【性能测试】服务器资源监测工具sar安装

 [root@yyy ~]# sar
 Cannot open /var/log/sa/sa19: No such file or directory

在Linux系统中，运行sar命令，发现无法执行；

原因是需要安装，安装命令如下：

 [root@yyy ~]# yum install sysstat
 Loaded plugins: fastestmirror
 Setting up Install Process
 Determining fastest mirrors
 base                                                                                                                                                                                 | 3.7 kB     00:00
 extras                                                                                                                                                                               | 3.4 kB     00:00
 extras/primary_db                                                                                                                                                                    |  29 kB     00:00
 updates                                                                                                                                                                              | 3.4 kB     00:00
 updates/primary_db                                                                                                                                                                   | 3.7 MB     00:01
 Resolving Dependencies
 --> Running transaction check
 ---> Package sysstat.x86_64 0:9.0.4-33.el6_9.1 will be installed
 --> Finished Dependency Resolution

 Dependencies Resolved

 ============================================================================================================================================================================================================
  Package                                         Arch                                           Version                                                  Repository                                    Size
 ============================================================================================================================================================================================================
 Installing:
  sysstat                                         x86_64                                         9.0.4-33.el6_9.1                                         base                                         234 k

 Transaction Summary
 ============================================================================================================================================================================================================
 Install       1 Package(s)

 Total download size: 234 k
 Installed size: 826 k
 Is this ok [y/N]: y
 Downloading Packages:
 sysstat-9.0.4-33.el6_9.1.x86_64.rpm                                                                                                                                                  | 234 kB     00:00
 Running rpm_check_debug
 Running Transaction Test
 Transaction Test Succeeded
 Running Transaction
   Installing : sysstat-9.0.4-33.el6_9.1.x86_64                                                                                                                                                          1/1
   Verifying  : sysstat-9.0.4-33.el6_9.1.x86_64                                                                                                                                                          1/1 

 Installed:
   sysstat.x86_64 0:9.0.4-33.el6_9.1                                                                                                                                                                         

 Complete!

安装完成，便可以正常使用sar相关命令，进行性能监测了。