Cpufreq Support

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powerd: no cpufreq(4) support -- aborting: No such file or ...

    https://forums.freebsd.org/threads/powerd-no-cpufreq-4-support-aborting-no-such-file-or-directory.67002/
    Aug 03, 2018 · # kldstat grep cpufreq 10 1 0xffffffff8163f000 6cc0 cpufreq.ko I worked through the handbook and manpages, searched elsewhere still being stuck to solve this. The question is, if there is some other power-management for this system or what is wrong with that setup.

S3C24XX CPUfreq support — The Linux Kernel documentation

    https://www.kernel.org/doc/html/v5.3/arm/samsung-s3c24xx/cpufreq.html
    The S3C24XX series support a number of power saving systems, such as the ability to change the core, memory and peripheral operating frequencies. The core control is exported via the CPUFreq driver which has a number of different manual or automatic controls over the rate the core is running at.

CPU frequency scaling in Linux with cpufreq

    https://www.pantz.org/software/cpufreq/usingcpufreqonlinux.html
    Enable support in your BIOS. Enter your BIOS and make sure Cool'n'Quiet (AMD) or SpeedStep (Intel) is enabled for you CPU. Some BIOS's may not have an option for either. If you don't find the option it is probably enabled by default. ... sudo modprobe cpufreq_conservative cpufreq_ondemand cpufreq_powersave cpufreq_stats cpufreq_userspace freq_table

Ubuntu: cpufreq support for AMD 5350 on ubuntu 17.04 ...

    https://www.youtube.com/watch?v=vidLeVoIDp4
    Jan 04, 2020 · Ubuntu: cpufreq support for AMD 5350 on ubuntu 17.04? Roel Van de Paar. Loading... Unsubscribe from Roel Van de Paar? Cancel Unsubscribe. Working... Subscribe Subscribed Unsubscribe 420. LoadingAuthor: Roel Van de Paar

CPUfreq · MaixPy DOC

    https://maixpy.sipeed.com/en/libs/machine_vision/cpufreq.html
    Since kpu is the rate obtained by dividing by pll1 and the current pll1 frequency is fixed at 400M, it is currently unable to support any frequency. Cpu theoretically supports arbitrary frequencies, but it will be biased according to the actual hardware. import cpufreq kpu_freqlist = cpufreq.get_kpu_supported_frequencies() 1.3. Parameters. no

AMD Posts New CPUFreq Driver For CPPC Support With Zen 2 ...

    https://www.phoronix.com/scan.php?page=news_item&px=AMD-New-CPUFreq-CPPC
    Jul 10, 2019 · This amd_cpufreq driver exposes more knobs than what is supported by the existing Linux kernel's acpi_cppc driver. That existing kernel CPPC code has largely been focused on Arm's support for this functionality while it's great with Zen 2 there is now the support on the AMD front. Once this code is mainlined it should provide for interesting tests.

3.2.2. CPUfreq Setup Red Hat Enterprise Linux 6 Red Hat ...

    https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/power_management_guide/cpufreq_setup
    When choosing an appropriate CPUfreq driver, always choose acpi-cpufreq over p4-clockmod.While using the p4-clockmod driver reduces the clock frequency of a CPU, it does not reduce the voltage.acpi-cpufreq, on the other hand, reduces voltage along with CPU clock frequency, allowing less power consumption and heat output for each unit reduction in performance.

Eventually "Schedutil" Could Replace Linux's Existing CPU ...

    https://www.phoronix.com/scan.php?page=news_item&px=CPUFreq-Schedutil-Future-Maybe
    Sep 04, 2019 · Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics.

Cpufreq - linux-sunxi.org

    https://linux-sunxi.org/Cpufreq
    There was no directory cpufreq and the tools didn't work. The solution to this problem was the driver axp20x-i2c . It wasn't loaded, and in my case I had not build the module at all.

3.2. CPUfreq Red Hat Enterprise Linux 7 Red Hat Customer ...

    https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/power_management_guide/cpufreq_governors
    One of the most effective ways to reduce power consumption and heat output on your system is CPUfreq. CPUfreq — also referred to as CPU speed scaling — is the infrastructure in the Linux kernel that enables to scale the CPU frequency in order to save power.



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