[infinispan-issues] [JBoss JIRA] (ISPN-871) Out-of-heap data container implementation

[Manik Surtani (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717161#comment-12717161 ] 

Manik Surtani commented on ISPN-871:
------------------------------------

Rather than using a standard hashmap in C, what about the concurrent hashmap from TBB?  http://threadingbuildingblocks.org/
                
> Out-of-heap data container implementation
> -----------------------------------------
>
>                 Key: ISPN-871
>                 URL: https://issues.jboss.org/browse/ISPN-871
>             Project: Infinispan
>          Issue Type: Feature Request
>          Components: Configuration
>            Reporter: Manik Surtani
>            Assignee: Alban Seurat
>              Labels: gc, jni, native, performance, research
>             Fix For: 5.2.0.Alpha4, 5.2.0.Final
>
>
> The DataContainer interface could be implemented using a off-heap impl in C, using mmap.  It would require custom memory management (gc-lite?) to reclaim free space, as well as reimplementing of eviction algorithms to maintain the contract of a self-sizing data container, but the benefits of this would be the ability to address very large amounts of memory with minimal gc overhead from the JVM.

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