The cpuid instruction is a processor instruction that can be used to retrieve information about the processor, such as the processor's vendor, model, and features. On a Linux system, you can use the x86info and cpuid commands to read the cpuid instruction for each CPU on the system.
Here is an example of how to use the x86info and cpuid commands to read the cpuid instruction for each CPU on a Linux system:
x86info. If you don't already have x86info installed on your system, you can install it using your system's package manager. For example, on a Debian-based system, you can use the apt command to install x86info:$ sudo apt install x86infoSruoce:www.lautturi.com
x86info command to list the CPUs on the system. You can use the x86info command with the --cpu option to list the CPUs on the system.For example, to list the CPUs on the system, you can use the following command:
$ x86info --cpu
This will print a list of the CPUs on the system, along with some basic information about each CPU.
cpuid command to retrieve information about a specific CPU. You can use the cpuid command with the --CPU option to specify the CPU for which you want to retrieve information, and the --info option to print information about the CPU.For example, to retrieve information about CPU 0, you can use the following command:
$ cpuid --CPU 0 --info
This will print detailed information about CPU 0, including the processor vendor, model, and features.
You can repeat this process for each CPU on the system to retrieve information about all of the CPUs.
Note that the cpuid command requires root privileges to run, so you may need to use the sudo command to run the cpuid command with the necessary privileges.
These are just a few examples of how to use the x86info and cpuid commands to read the cpuid instruction for each CPU on a Linux system. You can use the x86info --help and cpuid --help commands to see a complete list of options and usage examples.