Thursday, November 7, 2013

Netty 4 at Twitter: Reduced GC Overhead

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The Netty Project released the first version of Netty 4 in July. It has significant performance improvements primarily from reducing garbage collection overhead. Integrating Netty 4 at Twitter has led to a five times performance gain, but with some costs.

Trustin Lee, the founder of the Netty Project and a software engineer at Twitter, has been writing network application frameworks since 2003. The first public release of Netty was in June of 2004. The project's homepage describes Netty as "an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients."

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