On Ubuntu Linux check CPU usage in Terminal. Here are the 5 useful commands to check cpu information in Linux Ubuntu. Using these commands one can check CPU and memory in Linux System.
Learn about these commands:
lscpu
lscpu command displays information about the CPU architecture. lscpu gathers CPU architecture information from sysfs and /proc/cpuinfo. The command output can be optimized for parsing or for easy readability by humans.
The information includes, for example, the number of CPUs, threads, cores, sockets, and Non-Uniform Memory Access (NUMA) nodes. There is also information about the CPU caches and cache sharing, family, model, bogoMIPS, byte order, and stepping.
$ lscpu
cpuinfo
proc is the process information pseudo-filesystem. The proc filesystem is a pseudo-filesystem which provides an interface to kernel data structures.
It is commonly mounted at /proc. Most of it is read-only, but some files allow kernel variables to be changed. The cpuinfo shows a detail information about the CPU.
$ cat /proc/cpuinfo
inxi
inxi is a full featured CLI system information tool. It is available in most Linux distribution repositories, and also runs somewhat on BSDs. The primary purpose of inxi is for support, and sys admin use. inxi is a command line system information script built for for console and IRC.
It is also used for forum technical support, as a debugging tool, to quickly ascertain user system configuration and hardware. inxi shows system hardware, CPU, drivers, Xorg, Desktop, Kernel, GCC version(s), Processes, RAM usage, and a wide variety of other useful information.
Know more about inxi command – Click Here
$ sudo apt install inxi
$ inxi -C
lshw
lshw stands for list hardware. lshw is a small tool to extract detailed information on the hardware configuration of the machine. It can report exact memory configuration, firmware version, mainboard configuration, CPU version and speed, cache configuration, bus speed, etc. on DMI-capable x86 or IA-64 systems and on some PowerPC machines (PowerMac G4 is known to work).
It currently supports DMI (x86 and IA-64 only), OpenFirmware device tree (PowerPC only), PCI/AGP, CPUID (x86), IDE/ATA/ATAPI, PCMCIA (only tested on x86), SCSI and USB.
$ sudo lshw -C CPU
demidecode
dmidecode is a tool for dumping a computer’s DMI (some say SMBIOS ) table contents in a human-readable format. This table contains a description of the system’s hardware components, as well as other useful pieces of information such as serial numbers and BIOS revision. Thanks to this table, you can retrieve this information without having to probe for the actual hardware. While this is a good point in terms of report speed and safeness, this also makes the presented information possibly unreliable.
The DMI table doesn’t only describe what the system is currently made of, it also can report the possible evolutions (such as the fastest supported CPU or the maximal amount of memory supported).
SMBIOS stands for System Management BIOS , while DMI stands for Desktop Management Interface. Both standards are tightly related and developed by the DMTF (Desktop Management Task Force).
As you run it, dmidecode will try to locate the DMI table. If it succeeds, it will then parse this table and display a list of records.
$ sudo dmidecode --type processor