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From "Vladimir Beliaev (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5281) [drlvm][startup][performance] mapping bootstrap jars directly into memory
Date Fri, 01 Feb 2008 13:43:09 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12564758#action_12564758
] 

Vladimir Beliaev commented on HARMONY-5281:
-------------------------------------------

The bootstrap processing is handled by classloader module, so the JIRA is better be named
as [drlvm][classloader].

> [drlvm][startup][performance] mapping bootstrap jars directly into memory
> -------------------------------------------------------------------------
>
>                 Key: HARMONY-5281
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5281
>             Project: Harmony
>          Issue Type: Sub-task
>          Components: DRLVM
>            Reporter: Naumova Natalya 
>         Attachments: jarmapping.BCP.patch
>
>
> Bootstrap jar files mapping : we can deliver from a big amount of system calls (such
as lseek, read etc) by mapping jars into memory via CreateFileMapping for windows and nmap
for linux. Then we can work using pointer arithmetic only. 
> The same can be done with classlib jars also..

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