THE VIDEO SHELF · physics engine parallelization
Dennis Gustafsson – Parallelizing the physics solver – BSC 2025
Dennis Gustafsson, creator of Teardown, presents how he parallelized the physics solver for an upcoming game, followed by a Q&A. The talk was given at the Better Software Conference 2025.
Why HN readers recommended it
HN points to it as a practical example of solving a tricky multithreading problem, including using a spinlock to speed up a real-time physics solver.
This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.
Video & recommendation details
- Creator / channel
- Better Software Conference
- Topic
- physics engine parallelization
- Format
- talk
- Level
- advanced
- HN recommenders in dataset
- 2
- HN mentions in dataset
- 3
- Recommendation years in dataset
- 2025–2026
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.
As always: use standard libraries, profile, then write your own if the data indicates it's necessary. The following is an interesting talk where the author used a spinlock to speed up a real-time physics solver significantly. Dennis Gustafsson – Parallelizing the physics solver – BSC …
fasterik on Hacker News · 2026-01
In Spinning around: Please don't – Common problems with spin locksNot about multiplayer but still interesting. Dennis Gustafsson – Parallelizing the physics solver – BSC 2025 [VIDEO]
Hikikomori on Hacker News · 2026-03
In The unlikely story of Teardown Multiplayer
Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.