Embedded Technology Guide Tech How to Check Historical CPU – Htop

How to Check Historical CPU – Htop


How to Check Historical CPU – Htop

Monitoring CPU usage is essential for system administrators and power users who want to keep an eye on their system’s performance. Htop is a powerful command-line tool that allows you to view real-time CPU and memory usage. However, it also offers the ability to check historical CPU usage, which can be valuable for troubleshooting or analyzing system behavior over time. In this article, we will guide you through the steps to check historical CPU usage using Htop.

1. Install Htop: If you don’t have Htop installed on your system, you can easily install it using the package manager of your Linux distribution. For example, on Ubuntu, you can run the command: ‘sudo apt-get install htop’.

2. Open Htop: Launch Htop by typing ‘htop’ in your terminal.

3. Enable Logging: Press ‘F2’ to access the setup menu. Scroll down to ‘Logging’ and press ‘Enter’. Enable logging by selecting ‘Start logging to file’.

4. Specify Log File: Choose a location and name for your log file. Press ‘Enter’ to confirm.

5. Start Monitoring: Press ‘F2’ to return to the main Htop interface. Use the arrow keys to navigate and monitor CPU usage in real-time.

6. Stop Logging: To stop logging, press ‘F2’, scroll down to ‘Logging’, and select ‘Stop logging to file’.

7. Analyze the Log File: Open the log file in a text editor or a spreadsheet program to analyze the historical CPU usage data. You can identify trends, spikes, or abnormalities in CPU usage over time.


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1. Can I monitor CPU usage for specific processes using Htop?
Yes, Htop allows you to sort processes by CPU usage and filter them based on specific criteria.

2. How can I check CPU usage for a specific time range?
By analyzing the log file generated by Htop, you can check CPU usage for any desired time range.

3. Can I export the log file to another format?
Yes, you can export the log file to a CSV format for further analysis or visualization using spreadsheet programs or data analysis tools.

4. Can I monitor CPU usage remotely using Htop?
Yes, you can SSH into a remote system and use Htop to monitor CPU usage on that system.

5. Is Htop available for Windows or macOS?
No, Htop is primarily designed for Linux-based systems. However, alternatives like Process Explorer and Activity Monitor are available for Windows and macOS, respectively.

6. Does Htop consume significant system resources?
Htop is lightweight and designed to have minimal impact on system resources.

7. Can I customize the Htop interface?
Yes, Htop offers various customization options, allowing you to personalize the interface according to your preferences.

In conclusion, Htop provides a straightforward and efficient method to check historical CPU usage. By following the steps outlined above, you can easily monitor and analyze CPU performance over time, helping you optimize your system’s efficiency and troubleshoot any issues that may arise.