ClickHouse® is a real-time analytics database management system

A library that provides an embeddable, persistent key-value store for fast storage.

The MongoDB Database

Cloud-native high-performance edge/middle/service proxy

🚀 Coroutine-based concurrency library for PHP

MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.

Easy to use open source fast database for search | Good alternative to Elasticsearch now | Drop-in replacement for E in the ELK stack

Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events

Pikiwidb is a Redis-Compatible database developed by Qihoo's infrastructure team.

An open sourced implementation of Bw-Tree in SQL Server Hekaton

source code