Getting Information About CPU in Linux
There are many tools you can use to get system information on Linux. In this article, we will review some commands that can be used to get information about "CPU (Central Processing Unit)".
uname command you can get some basic information about the kernel and CPU:
lscpu command allows you to get more technical information about your processor. With
lscpu you can see many data such as CPU virtualization support, cache memory size, number of cores, processor brand and model, number of cores per socket:
ali@zion:~$ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 39 bits physical, 48 bits virtual CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 94 Model name: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz Stepping: 3 CPU MHz: 2600.000 CPU max MHz: 3500.0000 CPU min MHz: 800.0000 BogoMIPS: 5199.98 Virtualization: VT-x L1d cache: 128 KiB L1i cache: 128 KiB L2 cache: 1 MiB L3 cache: 6 MiB
By reading the
/proc/cpuinfo file, you can get technical details like the
ali@zion:~$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 94 model name : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz stepping : 3 microcode : 0xea cpu MHz : 2600.000 cache size : 6144 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 22 wp : yes
If you have noticed, there is a statement,
processor: 0. I did not write the entire output. However, in the content of this file, you can get information about each core separately. The output above is only a part of the information given about the first core.
Architecture and CPU op-mode Difference
Although you are using a processor with 64-bit architecture, you can run programs compiled for 32-bit. If you are using a 32-bit Linux distribution on your system, you are likely to get output similar to:
The following conclusion can be drawn from here. Although the processor also supports 64-bit architecture; You may be using an operating system with a 32-bit architecture.