microsoft/Microsoft.IO.RecyclableMemoryStream

Health v2 · maintenance only

Adoption not part of the score

2145 stars · 214 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A .NET library that pools MemoryStream buffers to reduce garbage collection pressure and Large Object Heap allocations in performance-critical applications. It is a near drop-in replacement for System.IO.MemoryStream with thread-safe pooling, metrics, and debugging support.

Use cases

• reduce gen 2 GC pauses in a high-throughput .NET service
• avoid large object heap allocations when serializing large payloads
• replace MemoryStream in a performance-critical application
• track down memory leaks from stream buffer misuse
• pool byte buffers for reading and writing large files

When to choose

• your .NET app allocates many MemoryStreams and suffers GC pressure
• you need a bounded, thread-safe buffer pool with metrics and logging
• you want a drop-in MemoryStream replacement supporting Span and Memory APIs

When to avoid

• your workload allocates streams rarely or in small sizes
• you need streams that are thread-safe themselves
• you are not on a supported .NET target

Facets

library · maturity stable

caching developer-tools benchmarking performance developer-tools dotnet cross-platform memory-pooling memorystream garbage-collection large-object-heap drop-in-replacement dotnet

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markdown · JSON · MCP: product_card(name="microsoft/Microsoft.IO.RecyclableMemoryStream")