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Plenary: Performance Matters - Emery Berger - CppCon 2020

Emery Berger's CppCon 2020 plenary on why performance is hard on modern hardware after the end of Dennard scaling. It covers benchmarking pitfalls and introduces new profiling tools for finding real bottlenecks.

Why HN readers recommended it

Recommended for treating benchmarking and profiling scientifically rather than by myth, with innovative tools.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
CppCon
Topic
performance measurement
Format
talk
Level
intermediate
HN recommenders in dataset
2
HN mentions in dataset
3
Recommendation years in dataset
2021–2022

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • This guy has had a few talks at CppCon over the years, and covers the basics of how to attempt benchmarking with actual computer science instead of myth and voodoo rituals: [VIDEO] In practice, it's not critical to go that far. In my experience, huge …

    jiggawatts on Hacker News · 2021-06
    In Beware of Tight Feedback Loops (2020)
  • The term you're looking for might be "abstraction penalty". For tools that can identify where the bottlenecks are, I recommend watching Emery Berger's talk "Performance Matters" from CppCon 2020 (either of the two links below should work). He introduces some innovative new profiling tools for …

    captaincrowbar on Hacker News · 2022-01
    In Finding your home in game graphics programming

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.

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