Sub-optimal Pi Zero W overclock settings

[jasaw]

On a Pi Zero W, the overclock settings is slower than the factory default frequencies.
This is the current motionEye(OS) Pi Zero overclock settings:

arm_freq=1000
gpu_freq=300
sdram_freq=450
over_voltage=6

Everything is good except the gpu_freq underclocks the core_freq on a Pi Zero W.

gpu_freq

Sets core_freq, h264_freq, isp_freq, and v3d_freq together. On Pi 1/Pi 2 the default value is 250 for all items, on Pi 3/Pi Zero /Pi Zero W core_freq defaults to 400 and h264_freq, isp_freq and v3d_freq default to 300.

core_freq

Frequency of the GPU processor core in MHz. It has an impact on CPU performance because it drives the L2 cache and memory bus. The default value is 250 for the Pi 1/Pi 2 and 400 for the Pi 3 and Pi Zero and Pi Zero W. Note that the L2 cache benefits only the Pi Zero/Pi Zero W and Pi 1, but there is a small benefit for SDRAM on the Pi 2/Pi 3.

Full documentation here.

What would be nice is to have the "None" overclock option remove all the arm_freq, gpu_freq, sdram_freq, and over_voltage lines from /boot/config.txt, rather than setting them to some predefined values.

[ccrisan]

Yeap, the best thing to do with "None" is to leave the fields unset. I'll take care of this.

[ccrisan]

Fixed via c06442c.

[timdonovanuk]

Surely this is still an issue? This issue was not just about resetting "none" back to optimal settings for the PiZero, it was the fact that the overclocking option "PiZero" is incorrect. It sets the PiZero to 1000/300/450/6 but the "300" setting is lower than the default of "400" that the PiZero ships with.