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A forum question that comes back every few months goes like this: "Why does gc.collect()…
How MicroPython’s Garbage Collector Survives on 256KB
A forum question that comes back every few months goes like this: “Why does gc.collect() take about the same time on my Pico whether the heap is almost.
Inside Pydantic v2’s Core: How pydantic-core Compiles Schemas to
Understand pydantic core schema compilation, the main trade-offs, and the practical checks to use before relying on it in practice.
Inside Hypothesis’s Shrinker: How Pareto Minimization Finds Smaller Failing Examples
By Riko Ishikawa When Hypothesis catches a property violation, the failing input you eventually see in the traceback is almost never the input the.
Inside Polars’ Streaming Engine: How Spillable Sinks Handle Larger-Than-RAM Joins
If you search polars streaming engine spill today, the top result is a benchmark that OOM’d on Polars 1.6.0 in September 2024.
Inside Polars’ Lazy Query Engine: How Predicate Pushdown Beats Pandas
The pola.rs blog has a headline number that every Polars tutorial copies: the optimized lazy plan runs roughly 4x faster than the naive one on the NYC.
Inside CPython Sub-Interpreters: How Immortal Objects Share Memory Without the GIL
The technical barrier that kept Python’s sub-interpreter feature from being genuinely useful for a decade wasn’t parallelism — it was reference counting.
Inside CPython’s obmalloc: How the Small Object Allocator Avoids the System Heap
Jump to: What exactly does obmalloc manage, and what falls through to system malloc? · How are arenas, pools, and blocks structured inside CPython?
Django 5.2 async ORM aprefetch_related() Hit N+1 With select_related
Event date: April 1, 2026 — django 5.2 Jump to Why does aprefetch_related() still fire N+1 queries under the async ORM?
Free-Threaded Python 3.13t: Measuring Contention With perf c2c
The first time you run a threaded dict.get loop on python3.13t and watch it scale at 1.3x on 8 cores instead of 7x, the instinct is to blame Python.
Litestar Cut Our P99 Latency 40% After Migrating From FastAPI
In this article Why does Litestar handle tail latency better than FastAPI? What makes serialization the biggest bottleneck?