When it comes to monitoring system performance on Linux, there are several tools available that provide valuable insights into resource usage. Among the most popular are top, htop, and glances. Each of these tools has its own set of features and advantages. In this article, we will compare these three tools in terms of usage, benefits, and unique features.
- top
top is a basic and widely-used command-line tool that comes pre-installed on most Linux distributions. It provides a real-time view of system processes, CPU usage, memory usage, and other performance metrics.
Usage
top
Once you run the command, you can interact with the interface using various keyboard shortcuts. For example:
k – Kill a process
r – Renice a process
q – Quit the top command
Benefits
Pre-installed on most Linux distributions
Low resource consumption
Provides essential system performance metrics
- htop
htop is an enhanced version of top, offering a more user-friendly and visually appealing interface. It provides additional features and allows for easier navigation and interaction.
Usage
htop
You can interact with htop using keyboard shortcuts similar to top, but with additional functionality:
F2 – Open setup menu
F3 – Search for a process
F6 – Sort processes
F9 – Kill a process
Benefits
Colorful and customizable interface
Supports mouse interactions
Provides more detailed information
Easier to navigate and use compared to top
- glances
glances is a versatile system monitoring tool that provides a comprehensive overview of various system metrics. It is designed to present a large amount of information in a clear and concise manner.
Usage
glances
glances offers various modes and options to customize the display:
glances -2 – Display in 2-column mode
glances -t 5 – Set refresh rate to 5 seconds
glances -h – Display help information
Benefits
Comprehensive system monitoring
Web-based interface option
Highly customizable
Plugins available for additional features
Supports exporting data to various formats (CSV, JSON, etc.)
Conclusion
Each of these tools has its own strengths and is suitable for different use cases:
top is ideal for quick and basic monitoring needs with minimal resource usage.
htop provides a more user-friendly and feature-rich experience, making it great for regular monitoring and process management.
glances is the most comprehensive and customizable tool, suitable for users who need detailed insights and advanced monitoring capabilities.
Ultimately, the choice between top, htop, and glances depends on your specific needs and preferences. Whether you prioritize simplicity, usability, or advanced features, there is a tool that will fit your requirements.
