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ยฉ 2025 - 2026 Nat Welch. All rights reserved.

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Nelson Elhage

@nelson_elhage@robot.villas

Blog posts on systems, compilers, and performance.

Source: https://blog.nelhage.com/atom.xml

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Posts
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Posts

  • From error-handling to structured concurrency

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    Mar 23, 2026
  • Solving Regex Crosswords with Z3

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    Oct 21, 2025
  • The ITTAGE indirect branch predictor

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    Jul 4, 2025
  • Performance of the Python 3.14 tail-call interpreter

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    Mar 9, 2025
  • Building personal software with Claude

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    Jan 27, 2025
  • Finding near-duplicates with Jaccard similarity and MinHash

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    Jul 3, 2024
  • Stripe's monorepo developer environment

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    May 21, 2024
  • Performance engineering, profilers, and seeing the invisible

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    Dec 18, 2023
  • Advent of Code in C++ Template Metaprogramming

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    Dec 8, 2023
  • What's with ML software and pickles?

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    Nov 8, 2023
  • Graceful behavior at capacity

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    Aug 7, 2023
  • Efficiency trades off against resiliency

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    Apr 15, 2023
  • Transformers for software engineers

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    Apr 1, 2022
  • A Cursed Bug

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    Feb 23, 2022
  • Distributed cloud builds for everyone

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    May 31, 2021
  • Building LLVM in 90 seconds using Amazon Lambda

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    May 21, 2021
  • Some opinionated thoughts on SQL databases

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    Mar 30, 2021
  • Towards solving Ultimate Tic Tac Toe

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    Jul 15, 2020
  • Write testable code by writing generic code

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    Mar 12, 2020
  • Test suites as classifiers

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    Mar 1, 2020
  • Systems that defy detailed understanding

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    Feb 22, 2020
  • Computers can be understood

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    Feb 16, 2020
  • Reflections on software performance

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    Feb 3, 2020
  • Why the Sorbet typechecker is fast

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    Jan 24, 2020
  • Testing and feedback loops

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    Jan 19, 2020
  • Record/Replay testing in Sorbet

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    Jan 13, 2020
  • Two kinds of testing

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    Dec 24, 2019
  • The architecture of declarative configuration management

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    Nov 12, 2019
  • A Go/C Polyglot

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    Sep 5, 2019
  • Reader/reader blocking in reader/writer locks

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    May 7, 2019
  • My Apollo Bibliography

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    Apr 9, 2019
  • Three kinds of memory leaks

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    Apr 29, 2018
  • Property Testing Like AFL

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    Oct 24, 2017
  • Property-Based Testing Is Fuzzing

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    Oct 3, 2017
  • Disable Transparent Hugepages

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    Jul 10, 2017
  • Two Perspectives on the End-to-End Principle

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    Jun 11, 2017
  • Running Tensorflow on AWS GPUs

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    Feb 26, 2017
  • Thoughts On Kubernetes

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    Feb 19, 2017
  • Measuring Capacity Through Utilization

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    Jan 8, 2017
  • How I Write Tests

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    Dec 29, 2016
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