Top all-time · #2990
Dragonfly
Company blog · dragonflydb.io/blogprogrammingdatasystems
Dragonfly is the company blog at dragonflydb.io, writing about programming, data and systems. Since 2022, 26 different Hacker News readers have linked it 48 times, most often “Dragonfly – The Fastest In-Memory Data Store”. It is still writing: the last post was on 2026-10-30, and you can follow it by feed.
Too few sampled comments (14) to say how often HN recommends it.?
Why HN links it
Linked mostly as product homepage, FAQ and benchmark pages for Dragonfly, a Redis and Memcached replacement. One commenter praises the blog overall, especially its Dragonfly Swarm post.
Summarised by Claude from a sample of 14 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Discover Dragonfly - the most performant in-memory data store, engineered for extreme throughput at scale.
Most-linked posts?
- Dragonfly – The Fastest In-Memory Data Store3 people · 3 mentions · first linked 2023-05-21
- Redis vs. Dragonfly Scalability and Performance3 people · 3 mentions · first linked 2023-02-28
- Dragonfly Is Not Redis: An Open Letter to the Community2 people · 2 mentions · first linked 2025-04-30
- Dragonfly Swarm: Scaling In-Memory Data Without Limits2 people · 2 mentions · first linked 2025-02-19
- /docs/about/faq2 people · 2 mentions · first linked 2023-05-21
What Hacker News says?
Impressive. Will give it try for internal benchmarks. Homepage: https://dragonflydb.io/ Benchmark: https://raw.githubusercontent.com/dragonflydb/dragonfly/main...
Comment linking /
on “Dragonflydb – A modern replacement for Redis and Memcached”Submitted DragonFlydb: Cache Design as a story · 84 points
HN discussionDo checkout https://www.dragonflydb.io . It's also mentioned in the review!
Comment linking /
on “Databases in 2024: A Year in Review”Submitted Dragonfly Search: a RediSearch-compatible command as a story · 14 points
HN discussionCheck out DragonflyDB (BSL): https://www.dragonflydb.io/ BSL is not OSI-approved, but it’s a much more reasonable AWS-resistant license. It’s the same license CockroachDB uses, for example. KeyDB (BSL, acquired by Snapchat) is also an option: https://keydb.dev/ BSL is a much better license, but it’s a gamble on how long KeyDB will be supported. I don’t want to mess around with such a core part of my architecture.
Comment linking /
on “Redis adopts dual source-available licensing”Submitted Dragonfly Is Not Redis: An Open Letter to the Community as a story · 12 points
HN discussionDoes Redis support multithreading? Doesn't it use a single-threaded event loop, while DragonflyDB basic version is with multithreading enabled and shared-nothing architecture. Also I found this latest comparison between Valkey and DragonflyDB : https://www.dragonflydb.io/blog/dragonfly-vs-valkey-benchmar...
Comment linking /blog/dragonfly-vs-valkey-benchmark-on-google-cloud
on “DiceDB”Submitted Dragonfly Is Not Redis as a story · 12 points
HN discussionPartitioning has been supported for quite a while https://www.postgresql.org/docs/current/ddl-partitioning.htm... Logical replication... https://www.postgresql.org/docs/current/logical-replication.... https://github.com/2ndQuadrant/pglogical?tab=readme-ov-file#... https://docs.aws.amazon.com/dms/latest/sbs/chap-manageddatab... In 'recent years' (in database support terms), PostgreSQL has gained autovacuum support. h…
Comment linking /faq/postgres-delete-performance
on “K1 Buys MariaDB”Submitted Dragonfly Achieves 6.43M Ops/SEC on AWS Graviton3E Instance as a story · 9 points
HN discussionIts available on Dragonfly https://github.com/dragonflydb/dragonfly Here is the docs https://www.dragonflydb.io/docs/command-reference/hashes/hex...
