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Top 10 Rust lock-free Projects
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Project mention: ToyDB rewritten: a distributed SQL database in Rust, for education | news.ycombinator.com | 2025-05-11
Maybe consider sled? https://github.com/spacejam/sled
It's been abandoned for some years, the author was working on a new engine for it and in the last 5 days they started working again on sled proper. However, it's pretty good the way it is (the 0.34.7 release from 2021 https://crates.io/crates/sled), despite the beta warnings
More info here https://dbdb.io/db/sled
(Note, non affiliated to the author, just liked the project)
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Project mention: Java at 30: The Genius Behind the Code That Changed Tech | news.ycombinator.com | 2025-05-16
One very common queue implementation you can use to implement actors is the crossbeam-deque. It's work-stealing in nature, works in multi-threaded environments and has no locks. The implementation is quite simple to follow:
https://github.com/crossbeam-rs/crossbeam/blob/master/crossb...
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skipdb
An embedded, in-memory, zero-copy, atomicity, consistency, isolation, MVCC, almost lock-free and serializable snapshot isolation database engine.
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skl
A lock-free thread-safe concurrent SkipMap implementation based on ARENA skiplist which helps develop MVCC memtable for LSM-Tree.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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rc_event_queue
VecDeque-like fast, unbounded, mpmc/spmc concurent FIFO message queue. Lockless reads, write-lock writes.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Rust lock-free discussion
Rust lock-free related posts
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Sled: An Embedded Database in Rust
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SableDb – a key/value store that uses RocksDB and Redis API (written in Rust)
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SQLite: Wal2 Mode
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multi-producer multi-consumer channels for message passing python library
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I needed to write a simple multi-threaded message processing queue in C++ today. Makes me really appreciate how easy this is to do in Rust.
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amqprs get 60 stars and being used in production and perform well
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crossbeam VS scalable-concurrent-containers - a user suggested alternative
2 projects | 13 Apr 2023 -
A note from our sponsor - InfluxDB
www.influxdata.com | 19 May 2025
Index
What are some of the best open-source lock-free projects in Rust? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | sled | 8,464 |
| 2 | crossbeam | 7,861 |
| 3 | left-right | 1,992 |
| 4 | bus | 802 |
| 5 | amqprs | 250 |
| 6 | skipdb | 223 |
| 7 | skl | 58 |
| 8 | eventador-rs | 26 |
| 9 | rc_event_queue | 21 |
| 10 | lincheck | 11 |
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