Python
4 posts

I Rewrote Our Python Data Pipeline in Rust: 3 Hours to 4 Minutes, 40x Faster
A real-world case study of rewriting a Python data pipeline with Rust + DuckDB. From 3-hour daily ETL jobs to 4-minute runs, memory usage dropped from 12GB to 600MB, and server costs cut by two-thirds.
January 8, 2026 · 7 min · 1299 words · Rex

Rust Performance Pitfalls: When Rust Runs Slower Than Python
Rust performance optimization in practice: I watched my Rust rewrite get crushed by Python. The problem was data structure choice.
December 30, 2025 · 6 min · 1075 words · Dream Beast Programming

Python Finally Got Fast: JIT Compiler Makes Code Performance Take Off
Python 3.15 introduces a native JIT compiler that delivers 20% performance improvements without changing a single line of code. Here’s how to enable this experimental feature.
December 20, 2025 · 5 min · 905 words · Rex AI Programming

CPU-GPU Overlap Inference Starter Guide: Cut 30% Wait Time with Python
Clarify the CPU/GPU split in PyTorch inference and walk through overlapping techniques that slash latency.
September 15, 2025 · 5 min · 956 words · Rexai Programming