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From "Xiao-Feng Li (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HARMONY-11) GC, Heap and Object Model redesign
Date Fri, 18 May 2007 05:17:16 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-11?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao-Feng Li resolved HARMONY-11.
---------------------------------

    Resolution: Incomplete
      Assignee: Xiao-Feng Li

experimental code for BootJVM

> GC, Heap and Object Model redesign
> ----------------------------------
>
>                 Key: HARMONY-11
>                 URL: https://issues.apache.org/jira/browse/HARMONY-11
>             Project: Harmony
>          Issue Type: Improvement
>          Components: VM
>            Reporter: Robin Garner
>         Assigned To: Xiao-Feng Li
>         Attachments: gc.tgz
>
>
> The object model / heap implementation/garbage collector for  bootJVM need redesign.
 Major points are:
> 1) per-object metadata to be 
>   - reduced to <= 3 words
>   - re-cast as an object header
> 2) Object references redesigned as pointers rather than hashes or table indexes
> 3) Garbage collection metadata integrated with the object header
>  
> 4) GC maps for stacks produced at GC-safe points
> Example code is attached.

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