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Posted to commits@harmony.apache.org by "Aleksey Shipilev (JIRA)" <ji...@apache.org> on 2008/07/24 10:49:32 UTC
[jira] Closed: (HARMONY-5916) [classlib][pack200] Isolating I/O and
processing stages
[ https://issues.apache.org/jira/browse/HARMONY-5916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aleksey Shipilev closed HARMONY-5916.
-------------------------------------
Verified, thanks.
> [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
> Fix For: 5.0M7
>
> 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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