OS:centos6.5
操作步骤：
1）输入sar命令：sar --help
结果：提示command not found
原因：未安装工具使用yum命令安装， yum install sysstat
说明：（yum也是个工具，如果你的linux系统无yum工具需要自行安装）
安装过程，如下：
| [[email protected] ~]# yum install sysstat Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.tuna.tsinghua.edu.cn * updates: mirrors.aliyun.com Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package sysstat.i686 0:9.0.4-33el6_9.1 will be installed --> Finished Dependency Resolution Dependencies Resolved =============================================================================================================================================================================================================================== Package Arch Version Repository Size =============================================================================================================================================================================================================================== Installing: sysstat i686 9.0.4-33el6_9.1 updates 228 k Transaction Summary =============================================================================================================================================================================================================================== Install 1 Package(s) Total download size: 228 k Installed size: 804 k Is this ok [y/N]: y Downloading Packages: sysstat-9.0.4-33el6_9.1.i686.rpm | 228 kB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Warning: RPMDB altered outside of yum. ** Found 5 pre-existing rpmdb problem(s), 'yum check' output follows: LoadGenerator-11.00.000-1.i386 has missing requires of libicudata.so LoadGenerator-11.00.000-1.i386 has missing requires of libicudata.so.36 LoadGenerator-11.00.000-1.i386 has missing requires of libicui18n.so.36 LoadGenerator-11.00.000-1.i386 has missing requires of libicutu.so.36 LoadGenerator-11.00.000-1.i386 has missing requires of libicuuc.so.36 Installing : sysstat-9.0.4-33el6_9.1.i686 1/1 Verifying : sysstat-9.0.4-33el6_9.1.i686 1/1 Installed: sysstat.i686 0:9.0.4-33el6_9.1 Complete! |
2）安装完成sysstat工具，即可使用sar命令：
说明：