第 9 章 使用 PCP 对 XFS 的性能分析

流程

1. 进入 xfs 目录：

   # cd /var/lib/pcp/pmdas/xfs/

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2. 手动安装 XFS PMDA：

   xfs]# ./Install
   
   You will need to choose an appropriate configuration for install of
   the “xfs” Performance Metrics Domain Agent (PMDA).
   
     collector     collect performance statistics on this system
     monitor       allow this system to monitor local and/or remote systems
     both          collector and monitor configuration for this system
   
   Please enter c(ollector) or m(onitor) or (both) [b]
   Updating the Performance Metrics Name Space (PMNS) ...
   Terminate PMDA if already installed ...
   Updating the PMCD control file, and notifying PMCD ...
   Waiting for pmcd to terminate ...
   Starting pmcd ...
   Check xfs metrics have appeared ... 149 metrics and 149 values

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3. 通过输入 c 表示 collector 、输入 m 表示 monitor 或输入 b 表示两者，来选择想要的 PMDA 角色。PMDA 安装脚本提示您指定以下一个 PMDA 角色：

   • collector 角色允许在当前系统上收集性能指标

   • monitor 角色允许系统监控本地系统、远程系统或两者

     默认选项是 collector 和 monitor，它允许 XFS PMDA 在大多数情况下正常工作。