LMAX Disruptor
Ranked 4 of 5 Java libraries by recommenders
A fast Java library for passing data between threads, built by LMAX for its financial exchange and praised for its hardware-aware design. Critics say it gets too much hype and is good only for some uses.
A fast Java library for passing data between threads, built by LMAX for its financial exchange and praised for its hardware-aware design. Critics say it gets too much hype and is good only for some uses.
9 people gave an opinion
- recommend it
- 6
- criticize it
- 3
- approval share
- 67%
Recommended in 5 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: recommended
- August 2026: not recommended
- September 2026: recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 6 people recommend itNeeds 10 or more, not met.
- 2 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 5 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Built for a high-performance financial exchange
“The Disruptor is the result of our efforts to build the world’s highest performance financial exchange at LMAX.”
Comment from 23 Nov 2025 in “Ask HN: Good resources to learn financial systems engineering?” “It's a story of playing to hardware's strengths instead of wrapping yourself up in bullshit excuses.”
Comment from 17 Dec 2025 in “Put a ring on it: a lock-free MPMC ring buffer” Praised as a neat, wonderful library
“It is truly a wonder. It is something to behold.”
Comment from 15 Sep 2026 in “Java 27” “I like Disruptor, it's a very neat library”
Comment from 12 Nov 2025 in “FFmpeg to Google: Fund us or stop sending bugs”
What people warn about
Each mark is one comment
Overhyped for what it actually does
“For some reason the Java-OOP crowd keeps thinking that LMAX deserves a nobel price for being neither first nor last to use it.”
Comment from 16 Dec 2025 in “Put a ring on it: a lock-free MPMC ring buffer” “the one thing that's really unique about LMAX is the amount of advertising it gets”
Comment from 16 Dec 2025 in “Put a ring on it: a lock-free MPMC ring buffer” Only good for some uses
“genuinely good for some things”
Comment from 16 Jul 2026 in “The Tokio/Rayon Trap and Why Async/Await Fails Concurrency”
Other Java libraries people recommend
The four most recommended other Java libraries, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Lombok | 9 | 13 | 41% | 4 | — | — |
| Apache Commons | 8 | 2 | 80% | 5 | — | — |
| Google Guava | 7 | 2 | 78% | 5 | — | — |
| LMAX DisruptorThis page | 6 | 3 | 67% | 5 | — | — |
| Java Vector API | 5 | 3 | 63% | 5 | — | — |
What people said
9 of the 10 comments that mention it, newest first. Each links to the original comment.
“It is truly a wonder. It is something to behold.”
“Vert.x and Disruptor do a pretty good job filling in the gaps”
“genuinely good for some things”
“those have low bar of performance”
“It's a story of playing to hardware's strengths instead of wrapping yourself up in bullshit excuses.”
“For some reason the Java-OOP crowd keeps thinking that LMAX deserves a nobel price for being neither first nor last to use it.”
“the one thing that's really unique about LMAX is the amount of advertising it gets”
“The Disruptor is the result of our efforts to build the world’s highest performance financial exchange at LMAX.”
“I like Disruptor, it's a very neat library”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.