HEADS-UP: low CPU frequency issue

[metalefty]

Raspberry Pi image <= 20240604 has an issue that CPU frequency is locked at the lowest frequency within available frequency steps, @600MHz/Pi 4, @1500MHz/Pi 5. This issue will be fixed in the next RPi image release.

Here I leave a workaround until next release, edit /boot/cmdline.txt as follows to maximize CPU frequency:

-console=ttyAMA0,115200 console=tty1 root=PARTUUID=33d90048-02 rootfstype=ext4 rootwait
+console=ttyAMA0,115200 console=tty1 root=PARTUUID=33d90048-02 rootfstype=ext4 rootwait cpufreq.default_governor=performance

If you're using Pi 4 or Pi 400, you can boost CPU frequency +300MHz by adding the following to /boot/config.txt. See Raspberry Pi Documentation for detail.

[pi4]
arm_boost=1

New RPi image that will be released soon will not require these workaround.

[metalefty]

Keep open until we release new images

[metalefty]

New images have been released.