System monitoring with nmon

Nmon is another interesting monitoring tool for Linux systems which can present many information related to the CPU, memory, network, etc. through an organized screen.

I have tested the 13g version on Ubuntu Server 10.10. When you start the application, this shows you a little menu with different options, in order to configure your own monitoring panel.

The next figure is a dump of my setting. I have used CPU utilization by processor, memory and swap stats, kernel stats and load average, network and disk input/output and top processes.




And finally, also say that with nmon you can take the data and dump them into a CSV file. For instance, in the following case I have run nmon in background to capture the data each 5 sg and a total of 200 times. Besides I have specified the file name with the '-F' option.

root@ubuntu-server:~# nmon -t -F `hostname`.csv -s 5 -c 200