Cpuinfo ubuntu3/11/2023 ![]() Inxi is one of my all time favorite command line tools and I have it running on all my Linux systems. ![]() If you’re looking for information about other hardware aspects too like memory, harddrive, controllers, then I suggest you go with the -short option.ħ. Product: Intel(R) Core(TM)2 Quad CPU Q9400 2.66GHzĬapabilities: 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 constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dtherm tpr_shadow vnmi flexpriority cpufreqĬonfiguration: cores=4 enabledcores=4 threads=4 lshw (short for list hardware) is another great utility if you’re looking for details on the CPU. I cannot recommend hardinfo strongly enough.Ħ. Besides the CPU, it provides details on most aspects of the Linux box including memory, storage, PCI devices, storage, USB devices etc plus information on the OS, kernel, and networking.Īn extremely handy tool, hardinfo also lets you quickly generate a HTML report that you can save to your machine. If you ask me, hardinfo is an embarras de richesses. If hardinfo is not installed on your Linux box, you can do so with the following command on your Ubuntu system. Hardinfo is another handy utility that provides a wealth of information about your Linux system.Īlthough installed on the command line, hardinfo is actually a GTK based GUI utility. Not the latest and greatest of processors but adequate for most users.ĥ. Voila, your PC runs on a Core 2 Quad core Q9400 processor at 2.66GHz. Model name : Intel(R) Core(TM)2 Quad CPU Q9400 2.66GHz ![]() $ cat /proc/cpuinfo | grep 'model name' | uniq Now that we have the vendor info (above) let’s dig into details of the Intel processor. The output spits out just the vendor name, nothing more.Ĥ. If you’re interested in just knowing the CPU vendor, go with cat /proc/cpuinfo along with with the grep command. In the following two examples, we’ll tweak /proc/cpuinfo to get only the information we need.ģ. Use it with the less prefix since the output is big and quickly vanishes beyond the top of the screen.Īs with the previous command, we see that the output of /proc/cpuinfo provides information about the processor, vendor, cores and frequency. Another favorite of system administrators is /proc/cpuinfo. Let’s start with lscpu, a favorite of both users and system administrators.Ī quick glance at the above output tells us that our Linux box has an Intel, quad-core, 64-bit processor running at 2000MHz.Ģ. We’ll dig down for information on the CPU vendor, check if it’s 32-bit or 64-bit, look for the number of cores, frequency, cache size and more.ġ. In this post, we’ll take a look at a bunch of commands that provide details about the CPU inside a Linux computer. Which of these is correct? Which do I believe? Aside from the BIOS changes, is there any way to guarantee maximum performance mode? For what it's worth, this is Ubuntu 12.04, with this kernel: Linux host 3.2.The command line interface is so versatile that you can find considerable information about even the hardware side of your Linux server or desktop. Model name : Intel(R) Xeon(R) CPU E5-2660 0 2.20GHz However, if I just look in /proc/cpuinfo, the value there is consistently ~2.2 egrep 'MHz|Xeon' /proc/cpuinfo cpufreq-info -c 0 Note that the min speed shows "2.00 GHz", and the governor is set to "performance", yet the current CPU frequency is 1.20 GHz. ![]() cpufreq-info -c 0Ĭpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009ĬPUs which run at the same hardware frequency: 0ĬPUs which need to have their frequency coordinated by software: 0Īvailable frequency steps: 2.20 GHz, 2.20 GHz, 2.10 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHzĪvailable cpufreq governors: conservative, ondemand, userspace, powersave, performanceĬurrent policy: frequency should be within 2.00 GHz and 2.20 GHz. I've tried a few strategies (aside from rebooting and changing the setting in the bios, which I would have to do for a few hundred servers) but I'm getting weird results from cpufreq-info. I have a server and I want to ensure it's always running at maximum speed, never in energy-saving mode. ![]()
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