JLBH

A modern replacement for Redis and Memcached

A blazingly fast multi-language serialization framework powered by JIT and zero-copy.

Fast hierarchical agglomerative clustering in Rust.

python wrapper around C++ spdlog (git@github.com:gabime/spdlog.git)

MLX: An array framework for Apple silicon

Sampling profiler for Python programs

Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python with AI-powered optimization proposals

🤗 Optimum Intel: Accelerate inference with Intel optimization tools

SOTA low-bit LLM quantization (INT8/FP8/MXFP8/INT4/MXFP4/NVFP4) & sparsity; leading model compression techniques on PyTorch, TensorFlow, and ONNX Runtime

Fine-tuning & Reinforcement Learning for LLMs. 🦥 Train OpenAI gpt-oss, DeepSeek, Qwen, Llama, Gemma, TTS 2x faster with 70% less VRAM.

A framework for distributed systems verification, with fault injection

pg-index-health is an embeddable schema linter for PostgreSQL that detects common anti-patterns and promotes best practices.

Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events

A biased barometer for gauging the relative speed of some regex engines on a curated set of tasks.

A portable fork of the high-performance regular expression matching library

Repository for OpenJDK Mission Control, a production time profiling and diagnostics tools suite. https://openjdk.org/projects/jmc

Experimental JFR parser

A small Java library for using the JMC JFR API to write RecordedEvents to file

JStall is a small command-line tool for one-shot inspection of running JVMs using thread dumps and short, on-demand profiling.

Turning JFR files into DuckDB databases

A high performance caching library for Java

Google core libraries for Java

A Java library to perform direct I/O in Linux, bypassing file page cache.

pganalyze statistics collector for gathering PostgreSQL metrics and log data

Better JIT for Postgres

Versioned, fast and scalable columnar database.