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From "Naumova Natalya (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-5281) [drlvm][startup][performance] mapping bootstrap jars directly into memory
Date Mon, 10 Dec 2007 13:38:43 GMT

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

Naumova Natalya  updated HARMONY-5281:
--------------------------------------

    Summary: [drlvm][startup][performance] mapping bootstrap jars directly into memory  (was:
mapping bootstrap jars directly into memory)

> [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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