Comment linking /docs/command-reference/hashes/hexpire
on “The Fastest Redis Ever”Submitted Dragonfly Is Production Ready (and we raised $21M) as a story · 9 points
HN discussionGreat blog with a lot of good stuff. Loved their Scalable In Memory Dragonfly Swarm post, for example. https://www.dragonflydb.io/blog/announcing-dragonfly-swarm-s... I do wish they did more to show folks how to go deeper in integrating Dragonfly. A readme update 2 years ago talked about a native distributed log that would offer super fast option for integrators. That's the sort of super neat stuff that will entice…
Comment linking /blog/announcing-dragonfly-swarm-scaling-in-memory-data-without-limits
on “Dragonfly: Modern Replacement for Redis and Memcached”Submitted Dragonfly Swarm: Scaling In-Memory Data Without Limits as a story · 6 points
HN discussionTLDR: Dragonfly throughput is 25X faster than Redis for both GET and SET operations. https://dragonflydb.io/blog/scaling-performance-redis-vs-dra...
Comment linking /blog/scaling-performance-redis-vs-dragonfly
on “Dragonfly Is Production Ready (and we raised $21M)”Submitted No Free Tier for You as a story · 6 points
HN discussionWell, if you intend to contribute to a game engine written in C++, it is of course of advantage if you can program in C++. But there are also game engines written in Go and other garbage collected languages (see e.g. https://www.dragonflydb.io/game-dev/engines/golang ). There are also games written in Go. By the end of the day it's mostly a question of preference. As of Figma, as far as I understand it runs as Wasm;…
Comment linking /game-dev/engines/golang
on “What to Learn? Cpp vs. Go”Submitted Introducing: Dragonfly Cloud as a story · 6 points
HN discussionHave you checked DragonFly? It's multi threaded and modern Redis, it blows Redis away in performance by an order of magnitude. Some performance number here - https://www.dragonflydb.io/blog/scaling-performance-redis-vs...
Comment linking /blog/scaling-performance-redis-vs-dragonfly
on “KeyDB – multi-threaded Redis fork by Snapchat”Submitted New Kubernetes Operator for Dragonfly as a story · 6 points
HN discussionThere is also DragonflyDB which claims to be faster than both Redis and KeyDB. https://www.dragonflydb.io/
Comment linking /
on “KeyDB – multi-threaded Redis fork by Snapchat”Submitted Ensuring Atomicity: A Tale of Dragonfly Transactions as a story · 5 points
HN discussionHA already supported since v1.0. Dragonfly is released under BSL1.1. Its free for use in most cases. https://www.dragonflydb.io/docs/about/faq
Comment linking /docs/about/faq
on “Dragonfly – The most performant in-memory data store on Earth”Submitted Dragonfly and LibreDB Studio: Redis-compatible database management as a story · 4 points
HN discussionStrange, your link to the FAQ gives me a 404, but existing links to specific FAQ sections, posted in the comments below, still work. On the website I can only find this: https://www.dragonflydb.io/docs/about/faq . Maybe they took down the original FAQ?
Comment linking /docs/about/faq
on “Dragonfly – The most performant in-memory data store on Earth”Submitted Infrastructure Should Be Boring as a story · 4 points
HN discussionTheir blog post goes into detail on how they are benchmarking and they use the benchmarking tool developed by Redis [1] > We ran our tests on AWS Graviton2 EC2 instances, which are network-optimized and provide the best performance for web applications. We used memtier_benchmark — a widely used benchmarking tool developed by Redis Ltd. — to test throughput and latency, and Prometheus to monitor and visualize memory…
Comment linking /blog/scaling-performance-redis-vs-dragonfly
on “Dragonfly – The most performant in-memory data store on Earth”Submitted Optimizing Dragonfly to 30x Throughput with BullMQ as a story · 3 points
HN discussion> I imagine with GPT this is very easy to generate now That's exactly what they are doing, but if they had any brains, they'd have a human read the answers before they publish: https://www.dragonflydb.io/faq/is-memcached-good > As an AI language model, I am unable to make subjective judgments on whether Memcached is "good" or not. However, I can provide information about the features, benefits, and limitations of Me…
Comment linking /faq/is-memcached-good
on “Dragonfly – The most performant in-memory data store on Earth”Submitted Redis vs. Dragonfly Scalability and Performance as a story · 3 points
HN discussion
