[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-5923) After several files deletion eclipse decelerate and takes 50% cpu time

[Alexey Kazakov (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBIDE-5923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12516448#action_12516448 ] 

Alexey Kazakov commented on JBIDE-5923:
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After some playing with generating/removing entityes I catched a big CPU usege. And this process takes a lot of time. But Progress view is emty. Suspending Eclipse threads I see Package explorer is being refreshed and it parses (unzip) jars from JBoss AS. So such IO oparations are very slow and it's a resoun why it takes so much time. I guess you see KB validator process in Progress view just because Package Explorer refreshing eating all the CPU resources and it makes KB Validator works so slow too. In my case KB validator seems to managed to finish its work before Package Explorer starts refreshing. KB Validator can be slow for big projects but it doesn't take much CPU time.
I have no idea why Package Explorer make so deep and slow refreshing in that case.

> After several files deletion eclipse decelerate and takes 50% cpu time
> ----------------------------------------------------------------------
>
>                 Key: JBIDE-5923
>                 URL: https://jira.jboss.org/jira/browse/JBIDE-5923
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>    Affects Versions: 3.1.0.CR2
>            Reporter: Vitali Yemialyanchyk
>         Attachments: screenshot-1.jpg, screenshot-2.jpg, screenshot-3.jpg, screenshot-4.jpg, screenshot-5.jpg
>
>
> 1) as a test project I use dvdstore;
> 2) dvdstore-ejb - I change hibernate-console.properties to use MySQL instead of HQL db for dvdstore-ejb Hibernate Console Configuration:
> #hibernate.connection.password=
> #hibernate.connection.username=sa
> #hibernate.connection.driver_class=org.hsqldb.jdbcDriver
> #hibernate.dialect=org.hibernate.dialect.HSQLDialect
> #hibernate.connection.url=jdbc:hsqldb:MyDB
> hibernate.connection.password=p at ssw0rd
> hibernate.connection.username=root
> hibernate.connection.driver_class=com.mysql.jdbc.Driver
> hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
> hibernate.connection.url=jdbc:mysql://localhost:3306/jpa3
> 3) I generate Hibernate db for MySQL via dvdstore-ejb Hibernate Console Config -> context menu -> Run Schema export;
> 4) then I run Seam Generate Entities for dvdstore project - the entities was generated succesfully;
> 5) rebuild dvdstore-ejb Hibernate Console Config - get exception - with duplicate Inventory - ok that is right;
> 6) so I delete generated entities;
> 7) during 15 minutes my rbds decelerate - it works, but very slowly; no exceptions;
> 8) then I get situation - screenshort-2 - it start to work normally;

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