA[Django中使用mysql和redis数据库]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123666750</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123666750</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 17:35:44 +0800</pubDate><description><![CDATA[Django中使用mysql和redis数据库]]></description><category></category></item><item><title><![CDATA[qemu中对虚拟中断的处理]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123666399</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123666399</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 17:26:42 +0800</pubDate><description><![CDATA[qemu中对虚拟中断的处理]]></description><category></category></item><item><title><![CDATA[多态中虚构造解析]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123665731</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123665731</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 17:06:21 +0800</pubDate><description><![CDATA[多态中虚构造解析]]></description><category></category></item><item><title><![CDATA[手机通讯录项目 基于C++编程语言]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123665623</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123665623</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 17:02:48 +0800</pubDate><description><![CDATA[手机通讯录项目(基于C++编程语言)]]></description><category></category></item><item><title><![CDATA[leetcode刷题总结]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123665161</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123665161</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 16:50:51 +0800</pubDate><description><![CDATA[leetcode刷题总结(C++)]]></description><category></category></item><item><title><![CDATA[整合邮箱的C++实现]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123665055</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123665055</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 16:48:12 +0800</pubDate><description><![CDATA[整合邮箱的C++实现]]></description><category></category></item><item><title><![CDATA[二叉树的前序、中序、后序遍历(c++)]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123664827</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123664827</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 16:43:47 +0800</pubDate><description><![CDATA[二叉树的前序、中序、后序遍历的C++实现]]></description><category></category></item><item><title><![CDATA[美团面试题-C++]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123664607</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123664607</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 16:39:47 +0800</pubDate><description><![CDATA[小团的装饰品、小团无路可逃、小团的选调计划、小团的神秘暗号、小美的区域会议、小团的复制粘贴、小美的跑腿代购、小美的仓库整理、小美的用户名]]></description><category></category></item><item><title><![CDATA[多个有序32位整数集合求交]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123664437</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123664437</guid><author>csdnwxhw</author><pubDate>Tue, 22 Mar 2022 16:35:22 +0800</pubDate><description><![CDATA[求多个集合的交集]]></description><category></category></item><item><title><![CDATA[查看qemu支持的开发板]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123643689</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123643689</guid><author>csdnwxhw</author><pubDate>Mon, 21 Mar 2022 19:25:45 +0800</pubDate><description><![CDATA[qemu支持的开发板]]></description><category></category></item><item><title><![CDATA[samba的安装与配置]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123642108</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123642108</guid><author>csdnwxhw</author><pubDate>Mon, 21 Mar 2022 18:14:37 +0800</pubDate><description><![CDATA[samba服务]]></description><category></category></item><item><title><![CDATA[CMake跨平台编译工具]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123596549</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123596549</guid><author>csdnwxhw</author><pubDate>Sat, 19 Mar 2022 16:07:34 +0800</pubDate><description><![CDATA[cmake学习笔记]]></description><category></category></item><item><title><![CDATA[交叉编译详述]]></title><link>https://blog.youkuaiyun.com/csdnwxhw/article/details/123596378</link><guid>https://blog.youkuaiyun.com/csdnwxhw/article/details/123596378</guid><author>csdnwxhw</author><pubDate>Sat, 19 Mar 2022 15:56:07 +0800</pubDate><description><![CDATA[交叉编译工具链]]></description><category></category></item></channel></rss>