OrangePi Zero + Octoprint memory issues

Problem

I’ve been using my Orange pi Zero 256MB for octoprint since the very begining. It has 4 cores, that is more then enough to drive Octoprint.

However during re-installation or adding of python packages system goes down with 100% of memory, then swap, then CPU.

I’ve noticed this behaviour with:

• Pandas (dependency for Bed Visualizer)
• Numpy (depenency for Octoprint-Stats)

Solution

One of the solution is to temporary increase swap size for the installation:

sudo fallocate -l 1G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

this would create 1GB temporary swap file that can be used during installation. You can remove it after reboot.

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