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Software Performance & Optimization Videos Hacker News Recommends

Software performance & optimization videos on HackerTube: the talks, lectures and explainers Hacker News commenters keep sharing, covering profiling, benchmarks, cache efficiency, software bloat, latency, low-level optimization, SIMD, Casey Muratori, Handmade Hero, why software is slow.

115 videos · ranked by HN recommendations · showing 1–48

Most recommended software performance & optimization videos

The ones HN returns to most often when a thread turns to this topic.

talk#7

How Python was Shaped by leaky Internals, Armin Ronacher, Flask framework

Видео с мероприятий {speach!

“This excellent talk describes how the semantics of the "add" operation are much more complex than generally described.”

15 HN recommenders · 2017–2025

talk#41

CppCon 2015: Andrei Alexandrescu “std::allocator...”

CppCon

“It really opened my eyes to how one could very elegantly make a very complex and high-performance heap allocator”

7 HN recommenders · 2017–2025

talk#97

Preventing the Collapse of Civilization / Jonathan Blow (Thekla, Inc)

DevGAMM

“Anyone who finds this concept interesting to think about and hasn't seen this video may enjoy it”

14 HN recommenders · 2020–2025

talk#102

"Performance Matters" by Emery Berger

Strange Loop Conference

“this is the most amazing optimisation information I have seen”

12 HN recommenders · 2019–2025

talk#123

The Thirty Million Line Problem

Molly Rocket

“The video is long, but it's worth watching all of it.”

11 HN recommenders · 2018–2024

talk#124

CppCon 2017: Matt Kulukundis “Designing a Fast, Efficient, Cache-friendly Hash Table, Step by Step”

CppCon

“Excellent talk which explains the concepts really clearly and concisely.”

9 HN recommenders · 2018–2026

talk#140

Erlang Factory 2014 - That's 'Billion' with a 'B': Scaling to the Next Level at WhatsApp

Erlang Solutions

“watch this talk and imagine trying to recreate that system with only a handful of server engineers”

6 HN recommenders · 2014–2022

interview#148

How Crash Bandicoot Hacked The Original Playstation | War Stories | Ars Technica

Ars Technica

“Immensely interesting video!”

13 HN recommenders · 2020–2026

talk#166

"How NOT to Measure Latency" by Gil Tene

Strange Loop Conference

“This a life changing video by Gil Tene on this topic.”

9 HN recommenders · 2015–2026

lecture#194

Refterm Lecture Part 1 - Philosophies of Optimization

Molly Rocket

“The video on Philosophies of Optimisation is a good primer on the tenets of the course.”

10 HN recommenders · 2021–2026

talk#196

CppCon 2014: Mike Acton "Data-Oriented Design and C++"

CppCon

“one of the most digestible ways to start thinking about performance in high throughput systems”

9 HN recommenders · 2015–2026

talk#292

Jonathan Blow - Preventing the Collapse of Civilization (English only)

bus

“Very much worth watching in its entirety and thinking about”

11 HN recommenders · 2019–2023

talk#334

Casey Muratori – The Big OOPs: Anatomy of a Thirty-five-year Mistake – BSC 2025

Better Software Conference

“which really is hunting back and back for the cosmogenesis of objects, and covers so much terrain.”

11 HN recommenders · 2025–2026

talk#362

CppCon 2014: Chandler Carruth "Efficiency with Algorithms, Performance with Data Structures"

CppCon

“I'm also a big fan of "Efficiency with Algorithms, Performance with Data Structures" by Chandler Carruth at CppCon 2014.”

7 HN recommenders · 2014–2024

demo#364

[EPILEPSY WARNING] How fast should an unoptimized terminal run?

Molly Rocket

“Casey spent <1 week making RefTerm, a skeleton proto-terminal with the same constraints Microsoft people had”

6 HN recommenders · 2021–2026

explainer#376

FIXING the ENTIRE SM64 Source Code (INSANE N64 performance)

Kaze Emanuar

“amazing video about refactoring Mario 64 to reach 30 FPS and render 6x faster on N64”

7 HN recommenders · 2022–2025

lecture#396

Simple Code, High Performance

Molly Rocket

“I highly recommend watching it.”

6 HN recommenders · 2021–2025

talk#423

CppCon 2019: Chandler Carruth “There Are No Zero-cost Abstractions”

CppCon

“Chandler presents his point clearly and goes deep enough into the subject.”

7 HN recommenders · 2020–2026

talk#454

C++ and Beyond 2012: Herb Sutter - atomic Weapons 1 of 2

alexsmail

“which are extremely good”

4 HN recommenders · 2020–2024

talk#458

Sorting Algorithms: Speed Is Found In The Minds of People - Andrei Alexandrescu - CppCon 2019

CppCon

“At first he is just showing simple stuff, but stay with it, he goes deep.”

7 HN recommenders · 2019–2024

talk#486

Jake Archibald on the web browser event loop, setTimeout, micro tasks, requestAnimationFrame, ...

JSConf

“actually making it both entertaining and easily grokable!”

