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https://issues.apache.org/jira/browse/MYFACES-1749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Kurz updated MYFACES-1749:
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Status: Patch Available (was: Open)
> Performance Improvements
> ------------------------
>
> Key: MYFACES-1749
> URL: https://issues.apache.org/jira/browse/MYFACES-1749
> Project: MyFaces Core
> Issue Type: Improvement
> Affects Versions: 1.2.1-SNAPSHOT
> Reporter: Michael Kurz
> Fix For: 1.2.1-SNAPSHOT
>
> Attachments: myfaces1749-patch.zip
>
>
> Last week I did some JMeter testing, profiling and code checking on MyFaces
> to try increase the overall performance. Here are my suggestions for
> improvement:
> *) _ComponentAttributesMap
> I introduced a cache for maps with component attributes. This cache avoids
> rebuilding the map for every instance of the same component class. It is
> implemented using a WeakHashMap to allow the GC to remove entries that are
> not referenced in any instance.
> *) UIComponentBase
> Made a few changes in isIdValid as it is called quite often. The new id is
> now checked against the old id and if it is the same it is assumed as valid
> (avoids checking chars). Additionally I use isLetterOrDigit() and access
> string chars directly insted of fetching an array first.
> *) ImplicitObjectResolver
> I replaced List with Map to avoid iteration over lists.
> *) HtmlResponseWriterImpl
> Use new method of HTMLEncoder for char[]
> *) HTMLEncoder
> Improved performance of encode mthod and added a new one that takes a char[]
> und directly writes to a writer.
> *) UnicodeEncoder
> Replaced StringBuffer with StringBuilder.
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