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"Clean" Code, Horrible Performance

Molly Rocket · commentary · Watch on YouTube

Software performance & optimizationSoftware architecture & design

What it is

Casey Muratori shows how typical 'clean code' object-oriented patterns can cost large factors in performance. He benchmarks them against simpler data-oriented code.

Why Hacker News recommends it

A frequent citation in debates about SOLID and Clean Code, representing the performance-first side of the argument.

  • 3 people recommended it
  • 5 different months
  • 0 strong recommendations
  • first 2023, last 2026

What HN commenters said

  1. “Casey Muratori has a number of talks well worth listening to”

    Talks by Casey Muratori on data-oriented design

    GuestHNUser, 2023-11 · Recommendation · in “Ask HN: Learning new coding patterns – how to start?”

  2. “Look at Casey Murrey's Clean Code horrible performance youtube video”

    Shows clean code hurting performance and readability

    xiphias2, 2024-08 · Recommendation · in “Ask HN: What books should I read to improve as a software engineer?”

  3. “You may enjoy”

    Casey Muratori on clean code costs

    latexr, 2025-03 · Recommendation · in “Ask HN: Is Clean Code a waste of time?”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: casey muratori, clean code, solid, data-oriented design, optimization

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