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#concurrency (30 Repositories)

Ranked open-source repositories tagged with #concurrency, scored by pull request acceptance likelihood and maintainer engagement velocity.

Topic Avg Merge Rate

63.1%

Avg Review Latency

76.0h

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30 repositories tagged #concurrency

B TierRust 475

pen-lang/pen

The parallel, concurrent, and functional programming language for scalable software development

96.0%
Merge Rate
<1h
First Review
100%
1st-Timers
0
Maintainers
S TierC++ 225 2 GFIs

Awesome-Embedded-Learning-Studio/Tutorial_AwesomeModernCPP

A systematic modern C++ tutorial covering C++11-C++23, STL, concurrency, performance optimization, software engineering, embedded systems, networking, GUI, and real-world project practices.

94.3%
Merge Rate
1d
First Review
50%
1st-Timers
3
Maintainers
A TierOCOCaml 723

ocaml-multicore/eio

Effects-based direct-style IO for multicore OCaml

86.7%
Merge Rate
2h
First Review
33%
1st-Timers
8
Maintainers
A TierScala 1.6k

apache/pekko

Build highly concurrent, distributed, and resilient message-driven applications using Java/Scala

87.0%
Merge Rate
1d
First Review
100%
1st-Timers
12
Maintainers
A TierHAHaskell 347 2 GFIs

neohaskell/NeoHaskell

⏩ NeoHaskell is a dialect of Haskell that is focused on newcomer-friendliness and productivity.

84.7%
Merge Rate
16h
First Review
100%
1st-Timers
3
Maintainers
B TierGo 1.1k

nevalang/neva

Dataflow programming language where you write a program as a message-passing graph and everything runs in parallel by default. It has strong static types, compiles to machine code, interoperates with Go, and supports visual programming with a node editor. Extremely LLM-friendly too.

94.6%
Merge Rate
3d
First Review
100%
1st-Timers
1
Maintainers
A TierC# 10.8k

dotnet/orleans

Cloud Native application framework for .NET

80.9%
Merge Rate
9h
First Review
75%
1st-Timers
13
Maintainers
B TierGo 327

Tantalor93/dnspyre

CLI tool for a high QPS DNS benchmark

69.6%
Merge Rate
6h
First Review
67%
1st-Timers
0
Maintainers
A TierScala 13.3k

akka/akka-core

A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

79.7%
Merge Rate
22h
First Review
80%
1st-Timers
2
Maintainers
B TierHAHaskell 922

composewell/streamly

High performance, streaming and concurrent functional programming in Haskell

94.2%
Merge Rate
20d
First Review
100%
1st-Timers
1
Maintainers
A TierScala 521

softwaremill/ox

Safe direct-style streaming, concurrency and resiliency for Scala on the JVM

71.6%
Merge Rate
2d
First Review
100%
1st-Timers
2
Maintainers
B TierRust 9.2k

actix/actix

Actor framework for Rust.

100.0%
Merge Rate
4d
First Review
100%
1st-Timers
1
Maintainers
A TierRust 32.8k

yewstack/yew

Rust / Wasm framework for creating reliable and efficient web applications

86.7%
Merge Rate
1d
First Review
75%
1st-Timers
2
Maintainers
B TierRust 41.8k

sxyazi/yazi

💥 Blazing fast terminal file manager written in Rust, based on async I/O.

75.8%
Merge Rate
2d
First Review
44%
1st-Timers
48
Maintainers
B TierHAHaskell 201

barrucadu/dejafu

Systematic concurrency testing meets Haskell.

100.0%
Merge Rate
-
First Review
100%
1st-Timers
0
Maintainers
B TierScala 111

utwente-fmt/vercors

The VerCors verification toolset for verifying parallel and concurrent software

61.5%
Merge Rate
4d
First Review
67%
1st-Timers
4
Maintainers
B TierElixir 203

ash-project/reactor

Reactor is a dynamic, concurrent, dependency resolving saga orchestrator.

80.0%
Merge Rate
3d
First Review
67%
1st-Timers
0
Maintainers
B TierJavaScript 453

poolifier/poolifier

Fast and small Node.js worker_threads and cluster worker pool

66.7%
Merge Rate
2d
First Review
100%
1st-Timers
0
Maintainers
B TierC 102

aether-lang-dev/aether

An actor-based systems language that compiles to readable C. Native, no VM, no garbage collector.

21.4%
Merge Rate
1d
First Review
0%
1st-Timers
2
Maintainers
B TierZig 969

judofyr/spice

Fine-grained parallelism with sub-nanosecond overhead in Zig

100.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
B TierGo 1.8k

destel/rill

Go toolkit for clean, composable, channel-based concurrency

62.5%
Merge Rate
5d
First Review
100%
1st-Timers
1
Maintainers
B TierPython 429

jfhbrook/pyee

A rough port of Node.js's EventEmitter to Python with a few tricks of its own

72.7%
Merge Rate
22d
First Review
100%
1st-Timers
1
Maintainers
B TierScala 1.2k

scala/scala-async

An asynchronous programming facility for Scala

60.0%
Merge Rate
2d
First Review
0%
1st-Timers
0
Maintainers
B TierScala 4.4k

zio/zio

ZIO — A type-safe, composable library for async and concurrent programming in Scala

15.1%
Merge Rate
2d
First Review
8%
1st-Timers
16
Maintainers
B TierElixir 376

slab/delta-elixir

Elixir implementation of Delta, the JSON format for describing rich-text content and their changes

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
B TierRuby 799

ixti/sidekiq-throttled

Concurrency and rate-limit throttling for Sidekiq

50.0%
Merge Rate
9d
First Review
0%
1st-Timers
1
Maintainers
D TierC++ 1.6k

facebook/CacheLib

Pluggable in-process caching engine to build and scale high performance services

0.0%
Merge Rate
23h
First Review
0%
1st-Timers
2
Maintainers
D TierRust 260

Dicklesworthstone/asupersync

Async runtime for Rust where correctness is structural: region-owned tasks, cancel-correct protocols, capability-gated effects, and deterministic replay testing

0.0%
Merge Rate
6d
First Review
0%
1st-Timers
1
Maintainers
D TierOCOCaml 150 1 GFIs

ocaml-multicore/picos

Interoperable effects based concurrency

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
D TierZig 101

Thomvanoorschot/zigma

Zigma is an algorithmic trading framework built with the Zig programming language, leveraging an actor-based concurrency model. It aims to provide an efficient, low-latency system for algorithmic trading through components handling market data, strategy execution, order management, risk, and data persistence.

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
Best Concurrency Open Source Repositories & C-Rank™ | GetMerged