{"id":13810,"date":"2019-04-06T09:29:34","date_gmt":"2019-04-06T09:29:34","guid":{"rendered":"http:\/\/www.appservgrid.com\/paw92\/?p=13810"},"modified":"2019-04-06T09:29:34","modified_gmt":"2019-04-06T09:29:34","slug":"9-useful-commands-to-get-cpu-information-on-linux","status":"publish","type":"post","link":"https:\/\/www.appservgrid.com\/paw92\/index.php\/2019\/04\/06\/9-useful-commands-to-get-cpu-information-on-linux\/","title":{"rendered":"9 Useful Commands to Get CPU Information on Linux"},"content":{"rendered":"

In a previous article, we put together a list of\u00a010 useful commands to collect system and hardware information in Linux<\/a>. In this guide, we will narrow down to the CPU\/processor, and show you various ways of extracting detailed information about your machine CPU.<\/p>\n

Just to give you an overview, we will query information such as CPU architecture, vendor_id, model, model name, number of CPU cores, speed of each core and lots more.
\nEssentially, the\u00a0\/proc\/cpuinfo<\/strong>\u00a0contains this all info, every other command\/utility gets its output from this file.<\/p>\n

With that said, below are 9 commands for getting info about your Linux CPU.<\/p>\n

1. Get CPU Info Using cat Command<\/h3>\n

You can simply view the information of your system CPU by viewing the contents of the\u00a0\/proc\/cpuinfo<\/strong>\u00a0file with the help of\u00a0cat command<\/a>\u00a0as follows:<\/p>\n

$ cat \/proc\/cpuinfo\r\n<\/pre>\n
Linux CPU Information<\/div>\n
processor\t: 0\r\nvendor_id\t: GenuineIntel\r\ncpu family\t: 6\r\nmodel\t\t: 69\r\nmodel name\t: Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz\r\nstepping\t: 1\r\nmicrocode\t: 0x1c\r\ncpu MHz\t\t: 1700.062\r\ncache size\t: 3072 KB\r\nphysical id\t: 0\r\nsiblings\t: 4\r\ncore id\t\t: 0\r\ncpu cores\t: 2\r\napicid\t\t: 0\r\ninitial apicid\t: 0\r\nfpu\t\t: yes\r\nfpu_exception\t: yes\r\ncpuid level\t: 13\r\nwp\t\t: yes\r\nflags\t\t: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm epb tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt dtherm ida arat pln pts\r\nbugs\t\t:\r\nbogomips\t: 4788.92\r\nclflush size\t: 64\r\ncache_alignment\t: 64\r\naddress sizes\t: 39 bits physical, 48 bits virtual\r\npower management:\r\n......\r\n<\/pre>\n
To get a little specific, you can employ\u00a0grep command<\/a>\u00a0\u2013 a CLI tool for searching plain-text data for lines matching a regular expression. This can help you only output vendor name, model name, number of processors, number of cores etc:<\/p>\n
$ cat \/proc\/cpuinfo | grep 'vendor' | uniq\t\t#view vendor name\r\n$ cat \/proc\/cpuinfo | grep 'model name' | uniq\t\t#display model name\r\n$ cat \/proc\/cpuinfo | grep processor | wc -l\t\t#count the number of processing units\r\n$ cat \/proc\/cpuinfo | grep 'core id'\t\t\t#show individual cores\t\r\n<\/pre>\n
Suggested Read:<\/b>\u00a0How to Use \u2018cat\u2019 and \u2018tac\u2019 Commands with Examples in Linux<\/a><\/p>\n
2. lscpu Command \u2013 Shows CPU Architecture Info<\/h3>\n
The command\u00a0lscpu<\/strong>\u00a0prints CPU architecture information from\u00a0sysfs<\/strong>\u00a0and\u00a0\/proc\/cpuinfo<\/strong>\u00a0as shown below:<\/p>\n
$ lscpu\r\n<\/pre>\n
Linux CPU Architecture<\/div>\n
