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https://issues.apache.org/jira/browse/NETBEANS-2525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16862992#comment-16862992
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Christian Lenz commented on NETBEANS-2525:
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And what if that makes a difference? To say: don't load a lot projects is not
an option at the end. Will check whether there is a specific project that makes
it or not.
> Background Scanning Process for first NetBeans start took more than 15min
> -------------------------------------------------------------------------
>
> Key: NETBEANS-2525
> URL: https://issues.apache.org/jira/browse/NETBEANS-2525
> Project: NetBeans
> Issue Type: Bug
> Components: ide - Performance
> Affects Versions: 11.0
> Environment: Product Version: Apache NetBeans IDE 11.0 (Build
> incubator-netbeans-release-404-on-20190319)
> Java: 11.0.2; Java HotSpot(TM) 64-Bit Server VM 11.0.2+9-LTS
> Runtime: Java(TM) SE Runtime Environment 11.0.2+9-LTS
> System: Windows 10 version 10.0 running on amd64; Cp1252; de_DE (nb)
> User directory: C:\Users\Chrl\AppData\Roaming\NetBeans\11.0
> Cache directory: C:\Users\Chrl\AppData\Local\NetBeans\Cache\11.0
> Reporter: Christian Lenz
> Priority: Critical
> Labels: performance
> Attachments: 11.0 - messages.log, 11.0 - uigestures, Screenshot from
> 2019-05-15 09-10-54.png, nb-11.0-selfsampler.npss,
> nb-11.0-threaddump-1557855250946.tdump, windows security options.png
>
>
> Steps to reproduce:
> * Open NetBeans 11.0 for the very first time
> * Choose yes to import settings from NetBeans 10.0 (No plugins, just settings)
> * After NetBeans opens, It imported 33 projects from my old NetBeans instance.
> * Install nb-javac.
> * It opens the projects.
> * Background scanning comes ups, need couple of minutes
> * Because of some HTML5 projects, Oracle JS Parser implementation installer
> comes up
> * Install Oracle JS Parser Implementation.
> * After first background scanning is finished the next one is coming up and
> takes even longer.
> * Waiting until everything is finish. Round about 15-17 min.
> I added a heap dump, created via Visual VM (In case of sensitive data, I
> removed the link, please give me a private link where I can upload it.
> No I don't want to not use importing settings. First it is possible and
> needed and second because it is not a real world case. I want my settings
> from my old IDE and all my opened projects. I don't want to import/open them
> one after one again, this is not a use case. And I don't want to make the
> settings again and again, switching to a new version. Of course it will not
> running as long as I open NetBeans w/o importing settings and opening all
> projects but again this doesn't make sense.
> My projects are:
> * 5 Maven
> * 1 PHP
> * 4 HTML5
> * 14 Ant based NetBeans modules (Some 3rd-party, some from the Core)
> * 8 Maven based NetBeans modules (all 3rd-party)
> * 1 NetBeans Module suite project
> What information do you need more? I will add the messages.log too, but I
> need to clean up my user dir again, because I opened NetBeans after the
> profiling again.
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