Uncovering the Best Iotop Alternative for Linux I/O Monitoring
Iotop has long been a go-to tool for Linux users seeking to understand which processes are consuming I/O resources. Its top
-like interface provides a quick glance at disk activity, making it invaluable for diagnosing performance bottlenecks. However, like any software, Iotop may not always be the perfect fit for every user or scenario, prompting a search for a robust Iotop alternative.
Top Iotop Alternatives
While Iotop serves its purpose well, a variety of other tools offer extended functionalities, broader platform support, or a different user experience. Here's a look at some of the best alternatives that can help you keep a closer eye on your system's I/O and overall performance.

htop
htop is an interactive process viewer for Linux and other Unix-like systems, offering a more feature-rich and interactive experience than traditional top
. It's a great Iotop alternative because it provides a comprehensive overview of system processes, including CPU and memory usage, with the ability to easily sort, search, and kill processes. It runs on the command line, is lightweight, and is excellent for performance monitoring, making it a powerful tool for diagnosing various system issues, not just I/O.

glances
Glances is a CLI curses-based monitoring tool written in Python, offering a holistic view of your system. It's an excellent Iotop alternative because it provides not just I/O statistics but also CPU, memory, network, and disk I/O, all in a single, well-organized interface. Being open-source and cross-platform (Mac, Windows, Linux, BSD), Glances is highly versatile and leverages the PsUtil library for comprehensive system information, making it a powerful tool for hardware and network monitoring.

Resource Monitor
Resource Monitor is a built-in system application for Microsoft Windows operating systems. While not a direct command-line Iotop alternative for Linux, it serves a similar purpose on Windows by allowing users to view detailed information about hardware usage, including CPU, memory, disk, and network activity. For Windows users, it's an indispensable free tool for hardware and performance monitoring, offering a graphical interface for easy analysis of system resources.

Sternum
Sternum focuses on IoT security by embedding security directly into embedded devices. While not a performance monitoring tool in the same vein as Iotop, it's an interesting alternative in the broader context of IoT device management. Sternum provides a holistic and scalable IoT endpoint security solution, which is crucial for maintaining the integrity and performance of IoT devices by preventing malicious activity that could impact I/O or other resources. It is a free, web-based platform.

Atop
Atop is an advanced interactive monitor for Linux systems that provides detailed load information at both the system and process levels. As a potent Iotop alternative, Atop excels in monitoring disk I/O, network activity, CPU, and memory usage. It offers historical data logging, allowing users to analyze performance trends over time, which is invaluable for diagnosing intermittent issues. It is a free and open-source tool, making it a robust choice for in-depth hardware monitoring on Linux.
Choosing the best Iotop alternative depends on your specific needs, whether it's more detailed I/O statistics, broader system monitoring, or cross-platform compatibility. Explore these options to find the perfect tool that empowers you to keep a close watch on your system's performance and resource utilization.