8 Ways to Check CPU Clock Speed on Linux


    check cpu clock speed on linux

    A CPU clock pace determines how briskly your CPU can course of directions each second. It measures the variety of cycles your CPU can execute, measured in GHz or Mhz. As it’s exhausting to extend clock pace past a restrict, multi-core processors have been launched.

    In Linux to verify CPU pace, it’s important to get processor particulars and there are completely different instruments out there to fetch CPU info.

    1. Utilizing lscpu

    Lscpu is a command utilized in Linux to show details about the CPU structure. This command is part of the util-linux package deal.

    Run lscpu command and the ‘CPU MHz’ discipline reveals the CPU pace:

    $ sudo lscpu
    Structure: x86_64
    CPU op-mode(s): 32-bit, 64-bit
    Byte Order: Little Endian
    CPU(s): 1
    On-line CPU(s) checklist: 0
    Thread(s) per core: 1
    Core(s) per socket: 1
    Socket(s): 1
    NUMA node(s): 1
    Vendor ID: AuthenticAMD
    CPU household: 23
    Mannequin: 1
    Mannequin identify: AMD EPYC 7601 32-Core Processor
    Stepping: 2
    CPU MHz: 2199.998
    BogoMIPS: 4401.32
    Hypervisor vendor: KVM
    Virtualization sort: full
    L1d cache: 64Okay
    L1i cache: 64Okay
    L2 cache: 512Okay
    L3 cache: 16384Okay
    NUMA node0 CPU(s): 0

    2. Utilizing Dmesg

    Dmesg is a command utilized in Linux to show messages from the kernel ring buffer and dumped to /var/log/messages.

    We will filter Dmesg output utilizing grep command, to seek out cpu pace:

    $ sudo dmesg | grep MHz
    [ 0.000018] tsc: Detected 2127.998 MHz processor

    3. From /proc/cpuinfo file

    The /proc/cpuinfo system file offers the person pace for every CPU Core.system.

    $ cat /proc/cpuinfo | grep MHz
    cpu MHz : 2127.998

    4. Utilizing i7z

    The i7z is a devoted instrument for intel i3, i5, and i7 primarily based CPUs to show processor states.

    Run ‘sudo i7z’ command to offers the next output:

    Cpu pace from cpuinfo 2128.00Mhz
    cpuinfo is perhaps improper if cpufreq is enabled. To guess appropriately attempt estimating through tsc
    Linux’s inbuilt cpu_khz code emulated now
    True Frequency (with out accounting Turbo) 2128 MHz

    5. Utilizing hwinfo

    Hwinfo command is utilized in Linux to print detailed details about every {hardware} machine.

    Run the next command to get CPU pace:

    $ sudo hwinfo –cpu

    The next snapshot reveals the output of the above command.

    $ sudo hwinfo –cpu
    01: None 00.0: 10103 CPU
    [Created at cpu.465]
    Distinctive ID: rdCR.j8NaKXDZtZ6
    {Hardware} Class: cpu
    Arch: X86-64
    Vendor: “GenuineIntel”
    Mannequin: 6.37.2 “Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz”
    Clock: 2125 MHz
    BogoMips: 4255.99

    6. Utilizing auto-cpufreq

    Auto-cpufreq is a contemporary instrument to robotically optimize CPU pace & energy on the Linux platform. It actively displays the laptop computer’s battery state, CPU utilization, and system load for CPU pace and energy optimization.

    $ sudo auto-cpufreq –monitor

    Linux distro: UNKNOWN distro UNKNOWN model
    Linux kernel: 4.4.0-21-generic

    Procesor: Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz
    Cores: 4
    Structure: x86_64
    Driver: acpi-cpufreq

    —————————— Present CPU states ——————————

    CPU max frequency: 2133 MHz
    CPU min frequency: 933 MHz

    Utilization Temperature Frequency
    CPU0: 2.0% nan °C 933 MHzCPU1: 0.0% nan °C 1599 MHzCPU2: 1.0% nan °C 933 MHzCPU3: 0.0% nan °C 933 MHz

    —————————- CPU frequency scaling —————————-

    Battery is: discharging

    At present utilizing: ondemand governor
    Suggesting use of “powersave” governor

    Whole CPU utilization: 1.5 %
    Whole system load: 0.06

    Load optimum, suggesting to set turbo increase: off
    Warning: CPU turbo just isn’t out there
    At present turbo increase is: off


    “auto-cpufreq” refresh in: 5^C

    7. Utilizing dmidecode

    Dmidecode is a command utilized in Linux to offers detailed details about the system’s {hardware} parts reminiscent of Processor, DIMMs, BIOS, and so forth in a human-readable format.

    To print cpu pace, run:

    $ sudo dmidecode -t processor | grep “Velocity”
    Max Velocity: 5200 MHz
    Present Velocity: 2666 MHz

    8. Utilizing Inxi script

    Inxi is a featured wealthy and highly effective script to print the system’s {hardware} info in Linux.

    Run inxi command with ‘-C’ choice to print the processor associated info:

    $ sudo inxi -C
    CPU: Topology: Single Core mannequin: Intel Core i3 M 330 bits: 64 sort:
    MCP L2 cache: 3072 KiB Velocity: 2128 MHz min/max: N/A Core pace (MHz): 1: 2128


    On this article, we explored completely different instructions to get the CPU pace info on Linux OS. Please present your suggestions within the beneath remark part.

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