new article: high perf .net libs

docs/en/Community-Articles/2025-09-11-High-Perf-DotNet-Libs/Post.md

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+# High-Performance .NET Libraries You Didn’t Know You Needed
+
+Whether you’re building enterprise apps, microservices, or SaaS platforms, using the right libraries can help you ship faster and scale effortlessly. 
+Here are some **high-performance .NET libraries** you might not know but definitely should.
+
+
+
+## 1. BenchmarkDotNet – Measure before you optimize
+
+![BenchmarkDotnet](benchmarkdotnet.png)
+
+BenchmarkDotNet makes it simple to **benchmark .NET code with precision**.
+
+- Easy setup with `[Benchmark]` attributes
+- Generates detailed performance reports
+- Works with .NET Core, .NET Framework, and Mono
+
+Perfect for spotting bottlenecks in APIs, background services, or CPU-bound operations.
+
+- **NuGet** (40M downloads) 🔗 https://www.nuget.org/packages/BenchmarkDotNet
+- **GitHub** (11k stars) 🔗 https://github.com/dotnet/BenchmarkDotNet
+
+------
+
+## 2. MessagePack – Fastest JSON serializer
+
+Need speed beyond System.Text.Json or Newtonsoft.Json ?  MessagePack is the fastest serializer for C# (.NET, .NET Core, Unity, Xamarin). MessagePack has a compact binary size and a full set of general purpose expressive data types. Ideal for high-traffic APIs, IoT data processing, and microservices.
+
+![MessagePack Benchmark](MessagePack.png)
+
+- **NuGet** (204M downloads) 🔗 https://www.nuget.org/packages/messagepack
+- **GitHub** (6.4K stars) 🔗 https://github.com/MessagePack-CSharp/MessagePack-CSharp
+
+------
+
+## 3. Polly – Resilience at scale
+
+![Polly](Polly.png)
+
+In distributed systems, failures are inevitable. **Polly** provides a fluent way to add **retry, circuit-breaker, and fallback** strategies.
+
+- Handle transient faults gracefully
+- Improve uptime and user experience
+- Works seamlessly with HttpClient and gRPC
+
+A must-have for cloud-native .NET applications.
+
+- **NuGet** (1B downloads) 🔗 https://www.nuget.org/packages/polly/
+- **GitHub** (14K stars) 🔗 https://github.com/App-vNext/Polly
+
+------
+
+## 4. MemoryPack – Zero-cost binary serialization
+
+If you need **blazing-fast serialization** for in-memory caching or network transport, **MemoryPack** is a game-changer.
+
+- Zero-copy, zero-alloc serialization
+- Perfect for high-performance caching or game servers
+- Strongly typed and version-tolerant
+
+![MemoryPack](MemoryPack.png)
+
+Great for real-time multiplayer games, chat apps, or financial systems.
+
+- **NuGet** (5.3M downloads) 🔗 https://www.nuget.org/packages/MemoryPack
+- **GitHub** (4K stars) 🔗 https://github.com/Cysharp/MemoryPack
+
+------
+
+## 5. WolverineFx –  Ultra-low latency messaging
+
+![wolverine](wolverine-logo.png)
+
+MediatR  was one of the best mediator library but now it's a paid library. Wolverine is a toolset for command execution and message handling within .NET applications. The killer feature of Wolverine is its very efficient command execution pipeline that can be used as:
+
+- An [inline "mediator" pipeline](https://wolverinefx.net/tutorials/mediator.html) for executing commands
+- A [local message bus](https://wolverinefx.net/guide/messaging/transports/local.html) for in-application communication
+- A full-fledged [asynchronous messaging framework](https://wolverinefx.net/guide/messaging/introduction.html) for robust communication and interaction between services when used in conjunction with low level messaging infrastructure tools like RabbitMQ
+- With the [WolverineFx.Http](https://wolverinefx.net/guide/http/) library, Wolverine's execution pipeline can be used directly as an alternative ASP.Net Core Endpoint provider
+
+*Below image is from [codecrash.net](https://www.codecrash.net/2024/02/06/Mediatr-versus-Wolverine-performance.html)*
+![WolverineFx](wolverine.png)
+
+WolverineFx is great for cleanly separating business logic from controllers while unifying in-process mediator patterns with powerful distributed messaging in a single, high-performance .NET library.
