Linux command cpuinfo7/13/2023 ![]() SSE Streaming SIMD Extensions instruction set Model 7 - Pentium III/Pentium III Xeon - external L2 cacheĮxtended brand string: "Intel(R) Core(TM)2 Quad CPU Q8400 2.66GHz"ĪPIC On-chip Advanced Programmable Interrupt Controller present and enabledĬMOV Conditional Move and Compare InstructionsįXSR Fast FP/MMX Streaming SIMD Extensions save/restore The program can be installed with apt on ubuntu $ sudo apt-get install cpuid The cpuid command fetches CPUID information about Intel and AMD x86 processors. Version: Intel(R) Core(TM)2 Quad CPU Q8400 2.66GHz Signature: Type 0, Family 6, Model 23, Stepping 10ĬMOV (Conditional move instruction supported)įXSR (FXSAVE and FXSTOR instructions supported) The dmidecode command displays some information about the cpu, which includes the socket type, vendor name and various flags. ![]() Note that the number of processing units might not always be the same as number of cores. The nproc command just prints out the number of processing units available. However it is not possible to deduce the number of cores on the processor from the above output. The vendor, model and speed of the processor are being shown correctly. Product: Intel(R) Core(TM)2 Quad CPU Q8400 2.66GHzīus info: Intel(R) Core(TM)2 Quad CPU Q8400 2.66GHzĬapabilities: 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 x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dtherm tpr_shadow vnmi flexpriority cpufreq lshw by default shows information about various hardware parts, and the ‘-class’ option can be used to pickup information about a specific hardware part. The lshw command can display limited information about the cpu. Hardinfo also performs a few benchmark tests taking a few minutes before the report is displayed. The report can also be written to a text file. The cpu information is towards the beginning of the report. It would produce a large report about many hardware parts, by reading files from the /proc directory. But it can also run from the command line only if there is no gui display available. Hardinfo is a gtk based gui tool that generates reports about various hardware components. It would simply print the cpu hardware details in a user-friendly format. Lscpu is a small and quick command that does not need any options. This indicates that there are 4 actual cores. To get the actual number of cores, check the core id for unique values $ cat /proc/cpuinfo | grep 'core id' For example a processor with 2 cores and hyperthreading would be reported as a processor with 4 cores. ![]() To count the number of processing units use grep with wc $ cat /proc/cpuinfo | grep processor | wc -lĤ The number of processors shown by /proc/cpuinfo might not be the actual number of cores on the processor. Model name : Intel(R) Core(TM)2 Quad CPU Q8400 2.66GHzįlags : 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 lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dtherm tpr_shadow vnmi flexpriorityĪddress sizes : 36 bits physical, 48 bits virtualĮvery processor or core is listed separately the various details about speed, cache size and model name are included in the description. The /proc/cpuinfo file contains details about individual cpu cores. There are quite a few commands on linux to get those details about the cpu hardware, and here is a brief about some of the commands. The “ lscpu” (list CPU) command utility is used to obtain details about the CPU architecture.The cpu information includes details about the processor, like the architecture, vendor name, model, number of cores, speed of each core etc. Additional Method: Using GNOME System Monitor.The following methods are enlightened in this post: This article will discuss several methods to find the CPU information using the Command Line. The CPU processor plays a vital role in measuring the overall system’s performance. ![]() The CPU information allows us to manage the running processes in the system and provides information about the type & speed of the CPU.įor debugging hardware-related issues, the CPU information helps to understand these problems from the Command Line utility. The CPU (Central Processing Unit) is the main processing part of the system that performs the data processing operations and also called the brain of the system.
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