Life & fun · alternatives · 2026
24 alternatives to IPC between multiple Java processes/JVMs with nanosecond latency
Mappedbus is a Java inter-process communication library that enables fast message passing between multiple JVMs using memory-mapped files. It supports multiple concurrent writers while maintaining message ordering and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. IPC between multiple Java processes/JVMs with nanosecond latency launched in 2015; newer entries below may have overtaken it.
- 1LT
2013 · blog.paralleluniverse.co · its alternatives →
- 2
Hello everyone, Today we released iceoryx2 v0.4! iceoryx2 is a service-based inter-process communication (IPC) library designed to make communication between processes as fast as possible - like Unix domain sockets or message queues, but orders of magnitude faster and easier to use. It also comes with advanced features such as circular buffers, history, event notifications, publish-subscribe messaging, and a decentralized architecture with no need for a broker. For example, if you're working in robotics and need to process frames from a camera across multiple processes, iceoryx2 makes it…
2024 · ekxide.io · its alternatives →
- 3
If you work in C++, and you would like 2+ programs to share data structures (and/or native I/O handles a.k.a. FDs) among each other, there is a good chance Flow-IPC - will make it considerably less annoying to code than typical approaches; and - may massively reduce the latency involved. Those sharing Cap'n Proto-encoded data may have particular interest. Cap'n Proto (https://capnproto.org) is fantastic at its core task - in-place serialization with zero-copy - and we wanted to make the IPC (inter-process communication) involving capnp-serialized messages be zero-copy,…
2024 · github.com · its alternatives →
- 4
Distributed WASM runtime. Workloads place themselves over a zero-trust mesh. One static binary. - Sambigeara/pollen
Apr 2026 · github.com · its alternatives →
- 5
Fast Parallel Async HTTP/SSH/TCP/UDP/Ping Client Java Library. Aggregate 100,000 APIs & send anywhere in 20 lines of code. Ping/HTTP Calls 8000 servers in 12 seconds. (Akka) www.parallec.io - eBay/parallec
2015 · github.com · its alternatives →
- 6
I am happy to announce Stalwart JMAP [1], an open-source JSON Meta Application Protocol server that aims to be scalable, robust and secure. Some of its key features are: - JMAP Core, JMAP Mail and JMAP over WebSocket full compliance. - IMAP4 rev2/1 support via Stalwart IMAP, an imap-to-jmap proxy [2]. - Scalable and fault tolerant: consensus over Raft, node autodiscovery over gossip and read-only replicas. - RocksDB backend with full-text search support in 17 languages. - OAuth 2.0 authorization code and device authorization flows. - Domain Keys Identified Mail (DKIM) message signing. -…
2022 · github.com · its alternatives →
- 7
CLI Native WebRTC Agent in Rust. Contribute to bitwhip/bitwhip development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 8
A realtime server for the modern web
2016 · deepstream.io · its alternatives →
- 9
Proto Actor - Ultra fast distributed actors for Go, C# and Java/Kotlin - asynkron/protoactor-go
2016 · github.com · its alternatives →
- 10
Async transport layers for MCP. Contribute to bh-rat/asyncmcp development by creating an account on GitHub.
