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What is ØMQ?

• ØMQ intends to be a new layer of the Internet stack.
• It's both protocol and implementation.
• Its added value is providing communication patterns between multiple applications.
• It allows you to write server applications in couple of lines of code.
• It makes distributing data to many applications easy.
• It provides means to implement HPC clusters painlessly.
• Aside of being a layer in the stack ØMQ project comes with daemons to route application data across the network according to your needs.
• ØMQ can be used to communicate over the network, between processes, between threads in a single process or to do all of it at the same time.

What should I expect from ØMQ?

• Socket-like API in many different programming languages.
• Message-based communication as opposed to simple stream of bytes.
• Sending and receiving messages asynchronously.
• 30 usec end-to-end latencies and millions of messages per second.
• Low memory footprint. The core requires just a couple of pages in resident memory.
• Support for different underlying protocols: TCP, PGM (reliable multicast), IPC, and more.
• Support for different OSes: HP-UX, Linux, Mac OS X, NetBSD, OpenVMS, Solaris, Windows, and more.
• Support for different microarchitectures: x86, AMD64, SPARC, IA-64, ARM and more.
• LGPL-license.