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From "Ilya Berezhniuk (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5045) [drlvm][init] Automatic switch to uncompressed mode for large heap
Date Fri, 09 Nov 2007 19:12:51 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12541405

Ilya Berezhniuk commented on HARMONY-5045:

This check is just for trowing away an evidently incorrect combination, when heap size exceeds
the limit for compressed refs.
This value should be changed if compressed mode will support more than 4G heap.

I guess, OS limits checking can be performed by GC before Java heap allocation.
Anyway, if specified heap size exceeds OS limit, then memory allocation in GC will fail, and
GC initialization will return error.

> [drlvm][init] Automatic switch to uncompressed mode for large heap
> ------------------------------------------------------------------
>                 Key: HARMONY-5045
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5045
>             Project: Harmony
>          Issue Type: Sub-task
>          Components: DRLVM
>         Environment: x86_64 Linux/Windows
>            Reporter: Ilya Berezhniuk
>         Attachments: auto_switch.patch

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