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https://issues.apache.org/jira/browse/WICKET-2127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12676615#action_12676615
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Sean Patrick Floyd commented on WICKET-2127:
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Forgot to mention: The Source file in question is wicket-ajax.js in package
org.apache.wicket.ajax
> Javascript function Wicket.replaceAll is unbearably slow
> --------------------------------------------------------
>
> Key: WICKET-2127
> URL: https://issues.apache.org/jira/browse/WICKET-2127
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.4-RC2
> Environment: Firefox 3.0.5, Opera 9.2 (windows)
> Reporter: Sean Patrick Floyd
> Fix For: 1.4-RC3
>
> Attachments: wicketReplaceAll.js
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> I use AbstractAjaxTimerBehavior to update many different components on my
> pages periodically.
> After a while, the browser occupies 50% or more of the system resources.
> I used the javascript profiler in firebug and found that Wicket.replaceAll is
> responsible for 60+ percent of javascript processing time.
> The problem is that sequential string processing is used instead of much
> faster regular expressions
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