For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

BCC - Tools for BPF-based Linux IO analysis, networking, monitoring, and more

memcached development tree

A fast, light-weight proxy for memcached and redis

Embed the Power of Lua into NGINX HTTP servers

Scalable PostgreSQL connection pooler

A Redis HTTP interface with JSON output

C implementation of statsd

Universal configuration library parser

A general purpose, write-back block cache for Linux.

Transparent SSL/TLS proxy for decrypting and diverting network traffic to other programs, such as UTM services, for deep SSL inspection