I built a native C# Grep engine that's holding it's own with ripgrep (with zero allocations)
7.3 relevance
Score Breakdown
technical depth 9
novelty 8
actionability 6
community 6
strategic 5
personal 7
Scored daily by a customisable AI persona to surface the most relevant engineering leadership news.
High-performance C# grep, relevant to systems engineering and dev tools.
Summary
A developer built Glacier.Grep, a native C# grep engine on .NET 10 that beats ripgrep on case-sensitive queries (120.4 ms vs 134.9 ms) over 590 files (257 MB). It achieves zero-allocation via stack-based filesystem traversal with ref struct, hybrid I/O using ArrayPool for small files and MemoryMappedFile for large, and SIMD-accelerated byte search via SearchValues<byte> to eliminate GC pressure. This design targets sub-20ms AI context layers where external CLI processes destroy performance.