atop

Atop is a powerful command line performance monitoring tool for Linux systems. It provides detailed and real-time monitoring of various system resources such as CPU usage, memory usage, disk utilization, network activity, and more.

One of the key features of atop is its ability to collect data at very short intervals, allowing for highly granular and precise monitoring of system performance. The collected data is stored in binary log files, which can be easily analyzed and viewed using atop.

With atop, you can track not only the system-wide performance metrics but also monitor individual processes. It displays comprehensive information about each process, including CPU usage, memory consumption, disk activity, and network utilization.

In addition to the real-time monitoring, atop also provides historical data analysis. It allows you to evaluate system performance over a specific duration, making it great for troubleshooting performance issues or analyzing trends.

Atop's user-friendly interface makes it easy to navigate and interpret the collected data. It provides a comprehensive view of the system's performance with color-coded bars and graphs. You can customize the display to focus on specific resources or processes.

Atop's logging capability allows you to record system performance data for later analysis. The log files can be easily rotated and compressed to save disk space.

The command line interface of atop makes it highly versatile and suitable for remote or scripted monitoring. It can be integrated with other tools and monitoring systems to automate data collection and analysis.

Atop comes with a wide range of options and customization features, allowing you to tailor the monitoring experience to your specific needs. You can configure the sampling interval, set alarms for specific thresholds, and choose which resources to monitor.

Atop is open-source software available under the GNU General Public License (GPL). It is actively maintained and regularly updated with new features and bug fixes.

Overall, atop is an excellent choice for system administrators and developers who require a comprehensive and real-time performance monitoring tool with advanced features and powerful analysis capabilities.