Скачать или смотреть How to Use the Linux htop Command to Monitor System Performance

In this video, we’ll show you how to use the Linux htop command to monitor system performance. htop is an interactive tool that provides real-time monitoring of CPU usage, memory usage, running processes, and more. We’ll cover how to install htop, launch it, navigate the interface, sort processes, kill or renice processes, and search for specific processes. Let’s dive into the details and master htop for effective system monitoring!

Learn:

What is htop?
📊 htop is an interactive tool to monitor system performance in real-time.
It shows CPU usage, memory usage, running processes, and more.
Install it if it’s not already available:

sudo apt install htop
💡 This installs htop on Debian/Ubuntu-based systems.

Launching htop:
💻 To start htop, simply type:

htop
💡 This opens the interactive system monitor interface.

Navigating the Interface:
🖱️ Use your keyboard or mouse to interact with htop.

The display is divided into sections:
Top Section: Shows CPU, memory, and swap usage as bar graphs.
Middle Section: Lists all running processes with details like PID, user, and resource usage.
Bottom Section: Displays function keys (e.g., F9 to kill a process).

Sorting Processes:
🔄 You can sort processes by criteria like CPU or memory usage.
Press F6 to open the sort menu.
Select a column (e.g., PERCENT_CPU or PERCENT_MEM) to sort by.
💡 This helps you identify resource-heavy processes.

Killing a Process:
⚠️ To stop a misbehaving process, use the kill feature.
Navigate to the process using the arrow keys.
Press F9 to bring up the kill menu.
Choose a signal (e.g., 15 SIGTERM) and confirm.
💡 This stops the selected process safely.

Searching for a Process:
🔍 To find a specific process, press F3 and type its name.
For example, search for firefox to locate the Firefox browser process.
💡 This makes it easy to find and manage specific processes.

Renicing a Process:
⚙️ Adjust the priority of a process using the renice feature.
Navigate to the process using the arrow keys.
Press F7 to decrease priority or F8 to increase it.
💡 Lower numbers mean higher priority (e.g., -20 is highest).

Exiting htop:
⏹️ To exit htop, press F10 or Ctrl+C.
💡 This closes the tool and returns you to the terminal.


✅ Why use htop:
Monitor system performance — view CPU, RAM, and process usage in real time.
Manage processes easily — kill, renice, or sort tasks interactively.
User-friendly view — colorful, organized display better than top.

✅ Pro Tips:
Regular Monitoring: Regularly use htop to keep an eye on system performance.
Identify Bottlenecks: Use sorting features to quickly identify resource-intensive processes.
Safe Killing: Always try to use SIGTERM (signal 15) to safely terminate processes.

GitLab Link: You can find the example files and the final poster used in this video at this GitLab link: https://gitlab.com/hatem-badawi/linux....

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👉 Watch now and master using htop to monitor system performance!

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