Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks
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A 2.78-trillion-parameter Kimi K3 running inference on a single CPU in 8.24 GB of RAM. Portable C99: no BLAS, no framework, no GPU.
Implementations of SIMD instruction sets for systems which don't natively support them.
Unicode routines (UTF8, UTF16, UTF32) and Base64: billions of characters per second using SSE2, AVX2, NEON, AVX-512, RISC-V Vector Extension, LoongArch64, POWER. Part of Node.js, WebKit/Safari, Ladybird, Chromium, Cloudflare Workers, Ghostty and Bun.
Roaring bitmaps in C (and C++), with SIMD (AVX2, AVX-512 and NEON) optimizations: used by Apache Doris, ClickHouse, Alibaba Tair, Redpanda, YDB and StarRocks
DirectXMath is an all inline SIMD C++ linear algebra library for use in games and graphics apps
SIMD Vector Classes for C++
C++ template library for high performance SIMD based sorting algorithms
🚀 Fast C/C++ bit population count library
Pure Go production-grade regex engine with SIMD optimizations. Up to 3-3000x+ faster than stdlib.
Fork of FastMM4 by Pierre le Riche with AVX/AVX2/AVX512 support, efficient synchronization, and FreePascal (FPC/Lazarus) compatibility
A few classes for extremely fast json parsing/serializing in modern C++. Possibly the fastest json parser in C++. Possibly the fastest json serializer in C++.