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From "Sian January (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-5916) [classlib][pack200] Isolating I/O and processing stages
Date Tue, 22 Jul 2008 09:44:31 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sian January reassigned HARMONY-5916:
-------------------------------------

    Assignee: Sian January

> [classlib][pack200] Isolating I/O and processing stages 
> --------------------------------------------------------
>
>                 Key: HARMONY-5916
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5916
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>         Environment: Latest pack200
>            Reporter: Aleksey Shipilev
>            Assignee: Sian January
>         Attachments: pack200-isolate-v2.patch, pack200-isolate-v3.patch, pack200-isolate-v4.patch
>
>
> So far the unpacking in pack200 implementation is strongly coupled with I/O. Because
I/O is essentially serial, there's no opportunity for paralleling the unpacking. This issue
breaks the unpacking into three parts: reading, processing and writing. The target is to concentrate
as much as possible work into the processing stage, decoupling it from I/O. Then the processing
stage could be done concurrently on multiple Segments.

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