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ExtremeGTX/RPi_3B_1GHz.md

Last active November 10, 2019 21:00
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RPi_3B_1GHz.md

Set Max CPU freq to 1GHz

add to config.txt arm_freq value sudo vi /boot/firmware/config.txt

arm_freq=1000

Check CPU Speed current, minimum, maximum:

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq # Current Speed
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq # Minimum Speed
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq # Maximum Speed

Get Avaialble scaling governers:

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
> conservative ondemand userspace powersave performance schedutil

Set scaling governer:

Note: sudo echo will not work, you need to make sudo -s or sudo sh -c

Will use performance to make CPU Speed always set to 1GHz instead of changing between 600MHz and 1GHz depending on the load.

sudo sh -c "echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
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