Implementations of SIMD instruction sets for systems which don't natively support them.

Roaring bitmaps in C (and C++), with SIMD (AVX2, AVX-512 and NEON) optimizations: used by Apache Doris, ClickHouse, and StarRocks

Up to 200x Faster Dot Products & Similarity Metrics — for Python, Rust, C, JS, and Swift, supporting f64, f32, f16 real & complex, i8, and bit vectors using SIMD for both AVX2, AVX-512, NEON, SVE, & SVE2 📐

Library for specialized dense and sparse matrix operations, and deep learning primitives.

Fastest Integer Compression

SIMD-accelerated base64 codecs

🚀 Fast C/C++ bit population count library

Agenium Scale vectorization library for CPUs and GPUs

Turbo Base64 - Fastest Base64 SIMD:SSE/AVX2/AVX512/Neon/Altivec - Faster than memcpy!

TurboRLE-Fastest Run Length Encoding

⚡️⚡️⚡️Blazing fast correlation functions on the CPU.

SIMD macro assembler unified for ARM, MIPS, PPC and x86

A general purpose machine code manipulation library for x86-32 (IA-32) and x86-64 (AMD64) architectures (Assembler, Disassembler, Library).

Fast UTF-8 validation with range algorithm (NEON+SSE4+AVX2)

Optimized Recursive Bilateral Filter

Fastest Histogram Construction

Transpose: SIMD Integer+Floating Point Compression Filter

Fast C functions for the computing the positional popcount (pospopcnt).

How fast can we brute force a 64-bit comparison?

Fast C header-only library for popcnt, pospopcnt, and set algebraic operations