Beta Test emonSD-13Jun18 Stretch Image on Raspberry Pi 2B

[Bill.Thomson]

@jfree23

I think the arm_freq entries in the config.txt are mostly for overclocking

Correct. Normally nothing need be done to get a Pi to use the correct clock speed.
You might want to have a look at this:

Getting more performance from an RPi 2

According to the article, “out-of-the-box” RPi 2 performance isn’t quite what it should be. From the Debian wiki: (https://wiki.debian.org/RaspberryPi) Overclocking Pi 2 Overclocking is quite easy and convenient, and doesn’t invalidate your warranty if you don’t change voltage. It happens that the actual L2 speed of the Raspberry Pi 2 is severelly underclocked, making the device much more slower that it should actually be. There has been reports of users using overclocked speeds of the proce…