Linux Top：快速了解 CPU 占用数量 (linux top cpu个数)
Linux Top: A Quick Guide to CPU Usage
As the use of Linux operating system becomes increasingly popular, it is important to understand the various tools and utilities that can be used to monitor system performance. One such utility is Linux Top, which provides real-time information about system processes and their respective CPU usage.
In this article, we will explore the basics of Linux Top and how it can be used to quickly identify CPU usage on your system.
What is Linux Top?
Linux Top is a command-line utility that provides real-time information about the processes running on a Linux system. It shows data about the CPU usage, memory usage, and other system resources being utilized by each process. It is a useful tool for system administrators and developers to monitor system performance and identify issues before they become critical.
How to Use Linux Top
To start using Linux Top, open your terminal and type “top” without the quotes. This will launch the utility and provide you with a live view of the processes running on your system.
The default view of Linux Top displays the processes in order of their CPU usage, with the most CPU-intensive processes at the top. The information displayed includes the process ID, user, CPU usage, memory usage, and other system resources being utilized by each process.
You can also sort the view by other system resources such as memory or disk usage by pressing the corresponding keys. For example, pressing “M” will sort the processes by memory usage, while pressing “D” will sort them by disk usage.
Another useful feature of Linux Top is its ability to filter the results based on a specific process name or PID. To filter by name, press the “O” key and then enter the name of the process you want to filter. To filter by PID, press the “F” key and then enter the PID number.
Overall, Linux Top is a powerful utility that provides real-time information about system processes and their respective CPU usage. It is an essential tool for system administrators and developers who need to monitor system performance and identify issues before they become critical.
