Linux驱动开发(工具.1：嵌入式Linux性能分析工具bootchart)

参考：https://www.freesion.com/article/1911209178/#LinuxBootChart_41我为大家准备了两个工具的安装包：https://download.csdn.net/download/qq_36813351/20359920一.安装编译嵌入式Linux系统下的bootchart-lite1.使用gcc交叉编译bootchart-lite安装包下src

嵌入式吴彦祖

1270人浏览 · 2021-07-18 21:55:39

嵌入式吴彦祖 · 2021-07-18 21:55:39 发布

参考：https://www.freesion.com/article/1911209178/#LinuxBootChart_41

我为大家准备了两个工具的安装包：

https://download.csdn.net/download/qq_36813351/20359920

一.安装编译嵌入式Linux系统下的bootchart-lite

1.使用gcc交叉编译bootchart-lite安装包下src文件夹下的bootchart-lite，
路径：bootchart使用方法\开发板\bootchart-lite-master.zip\bootchart-lite-master\src

2.将得到的可执行文件放到嵌入式设备的/sbin文件夹

3.新版本的Linux内核需要自己写system下的服务/etc/systemed/system

4.systemctl enable rc-local.service 使能服务

文件名：rc-local.service

[Unit]
Description=/etc/rc.local Compatibility
ConditionPathExists=/etc/rc.local

[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99

[Install]
WantedBy=multi-user.target

这部分参考：http://www.ruanyifeng.com/blog/2016/03/systemd-tutorial-part-two.html

在/etc文件夹下建立rc.local文件

#!/bin/bash
#癡HIS FILE IS 酓DED餏OR COMPATIBILITY xURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to xarallel execution during boot
# this script will NOT be run after all other services.
#
# that this script will be executed during boot.
echo "Now begain bootchart-lite"
/sbin/bootchart-lite
echo "Hello World!"

这一步执行完就可以在Linux内核启动时启动bootchart-lite文件，bootchart-lite在执行时会在/etc/bootchart-lite文件夹下生成。但是文件夹bootchart-lite不会自动生成需要你手动写一个文件夹出来。再给这几个文件全都加上权限chmod 777 XXX.然后等着结果出来就行了。

二.安装Ubuntu下的bootchart分析工具

1.安装Linux的java环境，并配置环境变量
2.安装ant，sudo apt-get install ant
3.安装bootchart，先将代码解压，执行安装脚本sudo ./install.sh，自动编译java文件，生成bootchart.jar工具
4.将截取的三个log压缩，tar czf bootchart.tgz *.log
5.调用java生成的bootchart工具去生成照片。前边是工具路径，后边是压缩文件路径。java -jar /usr/bootchart-0.9/bootchart.jar /usr/bootchart.tgz