Master Linux System Monitoring with dstat: A Quick Guide
This article introduces dstat, a versatile Linux monitoring tool that consolidates vmstat, iostat, and ifstat functions, demonstrates its default and customizable outputs, shows how to identify top resource‑consuming processes, and provides simple installation steps for CentOS.
dstat is a comprehensive monitoring tool for Linux.
The official description calls it a multi‑function replacement for vmstat , iostat , ifstat and adds many extra features.
Running dstat shows a colorful, clearly divided interface that updates every second, displaying CPU, disk, network, paging and system statistics by default.
You can customize the output, for example to view CPU, memory and network with dstat -cmn.
A powerful feature is the ability to identify the processes that consume the most resources, e.g. dstat -t --top-cpu --top-io --top-mem, which highlights the top CPU, I/O and memory users.
System load can also be displayed using dstat -l.
Running dstat --help reveals many options; combining them allows extensive system monitoring, making dstat a rich source of data for scripts.
It is especially recommended for users who write monitoring scripts, as its all‑in‑one output simplifies analysis compared to chaining multiple commands.
Installation on CentOS is straightforward: yum install dstat.
For more usage examples, install dstat and explore its options.
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