[jira] Commented: (HARMONY-5882) [classlib][pack200] Performance improvements for pack200

["Aleksey Shipilev (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HARMONY-5882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12607397#action_12607397 ] 

Aleksey Shipilev commented on HARMONY-5882:
-------------------------------------------

Andrew, what is the contract for this cache? Should it be synchronized externally? 

> [classlib][pack200] Performance improvements for pack200
> --------------------------------------------------------
>
>                 Key: HARMONY-5882
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5882
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>    Affects Versions: 5.0M6
>         Environment: Pack200 HEAD
>            Reporter: Andrew Cornwall
>         Attachments: main.patch, test.patch
>
>
> Attached are some performance improvements for Pack200. They do two things:
>  1. Remove unnecessary conversions to UTF-8 in CPUTF8
>  2. Cache array lookup in SegmentConstantPool
> Hope they work - this is my first try at applying a fix since I've forked.

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