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@zouppen
zouppen / README.md
Last active February 4, 2026 19:06
Tool for extracting compression ratio and amount of compressed memory from zram swap partitions.

zraminfo

This is a simple tool for displaying memory information including compression ratio and percentage of compressed memory in Linux kernel using zram. This tool works without zram, but in that case it displays only basic memory statistics.

With LC_NUMERIC=en_GB.utf8 the output of ./zraminfo looks like this:

@rossant
rossant / raytracing.py
Last active July 29, 2026 03:07
Very simple ray tracing engine in (almost) pure Python. Depends on NumPy and Matplotlib. Diffuse and specular lighting, simple shadows, reflections, no refraction. Purely sequential algorithm, slow execution.
"""
MIT License
Copyright (c) 2017 Cyrille Rossant
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is