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https://issues.apache.org/jira/browse/MYFACES-3528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13257632#comment-13257632
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Leonardo Uribe commented on MYFACES-3528:
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A lot of improvements has been already done in 2.1.x / 2.0.x, but they are not
ported yet to 1.2.x / 1.1.x because since these two versions are in maintenance
stage, care must be taken to ensure do not break existing applications, and
most of the interest is in JSF 2.0/2.1/2.2. If you provide a patch, I'll check
it and commit it for you. Note for most of the changes, it s a "backport",
which means just take the improvement from 2.0.x or 1.2.x and apply it in 1.1.x.
> CLONE - Performance Improvements
> --------------------------------
>
> Key: MYFACES-3528
> URL: https://issues.apache.org/jira/browse/MYFACES-3528
> Project: MyFaces Core
> Issue Type: Improvement
> Reporter: Krashan Brahmanjara
> Assignee: Martin Marinschek
> Fix For: 1.2.2
>
>
> 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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