What are the Metrics / Counters of Linux ?

About

This page is about the management operating system metrics in the Linux System.

All command line tools are collector that collects and sends the metrics.

They may send them:

For instance:

for processes, the metrics are collected via the the proc file system. For instance, the /proc/swaps and /proc/meminfo files contain information about memory usage on your system.

This section is about command line utility that sends the metrics by default to the terminal.

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See Sysstat package
See perf package
Dstat is a versatile replacement for vmstat , iostat, netstat and ifstat. (Written in python)
ifstat(1), iftop(8), iostat(1), mpstat(1), netstat(1), nfsstat(1), nstat, vmstat(1), xosview(1)

ps -ef|grep <process>

This section is about collector that sends the metrics to a backend server

Prometheus node exporter
Collectl to capture resource utilization metrics.
collectl and colmux: colmux is a collectl multiplexor, which allows one to collect

To start it:

with the desktop GUI, System menu > Choose Administration > System Monitor option.
at the shell prompt, type the following command :
```
gnome-system-monitor
```

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