[jira] Updated: (HARMONY-5688) [drlvm][gc]Map/Unmap based LOS

["Chen Yang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-5688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chen Yang updated HARMONY-5688:
-------------------------------

    Attachment: los-improvement.patch

Map/Unmap based LOS

> [drlvm][gc]Map/Unmap based LOS
> ------------------------------
>
>                 Key: HARMONY-5688
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5688
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>    Affects Versions: 5.0M6
>         Environment: All environment
>            Reporter: Chen Yang
>             Fix For: 5.0M6
>
>         Attachments: los-improvement.patch
>
>
> The patch provides the support of map/unmap based LOS.It is enabled by default, thus to remove the possibility of some OOM problem in GC. Original boundary adjustment based implementation can be enabled by specifying the -XX:gc.share_los_boundary=true, which is good for performance evaluation with large fixed heap size. 
> Map/Unmap with large page is still in progress.

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