Architecture:          x86_64\r\nCPU op-mode(s):        32-bit, 64-bit\r\nByte Order:            Little Endian\r\nCPU(s):                4\r\nOn-line CPU(s) list:   0-3\r\nThread(s) per core:    2\r\nCore(s) per socket:    2\r\nSocket(s):             1\r\nNUMA node(s):          1\r\nVendor ID:             GenuineIntel\r\nCPU family:            6\r\nModel:                 69\r\nModel name:            Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz\r\nStepping:              1\r\nCPU MHz:               1303.687\r\nCPU max MHz:           2700.0000\r\nCPU min MHz:           800.0000\r\nBogoMIPS:              4788.92\r\nVirtualization:        VT-x\r\nL1d cache:             32K\r\nL1i cache:             32K\r\nL2 cache:              256K\r\nL3 cache:              3072K\r\nNUMA node0 CPU(s):     0-3\r\nFlags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm epb tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt dtherm ida arat pln pts\r\n<\/pre>\n
3. cpuid Command \u2013 Shows x86 CPU<\/h3>\n
The command\u00a0cpuid<\/strong>\u00a0dumps complete information about the CPU(s) collected from the CPUID instruction, and also discover the exact model of x86 CPU(s) from that information.<\/p>\n
Make sure to install it before running it.<\/p>\n
$ sudo apt install cpuid        #Debian\/Ubuntu systems\r\n$ sudo yum install cpuid\t#RHEL\/CentOS systems \r\n$ sudo dnf install cpuid\t#Fedora 22+ \r\n<\/pre>\n
Once installed, run\u00a0cpuid<\/strong>\u00a0to collect information concerning the x86 CPU.<\/p>\n
$ cpuid\r\n<\/pre>\n
Shows x86 CPU Information<\/div>\n
CPU 0:\r\n   vendor_id = \"GenuineIntel\"\r\n   version information (1\/eax):\r\n      processor type  = primary processor (0)\r\n      family          = Intel Pentium Pro\/II\/III\/Celeron\/Core\/Core 2\/Atom, AMD Athlon\/Duron, Cyrix M2, VIA C3 (6)\r\n      model           = 0x5 (5)\r\n      stepping id     = 0x1 (1)\r\n      extended family = 0x0 (0)\r\n      extended model  = 0x4 (4)\r\n      (simple synth)  = Intel Mobile Core i3-4000Y \/ Mobile Core i5-4000Y \/ Mobile Core i7-4000Y \/ Mobile Pentium 3500U\/3600U\/3500Y \/ Mobile Celeron 2900U (Mobile U\/Y) (Haswell), 22nm\r\n   miscellaneous (1\/ebx):\r\n      process local APIC physical ID = 0x0 (0)\r\n      cpu count                      = 0x10 (16)\r\n      CLFLUSH line size              = 0x8 (8)\r\n      brand index                    = 0x0 (0)\r\n   brand id = 0x00 (0): unknown\r\n   feature information (1\/edx):\r\n      x87 FPU on chip                        = true\r\n      virtual-8086 mode enhancement          = true\r\n      debugging extensions                   = true\r\n      page size extensions                   = true\r\n      time stamp counter                     = true\r\n      RDMSR and WRMSR support                = true\r\n      physical address extensions            = true\r\n....\r\n<\/pre>\n
4. dmidecode Command \u2013 Shows Linux Hardware Info<\/h3>\n
dmidecode<\/a>\u00a0is a tool for retrieving hardware information of any Linux system. It dumps a computer\u2019s DMI (a.k.a SMBIOS) table contents in a human-readable format for easy retrieval. The SMBIOS specification defines various DMI types, for CPU, use \u201cprocessor\u201d as follows:<\/p>\n
$ sudo dmidecode --type processor\r\n<\/pre>\n
Shows Linux Hardware Information<\/div>\n
