It contains useful information like CPU architecture, vendor name, model name. You can only get a number of CPUs by using the grep command as follows. It prints the number of processing units available for the current process. The hwinfo command is a hardware information tool that is used to analyze the hardware on a computer and to display detailed information about the variety of hardware components in a human readable format.
It reports information about CPU, RAM, keyboard, mouse, graphics card, sound, storage, network interface, disk, partition, bios, and bridge, etc,. The top command provides a dynamic real-time view of the running system processes and a list of tasks currently managed by the Linux kernel. The Htop command is an open source ncurses-based process viewer for Linux.
You have to look at sockets and cores per socket. In this case you have 1 physical CPU socket which has 4 cores cores per socket. To get a complete picture you need to look at the number of threads per core, cores per socket and sockets.
If you multiply these numbers you will get the number of CPUs on your system. Well depends on what games your trying to play. For minesweeper yeah sure 2 cores is enough. But if talking about high end games like Battlefield or even games like Minecraft or Fortnite. To see the total amount of physical RAM installed, you can run sudo lshw -c memory which will show you each individual bank of RAM you have installed, as well as the total size for the System Memory.
The first line did not work for me. This works for me. Sergey Sergey 1, 19 19 silver badges 16 16 bronze badges. On mine, this returns the number of hyperthreads. I'd also need to know the number of physical cores and number of sockets. OK - the exact same command with hw.
Not sure yet about the socket count There's also a "logical" and "active" cpu count, but I'm not sure what that means. Quick update - this doesn't seem so portable. Six Six 4, 3 3 gold badges 23 23 silver badges 35 35 bronze badges. It is very simple. Just use this command: lscpu. You'd need to grep the output of this for CPU s :. Aman Manchanda Aman Manchanda 31 1 1 bronze badge. You just need cpu to be followed by at least one digit. Chaim Leib Halbert 1, 15 15 silver badges 21 21 bronze badges.
Chaim Geretz Chaim Geretz 4 4 silver badges 22 22 bronze badges. I did not see this one and wasted a bunch of time trying to come with my own.
I had the same idea because lscpu is not available on my system, but yours is simpler than mine stackoverflow. Would you mind explaining the grep -v part? In the first command you should use sort -u or sort uniq instead of uniq — Fravadona. Fravadona: You're right! Using just uniq will work since the list of cores will evaluate in order with hyperthreads generally having been added at the same time, but it might not be guaranteed…!
There's no guaranty indeed: I got one wrong result while testing the command on a few 4-socket servers; now all's good ;- — Fravadona. Gary Liggons Gary Liggons 11 1 1 bronze badge. Quicker, without fork This work with almsost all shell. Hauri F. Hauri 55k 14 14 gold badges 93 93 silver badges bronze badges. This post is linked to this answer to String contains in Bash! If it's okay that you can use Python, then numexpr module has a function for this: In [5]: import numexpr as ne In [6]: ne.
Is there a way make this work as a command in python? For example I tried python -m numexpr. MonsieurBeilto Please have a look at the updated answer!
Suraj Rao Srikant Patra Srikant Patra 2 2 silver badges 4 4 bronze badges. If you just want to count physical cores, this command did it for me. BUT, other than that, it works flawlessly : Here is a quick explanation of everything that is happening grep -B2 'core id' get only the lines we are interested i. Show 1 more comment. Gimps Gimps 2 2 bronze badges. Ruslan Ruslan 1, 2 2 gold badges 15 15 silver badges 26 26 bronze badges.
This will show the number of cores Online which can be different from the total number of cores.. Billal Begueradj Billal Begueradj 3, 9 9 gold badges 31 31 silver badges 50 50 bronze badges. This gives the number of CPUs, not the number of cores.
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