To display the utilization of each multiple SMP (Symmetric Multiprocessing) CPU processors individually in Linux, you can use the mpstat command.
The mpstat command is part of the sysstat package, which provides tools for monitoring system performance in Linux. The mpstat command allows you to display information about the utilization of each CPU processor in an SMP system.
To display the utilization of each CPU processor individually, use the mpstat command with the -P option and the CPU processor number. For example, to display the utilization of CPU processor 1, you can use the following command:
$ mpstat -P 1
This will display the utilization of CPU processor 1.
To display the utilization of all CPU processors individually, you can use a loop to run the mpstat command for each CPU processor. For example, to display the utilization of all CPU processors, you can use the following command:
$ for i in $(seq 0 $(expr $(nproc --all) - 1)); do mpstat -P $i; done
This will display the utilization of all CPU processors, one after the other.
The mpstat command displays the utilization of each CPU processor in terms of the percentage of time that the processor was busy. It also displays the average utilization of all CPU processors.
You can also use the top command to display the utilization of each CPU processor. The top command displays a real-time view of the utilization of each CPU processor, as well as other system resources such as memory and swap. To display the utilization of each CPU processor, press the 1 key while the top command is running. This will toggle the display to show the utilization of each CPU processor.