google/highway
Performance-portable, length-agnostic SIMD with runtime dispatch
A star delta has been computed for 62,252 of 63,106 tracked repositories in this period, and only those can be ranked in it.
A repository missing here has not been measured far enough back yet. That does not mean it did not move.
Star counts measured between 07:55 and 16:48 (BKK).
Performance-portable, length-agnostic SIMD with runtime dispatch
Janas-LLM: large mixture-of-experts language models on ordinary computers, in C. Experts streamed from NVMe, with or without a GPU.
Fast inference engine for Transformer models
Strata fork: Qwen3.8-Flash-Next 125B MoE in NVFP4 on one RTX 20-50 card (12 GB+) and 64 GB of RAM or more. Setup installs our GPTQ quants (huihui abliterated, OrcaRouter) from Hugging Face. CPU experts on AVX-512 or AVX2 (+AVX-VNNI), all experts in RAM from 92 GB, a low-RAM mode below, vision, W4A8 prompts. Windows / CUDA 13.
DirectXMath is an all inline SIMD C++ linear algebra library for use in games and graphics apps
Expressive Vector Engine - SIMD in C++ Goes Brrrr
Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks
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.
A tiny neural-network framework in pure Go with AVX2 SIMD kernels (GOEXPERIMENT=simd)
🚀 Fast prime number generator
exact tokenizers ids, as fast as the hardware allows
That's all 11 repositories in this period.