#Cpuinfo linux install
$ sudo apt-get install -y linux-tools-$(uname -r) The kernel support can be enabled/disabled using the /sys/devices/system/cpu/cpufreq/boost file. You can disable the Turbo Boost using the BIOS or some Linux options/commands. On Linux systems various information about the CPU ( or CPUs ) in the computer can be gleaned from /proc/cpuinfo. Here, the CPU will be at the nominal/minimal value (1.20Ghz) all the time. Note the difference when you run the same command with Turbo Boost disabled: In the boost state support section, the values for Supported and Active are no. You may find the technical information of these frequencies at the Intel website. Note that the information states the hardware limits ( 1.20 GHz - 3.47 GHz), the possible frequencies ( 3.47 GHz, 3.33 GHz, 2.53 GHz, 1.87 GHz, 1.20 GHz) and the current frequency ( 1.87 GHz). $ cpupower frequency-infoĬPUs which run at the same hardware frequency: 0ĬPUs which need to have their frequency coordinated by software: 0Īvailable frequency steps: 3.47 GHz, 3.33 GHz, 2.53 GHz, 1.87 GHz, 1.20 GHzĪvailable cpufreq governors: conservative, ondemand, userspace, powersave, performanceĬurrent policy: frequency should be within 1.20 GHz and 3.47 GHz. For instance, for an old Intel Core i5-660 with Turbo Boost enabled, you will get the following. Preface: The problem with the /proc/cpuinfo-based answers is that they parse information that was meant for human consumption and thus lacks a stable format designed for machine parsing: the output format can differ across platforms and runtime conditions using lscpu -p on Linux (and sysctl on macOS) bypasses that problem. If commands like lscpu, dmidecode can show you the amount of CPUs, Cores and threads/siblings for each, then the issue is with how cpuinfo handles the information.
To determine if the Turbo Boost is activated and which is the current frequency, you can use cpupower frequency-info. This might be do to how cpuinfo shows this for AMD or that specific family model. If Turbo Boost is enabled and all the cores are working, the CPU will work at 2.10GHz.When Turbo Boost is enabled and only one of the cores is working, the CPU will work at a maximum of 3.30GHz. Get CPU info with lscpu command lscpu command output explanation Other commands to check CPU information in Linux 1.If you disable the Turbo Boost (in the BIOS setup menu), the CPU will work at 2.10GHz all the time. Using lscpu Command Uisng /proc/cpuinfo File Using cpuid Command Using dmidecode Command Using Inxi Tool Using lshw Tool Using top or htop Command Using.The cpuinfo utility prints out the processor architecture information that can be used to define. It has a base frequency of 2.10GHz and a Max Turbo Frequency of 3.30GHz. Intel MPI Library Developer Reference for Linux OS. The Intel Core i7-4600U Processor supports Turbo Boost technology.
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