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https://issues.apache.org/jira/browse/MYFACES-2780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12885801#action_12885801
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Michael Concini commented on MYFACES-2780:
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Startup footprint can be an issue in production in many cases, especially when
you take into considerations virtual machine environments where the memory
allocated may be limited. The reason in particular that this lazy loading
would be effective in a production environment however is due to the previous
behavior loading all application resources into memory that are described by
large widgets libraries even if an application might only use a small subset of
these. It also is consistent with the behavior of the RI as they appear to be
doing lazy loading after taking comparative heapdumps and analyzing classes
loaded.
Perhaps we should allow this to be configurable whether to load application
resources lazy or aggressive?
> MyFaces performance improvements for production
> ------------------------------------------------
>
> Key: MYFACES-2780
> URL: https://issues.apache.org/jira/browse/MYFACES-2780
> Project: MyFaces Core
> Issue Type: Improvement
> Components: General
> Affects Versions: 2.0.0
> Reporter: Michael Concini
> Assignee: Michael Concini
> Priority: Minor
> Fix For: 2.0.1
>
>
> Several fixes to enhance startup memory footprint and runtime performance
> taking advantage of ProjectStage.
> -lazy loading of validators, converters, behaviors,components - can have a
> substantial impact on startup footprint in applications with multiple or very
> large widget libraries.
> Turn off some updating of resources for ProjectStage=Production by default
> (can always override using javax.faces.FACELETS_REFRESH_PERIOD)
> -change default facelets refresh interval to -1 when projectStage is
> production. This by itself gains a 60% improvement in throughput.
> -disable reloading of web.xml and faces-config after the first load.
> -store a map to cache Class to listenerFor and resourceDependency annotations
> when in production.
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