7 HN recommenders · 2018–2023

talk#633

Advanced Topics in Programming Languages: A Lock-Free Hash Table

GoogleTalksArchive

“I highly recommend this talk by Cliff Click about building highly scalable hash tables via Compare And Swap”

4 HN recommenders · 2013–2024

talk#641

CppCon 2017: Carl Cook “When a Microsecond Is an Eternity: High Performance Trading Systems in C++”

CppCon

“Here are some talks that will give you a small overview into that world”

5 HN recommenders · 2017–2025

talk#707

"Outperforming Imperative with Pure Functional Languages" by Richard Feldman

Strange Loop Conference

“As a starting point for those nitty grittys, this talk is probably as good as any”

6 HN recommenders · 2021–2025

talk#718

Zach Tellman - Everything Will Flow

ClojureTV

“He talks about queues and how they break down under load.”

4 HN recommenders · 2015–2022

talk#750

Cliff Click @ VMSS16: Bits of Advice For the VM Writer

softdevteamuk

“I strongly recommend following and listening to videos by Cliff Click who wrote HotSpot and worked on Azul and other VMs.”

2 HN recommenders · 2017–2021

talk#764

Larry Hastings - Removing Python's GIL: The Gilectomy - PyCon 2016

PyCon 2016

“I think Larry Hasting's first Gilectomy talk was extremely insightful”

5 HN recommenders · 2016–2023

talk#892

Andrew Kelley: A Practical Guide to Applying Data Oriented Design (DoD)

ChimiChanga

“A good introduction to SoA (for anyone curious) are the two most famous Data-Oriented Design talks”

4 HN recommenders · 2024–2026

commentary#973

"Clean" Code, Horrible Performance

Molly Rocket

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

3 HN recommenders · 2023–2026

talk#1008

Progressive Performance (Chrome Dev Summit 2016)

Chrome for Developers

“Take a look at this talk on why mobile devices are so much slower than desktop devices”

4 HN recommenders · 2016–2018

talk#1017

"Performance (Really) Matters" with Emery Berger

Association for Computing Machinery (ACM)

“I highly recommend it. It's mind blowing, but also terrifying”

3 HN recommenders · 2022–2026

talk#1076

Understanding the Python GIL

David Beazley

“My favorite example is Beazley's GIL talk”

4 HN recommenders · 2013–2023

talk#1117

C++ Exceptions for Smaller Firmware - Khalil Estell - CppCon 2024

CppCon

“In particular, his 2019 presentation [2] describes different error handling techniques”

5 HN recommenders · 2025–2026

explainer#1183

How is this Website so fast!?

Wes Bos

“Here is Wes Bos taking a deeper dive into the intricacies of technologies used to accomplish this”

4 HN recommenders · 2024–2025

talk#1204

Halide Talk

Andrew Adams

“The best way to understand it is probably to watch the video, which is relatively long but explains things clearly”

5 HN recommenders · 2014–2021

demo#1224

Refterm v2 - Resource usage, binary splat, glyph sizing, and more

Molly Rocket

“Casey Muratori produced a highly correct Unicode renderer with correct VT code support. Watch the video”

3 HN recommenders · 2021–2025

talk#1385

CppCon 2016: Nicholas Ormrod “The strange details of std::string at Facebook"

CppCon

“it's still definitely worth a watch”

4 HN recommenders · 2018–2026

demo#1429

Shouting in the Datacenter

Bryan Cantrill

“this entertaining YouTube video from 2009, in which someone demonstrates the effect by literally shouting at a rack of servers”

4 HN recommenders · 2011–2026

talk#1452

CppCon 2016: Chandler Carruth “Garbage In, Garbage Out: Arguing about Undefined Behavior..."

CppCon

“Chandler Carruth's talk on the subject was really useful for my own understanding of the reasoning behind UB”

4 HN recommenders · 2016–2026

talk#1476

CppCon 2017: Chandler Carruth “Going Nowhere Faster”

CppCon

“The best presentation I've seen about CPU performance related to pipelining, branch prediction, and speculative execution”

2 HN recommenders · 2017–2026

talk#1500

Stephan T. Lavavej “Floating-Point <charconv>: Making Your Code 10x Faster With C++17's Final Boss”

CppCon

“Stephan T Lavavej also had a surprisingly fun and approachable talk on that problem”

3 HN recommenders · 2020–2022

tutorial#1571

Handmade Hero Day 001 - Setting Up the Windows Build

Molly Rocket

“the amount of knowledge and experience on-show was incredible”

3 HN recommenders · 2017–2021

talk#1596

Armin Ronacher - A Python for Future Generations

EuroPython Conference

“I highly recommend the two videos posted here”

4 HN recommenders · 2017–2020

talk#1677

code::dive conference 2014 - Scott Meyers: Cpu Caches and Why You Care

NOKIA Technology Center Wrocław

“Scott Meyers had a very good talk which contained this information”

3 HN recommenders · 2018–2023

talk#1698

Servo Architecture: Safety and Performance

linux conf au 2017 - Hobart, Australia

“This video is one of the most exciting I have seen with regards to web browser performance, and it's Mozilla”

3 HN recommenders · 2017

talk#1721

Google I/O 2013 - High Performance Audio

Google for Developers

“is a must-watch”

4 HN recommenders · 2013–2018

talk#1728

How to Speed up a Python Program 114,000 times.

InfoQ

“Humour, serious technical insight and a good reminder of why being a generalist is an advantage.”

3 HN recommenders · 2015–2022

talk#1748

Charlie Marsh: uv: An Extremely Fast Python Package Manager

Jane Street

“I recently watched a talk by the author of uv that was surprisingly fascinating”

3 HN recommenders · 2024–2025

Channels HN cites most for software performance & optimization

Each channel page lists every video of theirs that HN recommends.

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