+
+- **NuGet** (1.5M downloads) 🔗 https://www.nuget.org/packages/WolverineFx
+- **GitHub** (1.7K stars) 🔗 https://github.com/JasperFx/wolverine
+
+
+
+## 6.  Disruptor-net – Next generation free .NET mediator
+
+The Disruptor is a high performance inter-thread message passing framework. A lock-free ring buffer for ultra-low latency messaging.
+features are:
+
+- Zero memory allocation after initial setup (the events are pre-allocated).
+
+- Push-based consumers.
+
+- Optionally lock-free.
+
+- Configurable wait strategies.
+
+![Disruptor](Disruptor.png)
+
+- **NuGet** (1.2M downloads) 🔗 https://www.nuget.org/packages/Disruptor/
+- **GitHub** (1.3K stars) 🔗 https://github.com/disruptor-net/Disruptor-net
+
+
+
+## 7. CliWrap - Running command-line processes
+
+![CLIWrap](C:\Users\alper\Desktop\high-perf-dotnet-libs\cliwrap.png)
+
+CliWrap makes it easy to **run and manage external CLI processes in .NET**.
+
+- Fluent, task-based API for starting commands
+- Streams standard input/output and error in real time
+- Supports cancellation, timeouts, and piping between processes
+
+Ideal for automation, build tools, and integrating external executables.
+
+- **NuGet** (14.1M downloads) 🔗 https://www.nuget.org/packages/CliWrap
+- **GitHub** (4.7K stars) 🔗 https://github.com/Tyrrrz/CliWrap
+
+
+
+---
+
+
+
+## Hidden Libs from the Community
+
+### Sylvan.Csv & **Sep**
+
+- **Sylvan.Csv**: Up to *10× faster* and *100× less memory allocations* than `CsvHelper`, making CSV processing lightning-fast. ([Reddit](https://www.reddit.com/r/csharp/comments/191rwgt/extremely_highperformance_libraries_for_common/?utm_source=chatgpt.com))
+- **Sep**: Even faster than Sylvan, but trades off some flexibility. Great when performance matters more than API richness. ([Reddit](https://www.reddit.com/r/csharp/comments/191rwgt/extremely_highperformance_libraries_for_common/?utm_source=chatgpt.com))
+
+### String Parsing: **csFastFloat**
+
+- Parses `float` and `double` around *8–9× faster* than `.Parse` methods—perfect for high-volume parsing tasks. ([Reddit](https://www.reddit.com/r/csharp/comments/191rwgt/extremely_highperformance_libraries_for_common/?utm_source=chatgpt.com))
+
+### CySharp’s Suite: MemoryPack, MasterMemory, SimdLinq
+
+- **MemoryPack**: One of the fastest serializers available, with low allocations and high throughput. Ideal for Web APIs or microservices. ([Reddit](https://www.reddit.com/r/csharp/comments/191rwgt/extremely_highperformance_libraries_for_common/?utm_source=chatgpt.com))
+- **MasterMemory**: Designed for databases or config storage. Claims *4,700× faster than SQLite* with zero-allocations per query. ([Reddit](https://www.reddit.com/r/csharp/comments/191rwgt/extremely_highperformance_libraries_for_common/?utm_source=chatgpt.com))
+- **SimdLinq**: SIMD-accelerated LINQ operations supporting a broader set of methods than .NET's built-in SIMD. Works when slight floating-point differences are acceptable. ([Reddit](https://www.reddit.com/r/csharp/comments/191rwgt/extremely_highperformance_libraries_for_common/?utm_source=chatgpt.com))
+
+### Jil – JSON Deserializer
+
+- Ultra-fast JSON (de)serializer with low memory overhead, used in high-scale systems. ([Performance is a Feature!](https://www.mattwarren.org/2014/09/05/stack-overflow-performance-lessons-part-2/?utm_source=chatgpt.com))
+
+### StackExchange.NetGain – WebSocket Efficiency
+
+- High-performance WebSocket server library designed for low-latency IO scenarios. (Now mostly replaced by Kestrel's built-in support, but worth knowing.) ([GitHub](https://github.com/StackExchange/NetGain?utm_source=chatgpt.com))
+
+### Math Libraries: Math.NET Numerics & ILNumerics
+
+- **Math.NET Numerics**: Core numerical methods and matrix math, similar to BLAS/LAPACK. ([Wikipedia](https://en.wikipedia.org/wiki/Math.NET_Numerics?utm_source=chatgpt.com))
+- **ILNumerics**: Efficient numerical arrays with parallelized processing, loop unrolling, cache optimizations. Great for scientific computing. ([Wikipedia](https://en.wikipedia.org/wiki/ILNumerics?utm_source=chatgpt.com))
+