README.md

polars-talk-2024

Notebook and benchmarks for a 1 hour demo of Polars. Includes:

• polars.ipynb: Jupyter notebook with Polars examples
• data/: Data files used in the notebook
• polars_benchmarks.ipynb: Jupyter notebook for an interactive approach
• bench.py/r: Actual files used for presented results

Some very ungeneralizable/simple benchmarks:

• read_parquet: 2M rows < 10 columns (R used the arrow package)
• group by: simple mean and sum vs. a 'lambda' function using the mean and sum
• joins: very small subsets of the 2M row dataset (10k vs. 4k)

All runs were executed by running python bench.py or Rscript bench.R in the terminal. Both are included in the repo. The results are shown below. The data used in the benchmark is created with data/data_setup.r and is not in the repo.