2025 · github.com · its alternatives →
- 11
Hi HN, I built a Java library called SmartFileProcessor to make high-performance, multi-threaded file processing simpler and more maintainable. Most Java file processing solutions either involve a lot of boilerplate or don’t handle concurrency, backpressure, or metrics well out of the box. I needed something fast, clean, and production-friendly — so I built this. Key features: Multi-threaded line/batch processing using a configurable thread pool Producer/consumer model with built-in backpressure Buffered, asynchronous writing with optional auto-flush Live metrics: memory usage,…
2025 · github.com · its alternatives →
- 12
Hey HN, this is Will and David from Fortress (https://news.ycombinator.com/item?id=41426998). We use a lot of async Rust internally, and created this library out of a need for an async-aware concurrent hashmap since there weren’t many available in the Rust ecosystem. Whirlwind is a sharded HashMap with a fully asynchronous API. Just as dashmap is a replacement for std::sync::RwLock, whirlwind aims to be a replacement for tokio::sync::RwLock. It has a similar design and performance characteristics to dashmap, but seems to perform better in read-heavy workloads with tokio's…
2024 · github.com · its alternatives →
- 13
Actor runtime and distributed systems framework for Rust - LeonHartley/Coerce-rs
2019 · github.com · its alternatives →
- 14
High-performance serverless functions for Rust & WebAssembly
2020 · secondstate.io · its alternatives →
- 15
Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…
2023 · github.com · its alternatives →
- 16
This project launches multiple independent programs into a single shared virtual address space, while still behaving like separate processes (independent binaries, globals, and lifetimes). When threadprocs share their address space, pointers are valid across them with no code changes for well-behaved Linux binaries. Unlike threads, each threadproc is a standalone and semi-isolated process. Unlike dlopen-based plugin systems, threadprocs run traditional executables with a `main()` function. Unlike POSIX processes, pointers remain valid across threadprocs because they share the same address…
Mar 2026 · github.com · its alternatives →
- 17
Optimizer library for tail recursive calls in Java bytecode - Sipkab/jvm-tail-recursion
2020 · github.com · its alternatives →
- 18
This is an open‑source Model Context Protocol (MCP) server that gives any LLM a sense of the passage of time. Most MCP demos wire LLMs to external data stores. That’s useful, but MCP is also a chance to give models perception — extra senses beyond the prompt text. Six functions (`current_datetime`, `time_difference`, `timestamp_context`, etc.) give Claude/GPT real temporal awareness: It can spot pauses, reason about rhythms, and even label a chat’s “three‑act structure”. Runs locally in <60 s (Python) or via a hosted demo. If time works, what else could we surface? - Location /…
2025 · github.com · its alternatives →
- 19
Network protocol emulator and testing tool
2017 · vprotostack.com · its alternatives →
- 20
Hello Everyone! We built SQLFlow as a lightweight stream processing engine. We leverage DuckDB as the stream processing engine, which gives SQLFlow the ability to process 10's of thousands of messages a second using ~250MiB of memory! DuckDB also supports a rich ecosystem of sinks and connectors! https://sql-flow.com/docs/category/tutorials/ https://github.com/turbolytics/sql-flow We were tired of running JVM's for simple stream processing, and also of bespoke one off stream processors I would love your feedback, criticisms and/or…
Dec 2025 · sql-flow.com · its alternatives →
- 21
Inter-process C++ communication library to enable allocation managed between processes/threads and send/receive of allocated regions between producers/consumer processes or threads using this IPC buffer. (and yes it implements an M:N ring buffer too) - Usage · RaftLib/ipc Wiki
2021 · github.com · its alternatives →
- 22
I created cmd-stream-go, a high-performance client-server library based on the Command Pattern, where Commands are first-class citizens. Why build around Commands? As serializable objects, they can be sent over the network and persisted. They also provide a clean way to model distributed transactions through composition, and naturally support features like Undo and Redo. These qualities make them a great fit for implementing consistency patterns like Saga in distributed systems. On the performance side, sending a Command involves minimal overhead — only its type and data need to be…
2025 · github.com · its alternatives →
- 23
Non-preemptive Thread Hierarchy Manager. Contribute to gueststar/nthm development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 24
Simple and scalable pub/sub message bus written in Erlang
2015 · cabol.github.io · its alternatives →
Also compare
- Lightweight Threads, Channels and Actors for the JVM alternatives
- Iceoryx2 – Fast IPC Library for Rust, C++, and C alternatives
- Comprehensive inter-process communication (IPC) toolkit in modern C++ alternatives
- Pollen – distributed WASM runtime, no control plane, single binary alternatives
- Pings 8000 servers in 11 seconds: Parallel HTTP/SSH/TCP/Ping library alternatives
- Distributed JMAP and IMAP Servers in Rust alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →