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From "Pavel Pervov (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-5281) [drlvm][startup][performance][classloader] mapping bootstrap jars directly into memory
Date Wed, 26 Mar 2008 06:19:26 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pavel Pervov updated HARMONY-5281:
----------------------------------

    Patch Info: [Patch Available]

> [drlvm][startup][performance][classloader] 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 
>            Assignee: Pavel Pervov
>         Attachments: bootstrap_jar_mapping.patch, 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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