harmony-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Sian January (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HARMONY-5672) [classlib][pack200] Performance improvements for pack200
Date Tue, 01 Apr 2008 08:52:28 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sian January resolved HARMONY-5672.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 5.0M6

Thanks Andrew - that's a really noticable improvement.  Applied a slightly modified patch
at r643321.  I've removed some commented out code from the original patch - hope that's ok.

> [classlib][pack200] Performance improvements for pack200
> --------------------------------------------------------
>
>                 Key: HARMONY-5672
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5672
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>         Environment: All Pack200
>            Reporter: Andrew Cornwall
>            Assignee: Sian January
>             Fix For: 5.0M6
>
>         Attachments: main.patch
>
>
> This patch does three things:
>  - improves ClassConstantPool by caching some objects for O(1) rather than O(n) retrieval
>  - caches a String generated by CPNameAndType instead of regenerating it each time
>  - short-circuits more CPRef equals() calls
> This reduces runtime by about 40%.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message