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https://issues.apache.org/jira/browse/NETBEANS-1932?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16745858#comment-16745858
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Junior Dussouillez commented on NETBEANS-1932:
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Since I reported the issue, I got the problem 4-5 times and I noticed that each
time it happens, the "Checking for external changes" task is running.
If I'm fast enough to cancel it when my computer begins to be slow, the IDE
stays alive because the CPU load decreases a few seconds later. Otherwise the
CPU goes to 100% during 30 seconds or more.
I will try to take some time to profile the IDE to give you more informations.
> Random excessive CPU load (100%)
> --------------------------------
>
> Key: NETBEANS-1932
> URL: https://issues.apache.org/jira/browse/NETBEANS-1932
> Project: NetBeans
> Issue Type: Bug
> Affects Versions: 9.0, 10.0
> Environment: Linux, 4.10.0-38-generic, amd64
> OpenJDK 64-Bit Server VM, 11.0.1+13-Ubuntu-3ubuntu116.04ppa1, OpenJDK Runtime
> Environment, 11.0.1+13-Ubuntu-3ubuntu116.04ppa1
> Apache NetBeans IDE 10.0 (Build incubator-netbeans-release-380-on-20181217)
> Reporter: Junior Dussouillez
> Priority: Major
> Labels: performance
> Attachments: CPU_Load.png, IDE_Log.txt, Netbeans_CPU_Load.png,
> UI_Log.txt
>
>
> Since Netbeans 9.0, I get random excessive CPU load. It can happen twice a
> day or even twice an hour. The UI does not respond and the CPU goes to 100%.
> I have to kill the netbeans process and when I start it again, I get the
> error window (see the UI_Log.txt and IDE_Log.txt log files).
> I remain at your disposal if you need more informations.
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