# dmidecode 3.0\r\nGetting SMBIOS data from sysfs.\r\nSMBIOS 2.7 present.\r\n\r\nHandle 0x0004, DMI type 4, 42 bytes\r\nProcessor Information\r\n\tSocket Designation: U3E1\r\n\tType: Central Processor\r\n\tFamily: Core i5\r\n\tManufacturer: Intel(R) Corporation\r\n\tID: 51 06 04 00 FF FB EB BF\r\n\tSignature: Type 0, Family 6, Model 69, Stepping 1\r\n\tFlags:\r\n\t\tFPU (Floating-point unit on-chip)\r\n\t\tVME (Virtual mode extension)\r\n\t\tDE (Debugging extension)\r\n\t\tPSE (Page size extension)\r\n\t\tTSC (Time stamp counter)\r\n\t\tMSR (Model specific registers)\r\n\t\tPAE (Physical address extension)\r\n\t\tMCE (Machine check exception)\r\n\t\tCX8 (CMPXCHG8 instruction supported)\r\n\t\tAPIC (On-chip APIC hardware supported)\r\n\t\tSEP (Fast system call)\r\n\t\tMTRR (Memory type range registers)\r\n\t\tPGE (Page global enable)\r\n\t\tMCA (Machine check architecture)\r\n.....\r\n<\/pre>\n
5. Inxi Tool \u2013 Shows Linux System Information<\/h3>\n
Inxi<\/a>\u00a0is a powerful command line system information script intended for both console and IRC (Internet Relay Chat). You can use it to instantly retrieve hardware information.<\/p>\n
You can install like so:<\/p>\n
$ sudo apt install inxi \t#Debian\/Ubuntu systems\r\n$ sudo yum install inxi\t\t#RHEL\/CentOS systems \r\n$ sudo dnf install inxi\t\t#Fedora 22+ \r\n<\/pre>\n
To display complete CPU information, including per CPU clock-speed and CPU max speed (if available), use the\u00a0-C<\/code>\u00a0flag as follows:<\/p>\n
$ inxi -C\r\n<\/pre>\n
Print Linux System Information<\/div>\n
CPU:       Dual core Intel Core i5-4210U (-HT-MCP-) cache: 3072 KB \r\n           clock speeds: max: 2700 MHz 1: 1958 MHz 2: 1993 MHz 3: 1775 MHz 4: 1714 MHz\r\n\r\n<\/pre>\n
6. lshw Tool \u2013 List Hardware Configuration<\/h3>\n
lshw<\/strong>\u00a0is a minimal tool for gathering in-depth information on the hardware configuration of a computer. You can use the\u00a0-C<\/code>\u00a0option to select the hardware class, CPU in this case:<\/p>\n
$ sudo lshw -C CPU\r\n<\/pre>\n
Print Linux Hardware Configuration<\/div>\n
*-cpu                   \r\n       description: CPU\r\n       product: Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz\r\n       vendor: Intel Corp.\r\n       physical id: 4\r\n       bus info: cpu@0\r\n       version: Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz\r\n       serial: To Be Filled By O.E.M.\r\n       slot: U3E1\r\n       size: 2626MHz\r\n       capacity: 2700MHz\r\n       width: 64 bits\r\n       clock: 100MHz\r\n       capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm epb tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt dtherm ida arat pln pts cpufreq\r\n       configuration: cores=2 enabledcores=2 threads=4\r\n<\/pre>\n
7. hardinfo \u2013 Shows Hardware Info in GTK+ Window<\/h3>\n
hardinfo<\/strong>\u00a0displays hardware information in a GTK+ window, you can install it as follows:<\/p>\n
$ sudo apt install hardinfo \t#Debian\/Ubuntu systems\r\n$ sudo yum install hardinfo\t#RHEL\/CentOS systems \r\n$ sudo dnf install hardinfo\t#Fedora 22+ \r\n<\/pre>\n
Once you have it installed, type:<\/p>\n
$ hardinfo \r\n<\/pre>\n
\n
\"Linux<\/p>\n
Linux System Information<\/p>\n<\/div>\n
It also enables you to generate a system hardware info report by clicking on the \u201cGenerate Report<\/strong>\u201d button. From the interface below, click on \u201cGenerate<\/strong>\u201d to proceed. Note that you can choose the hardware info category to be generated.<\/p>\n
\n
\"Generate<\/p>\n
Generate System Information Report<\/p>\n<\/div>\n
Once you have generated the report in html format, you can view it from a web browser as shown below.<\/p>\n
\n
\"Linux<\/p>\n
Linux System Detailed Information<\/p>\n<\/div>\n
8. hwinfo \u2013 Shows Present Hardware Info<\/h3>\n
hwinfo<\/strong>\u00a0is used to extract info about hardware present in a Linux system. To display info about your CPU, use the\u00a0--cpu<\/code><\/p>\n
$ hwinfo --cpu\r\n<\/pre>\n
Print Present Hardware Information<\/div>\n
01: None 00.0: 10103 CPU                                        \r\n  [Created at cpu.460]\r\n  Unique ID: rdCR.j8NaKXDZtZ6\r\n  Hardware Class: cpu\r\n  Arch: X86-64\r\n  Vendor: \"GenuineIntel\"\r\n  Model: 6.69.1 \"Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz\"\r\n  Features: fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36,clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,tm,pbe,syscall,nx,pdpe1gb,rdtscp,lm,constant_tsc,arch_perfmon,pebs,bts,rep_good,nopl,xtopology,nonstop_tsc,aperfmperf,eagerfpu,pni,pclmulqdq,dtes64,monitor,ds_cpl,vmx,est,tm2,ssse3,sdbg,fma,cx16,xtpr,pdcm,pcid,sse4_1,sse4_2,movbe,popcnt,tsc_deadline_timer,aes,xsave,avx,f16c,rdrand,lahf_lm,abm,epb,tpr_shadow,vnmi,flexpriority,ept,vpid,fsgsbase,tsc_adjust,bmi1,avx2,smep,bmi2,erms,invpcid,xsaveopt,dtherm,ida,arat,pln,pts\r\n  Clock: 2080 MHz\r\n  BogoMips: 4788.92\r\n  Cache: 3072 kb\r\n  Units\/Processor: 16\r\n  Config Status: cfg=new, avail=yes, need=no, active=unknown\r\n....\r\n<\/pre>\n
9. nproc \u2013 Print Number of Processing Units<\/h3>\n
nproc<\/strong>\u00a0command is used to show the number of processing unit present on your computer:<\/p>\n
$ nproc\r\n<\/pre>\n
For additional usage info and options, read through the man pages of these commands like this:<\/p>\n
$ man commandname\r\n<\/pre>\n
Also check out:<\/p>\n
    \n
  1. \n
      \n
    1. Cpustat \u2013 Monitors CPU Utilization by Running Processes in Linux<\/a><\/li>\n
    2. CoreFreq \u2013 A Powerful CPU Monitoring Tool for Linux Systems<\/a><\/li>\n
    3. Find Top Running Processes by Highest Memory and CPU Usage in Linux<\/a><\/li>\n
    4. How to Impose High CPU Load and Stress Test on Linux Using \u2018Stress-ng\u2019 Tool<\/a><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
      That\u2019s it for now! You can share with us additional ways of extracting CPU information in Linux via the feedback form below.<\/p>\n
      Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
      In a previous article, we put together a list of\u00a010 useful commands to collect system and hardware information in Linux. In this guide, we will narrow down to the CPU\/processor, and show you various ways of extracting detailed information about your machine CPU. Just to give you an overview, we will query information such as … <\/p>\n
      Continue reading “9 Useful Commands to Get CPU Information on Linux”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-13810","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/13810","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/comments?post=13810"}],"version-history":[{"count":1,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/13810\/revisions"}],"predecessor-version":[{"id":13811,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/13810\/revisions\/13811"}],"wp:attachment":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/media?parent=13810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/categories?post=13810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/tags?post=13810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}