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XenoAtom.Allocators

This library provides fast, lightweight and low-level memory allocators for .NET.

✨ Features

• Implementation of a TLSF (Two-Level Segregated Fit) allocator with the following features
  • Implementation of the paper TLSF: a NewDynamic Memory Allocator for Real-Time Systems
  • Provides an agnostic backend chunk allocator architecture (native memory, managed memory, custom e.g GPU memory...)
  • 4GB of addressable maximum allocation size.
  • Minimum allocation size/alignment of 64 bytes (32 bytes overhead per allocation)
  • Configurable power-of-two alignment per allocator instance.
• NativeAOT compatible.
• Support for net8.0+

📖 User Guide

For more details on how to use XenoAtom.Allocators, please visit the user guide.

📊 Benchmarks

The benchmark is available in the XenoAtom.Allocators.Bench.

It is comparing the performance of the TLSF allocator against the standard malloc/free from the C runtime library.

The benchmark consists of making 2048 allocations and frees within a range of random sizes between 64, 96, 150, 200, 400, 1024, 4096 bytes.

BenchmarkDotNet v0.13.12, Windows 11 (10.0.22631.3810/23H2/2023Update/SunValley3)
AMD Ryzen 9 7950X, 1 CPU, 32 logical and 16 physical cores
.NET SDK 8.0.300
  [Host]     : .NET 8.0.6 (8.0.624.26715), X64 RyuJIT AVX-512F+CD+BW+DQ+VL+VBMI
  DefaultJob : .NET 8.0.6 (8.0.624.26715), X64 RyuJIT AVX-512F+CD+BW+DQ+VL+VBMI

The benchmark shows that the TLSF allocator is 20%+ faster than the standard malloc/free from the C runtime library (MSVC C Runtime on Windows).

🪪 License

This software is released under the BSD-2-Clause license.

🤗 Author

Alexandre Mutel aka XenoAtom.