garnet
FASTER
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garnet
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A MySQL compatible database engine written in pure Go
You would be surprised by performance of modern .NET :)
Writing no-alloc is oftentimes done by reducing complexity and not doing "stupid" tricks that actually work against JIT and CoreLib features.
For databases specifically, .NET is actually positioned very well with its low-level features (intrisics incl. SIMD, FFI, struct generics though not entirely low-level) and high-throughput GC.
Interesting example of this applied in practice is Garnet[0]/FASTER[1]. Keep in mind that its codebase still consist of un-idiomatic C# and you can do way better by further simplification, but it already does the job well enough.
[0] https://github.com/microsoft/garnet
[1] https://github.com/microsoft/FASTER
- FLaNK AI Weekly 25 March 2025
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Redis License Changed
At the same time Microsoft releases Garnet: https://github.com/microsoft/garnet
Good timing.
- Garnet – A new remote cache-store from Microsoft Research
FASTER
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A MySQL compatible database engine written in pure Go
You would be surprised by performance of modern .NET :)
Writing no-alloc is oftentimes done by reducing complexity and not doing "stupid" tricks that actually work against JIT and CoreLib features.
For databases specifically, .NET is actually positioned very well with its low-level features (intrisics incl. SIMD, FFI, struct generics though not entirely low-level) and high-throughput GC.
Interesting example of this applied in practice is Garnet[0]/FASTER[1]. Keep in mind that its codebase still consist of un-idiomatic C# and you can do way better by further simplification, but it already does the job well enough.
[0] https://github.com/microsoft/garnet
[1] https://github.com/microsoft/FASTER
- FLaNK Stack 26 February 2024
- Fast persistent recoverable log and key-value store
- GitHub - microsoft/FASTER: Fast persistent recoverable log and key-value store + cache, in C# and C++.
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FoundationDB: A Distributed Unbundled Transactional Key Value Store
A vaguely similar project that might be of interest is: https://github.com/microsoft/FASTER
It's also an "unbundled" low-level component that one could use as the foundation for a database engine or whatever. According to Microsoft, FASTER is not just "fast", but significantly faster than even some basic in-memory data structures that ship in the .NET standard library!
The downside is that it doesn't (yet) support some more advanced features like multi-server distributed mode.
However, that relative simplicity may be preferred in some scenarios...
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Event Sourcing
Last time i looked into it there weren't that many i could find. There is https://github.com/tikv/tikv which uses rocksdb with raft. and there is faster https://github.com/microsoft/FASTER/ .
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Experiences with Concurrent Hash Map Libraries
you could use fasterkv https://github.com/microsoft/FASTER
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Faster A fast concurrent persistent key-value store and log, in C# and C++
FTA, https://github.com/Microsoft/FASTER/wiki/Performance-of-FAST...
What are some alternatives?
redis - Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes
libcuckoo - A high-performance, concurrent hash table
KeyDB - A Multithreaded Fork of Redis
parallel-hashmap - A family of header-only, very fast and memory-friendly hashmap and btree containers.
dragonfly - A modern replacement for Redis and Memcached
foundationdb - FoundationDB - the open source, distributed, transactional key-value store
FLiPStackWeekly - FLaNK AI Weekly covering Apache NiFi, Apache Flink, Apache Kafka, Apache Spark, Apache Iceberg, Apache Ozone, Apache Pulsar, and more...
plumber - A swiss army knife CLI tool for interacting with Kafka, RabbitMQ and other messaging systems.
deeplake - Database for AI. Store Vectors, Images, Texts, Videos, etc. Use with LLMs/LangChain. Store, query, version, & visualize any AI data. Stream data in real-time to PyTorch/TensorFlow. https://activeloop.ai
tikv - Distributed transactional key-value database, originally created to complement TiDB
vitess - Vitess is a database clustering system for horizontal scaling of MySQL.
Folly - An open-source C++ library developed and used at Facebook.