Signature: Type 0, Family 6, Model 69, Stepping 1ĥ. Shows Linux Hardware Information # dmidecode 3.0 The SMBIOS specification defines various DMI types, for CPU, use “processor” as follows: $ sudo dmidecode -type processor ![]() It dumps a computer’s DMI (a.k.a SMBIOS) table contents in a human-readable format for easy retrieval. dmidecode Command – Shows Linux Hardware Infoĭmidecode is a tool for retrieving hardware information of any Linux system. (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), 22nmĤ. $ cpuidįamily = Intel Pentium Pro/II/III/Celeron/Core/Core 2/Atom, AMD Athlon/Duron, Cyrix M2, VIA C3 (6) Once installed, run cpuid to collect information concerning the x86 CPU. $ sudo yum install cpuid #RHEL/CentOS systems $ sudo apt install cpuid #Debian/Ubuntu systems Make sure to install it before running it. The command cpuid dumps complete information about the CPU(s) collected from the CPUID instruction, and also discover the exact model of x86 CPU(s) from that information. Model name: Intel(R) Core(TM) i5-4210U CPU 1.70GHzįlags: 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 Linux CPU Architecture Architecture: x86_64 lscpu Command – Shows CPU Architecture Info Suggested Read: How to Use ‘cat’ and ‘tac’ Commands with Examples in Linux 2. $ cat /proc/cpuinfo | grep 'core id' #show individual cores $ cat /proc/cpuinfo | grep processor | wc -l #count the number of processing units $ cat /proc/cpuinfo | grep 'model name' | uniq #display model name This can help you only output vendor name, model name, number of processors, number of cores, etc: $ cat /proc/cpuinfo | grep 'vendor' | uniq #view vendor name To get a little specific, you can employ the grep command – a CLI tool for searching plain-text data for lines matching a regular expression. ![]() To check the current clock dmidecode | grep "Current Speed" should do the trick.Īnother thing that could impact the performance of your processor is the cpu governor you are using.Model name : Intel(R) Core(TM) i5-4210U CPU 1.70GHzįlags : 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 ptsĪddress sizes : 39 bits physical, 48 bits virtual If you want to check your processor max clock, just type cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq. Hardware : HiKey Development Board is self explanatory.CPU revision: Indicates patch release or "minor revision".CPU variant : Indicates the variant number of the processor, or "major revision".CPU architecture: AArch64 means 64 bit ARM board:.WARN_TAINT_ONCE(diff, TAINT_CPU_OUT_OF_SPEC, * Mismatched CPU features are a recipe for disaster. Features are evaluated by cpuinfo code, and only show if all cores support them /* All Serialized cores are shown in list with line breaks instead of separated processors. This is the expected output to Arm based processors. Processor : AArch64 Processor rev 3 (aarch64)įeatures : fp asimd evtstrm aes pmull sha1 sha2 crc32 It does not look quite right to me because I used to seeing cpu information present for each core (something like shown in Number of processors in /proc/cpuinfo).ĭoes the output of /proc/cpuinfo indicate a problem with the board or its configuration? Or is this output expected with some dev boards?ĪRM Cortex A53 (octa-core): $ cat /proc/cpuinfo I also noticed a cat of /proc/cpuinfo is returning something that does not look quite right, but I'm not sure if its cause for concern. I observed the self tests are running a little slower than expected, so I'm mildly investigating it. Linux hikey 3.18.0-linaro-hikey #1 SMP PREEMPT Mon Nov 30 00:11: The board provides two Cortex-A53 processors, provides eight cores, and uses Linaro Linux: $ uname -a I purchased it for testing a couple of libraries on ARM64 cpu architecture. ![]() I have a LeMaker HiKey development board.
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