Innovations within reach, Elastic cache beyond the Java heap with IBM eXtremeMemory

WebSphere eXtreme Scale becomes more extreme

From the developerWorks archives

Charles Le Vay and Thomas Gissel

Date archived: January 3, 2017 | First published: March 14, 2012

The 7.1.1 release of IBM® WebSphere® eXtreme Scale introduces an additional in-memory model for elastic caching called IBM eXtremeMemory, which enables you to utilize the system memory outside of the Java™ heap as elastic cache. This allows for smaller Java heap sizes of the WebSphere eXtreme Scale containers and minimizes the effects of garbage collection pauses on transaction response times. Since eXtremeMemory is outside of the Java Virtual Machine (JVM) environment, a new transport called IBM eXtremeIO was developed to facilitate fault tolerance of the eXtremeMemory elastic cache. eXtremeIO enables efficient memory to memory replication between WebSphere eXtreme Scale containers. This article provides an overview of the eXtremeMemory and eXtremeIO features. This content is part of the IBM WebSphere Developer Technical Journal.

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ArticleTitle=Innovations within reach: Elastic cache beyond the Java heap with IBM eXtremeMemory