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The following is a related blog post about viewing CPU and memory usage in Linux, which includes detailed explanations and sample commands to help you understand how to monitor CPU and memory usage in Linux systems.
Monitor the CPU and memory usage of the Linux system
In the Linux system, we often need to check the CPU and memory usage of the system in order to understand the performance and resource usage of the system. This blog post will introduce some commonly used commands and tools to help you monitor the CPU and memory usage of your Linux system.
View CPU usage
top command
The top command is a commonly used system monitoring tool, which can display various performance indicators of the system in real time, including CPU usage. The following is an example of using the top command to view CPU usage:
top
In the output of the top command, you can see the overall CPU usage of the current system, the CPU usage of each process, and other system information. Press the "1" key on the keyboard to view the usage of each CPU core.
mpstat command
The mpstat command is used to display the average performance statistics for each processor. It can provide more detailed CPU usage information, including the usage and average load of each CPU core. The following is an example of using the mpstat command to view CPU usage:
mpstat -P ALL
The command will display usage and other performance metrics for each CPU core.
View memory usage
free command
The free command is used to view the memory usage of the system, including information such as total memory, used memory, and free memory. The following is an example of using the free command to view memory usage:
free -h
This command will display the memory usage in a human-readable form for a more intuitive understanding of the memory status of the system.
top command
In addition to checking the CPU usage, the top command can also be used to check the memory usage. In the output of the top command, you can see the memory usage of the current system, including information such as used memory, available memory, cache, and buffer.
Summarize
This blog post introduces some commonly used commands and tools to help you monitor CPU and memory usage in Linux systems. Through these commands, you can keep abreast of the performance of the system and take timely measures to optimize the use of system resources.
Hope this blog post was helpful to you!