Monitoring CPU performance

This recipe will show you how to visualize using pmchart and command-line tools to monitor your CPU's performance. We will have a look at the following metrics:

• kernel.all.cpu.wait.total

• kernel.all.cpu.irq.hard

• kernel.all.cpu.irq.soft

• kernel.all.cpu.steal

• kernel.all.cpu.sys

• kernel.all.cpu.user

• kernel.all.cpu.nice

• kernel.all.cpu.idle

How to do it…

This will show you how to create the text and graphical representation of performance data. Perform the following steps:

1. Display live data for the preceding metrics with a 1-second interval for the host, localhost. Execute the following command:

   ~]# pmdumptext -H -t 1 -i -l kernel.all.cpu.wait.total kernel.all.cpu.irq.hard kernel.all.cpu.irq.soft kernel.all.cpu.steal kernel.all.cpu.sys kernel.all.cpu.user kernel.all.cpu.nice kernel.all.cpu.idle -h localhost
   

   

2. Create a configuration file for pmchart to display live data called cpu_stack.conf with the following contents:

   #kmchart
   version 1
   
   chart style stacking antialiasing...