[jira] [Closed] (MIME4J-305) ContentUtil::decode can avoid using StringBuilder

["Benoit Tellier (Jira)" <mi...@james.apache.org>]

     [ https://issues.apache.org/jira/browse/MIME4J-305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benoit Tellier closed MIME4J-305.
---------------------------------
    Resolution: Fixed

> ContentUtil::decode can avoid using StringBuilder
> -------------------------------------------------
>
>                 Key: MIME4J-305
>                 URL: https://issues.apache.org/jira/browse/MIME4J-305
>             Project: James Mime4j
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 0.8.5
>            Reporter: Benoit Tellier
>            Priority: Major
>             Fix For: 0.8.6
>
>         Attachments: after_decode.png, before_decode.png
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> StringBuilder is an expensive construct, we spend most of our time, for each character, ensuring the capacity of the string builder.
> Size being known, the operation simple, we can directly operate on top of a char array.
> Gains: 78%
> See the attached flame graphs:
>  - Before
>  - After (combine with MIME4J-304 and unfold operations)



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