[jira] Commented: (DIRSTUDIO-658) Exiting Directory Studio consumes CPU for couple of minutes

["Stefan Seelmann (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DIRSTUDIO-658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868801#action_12868801 ] 

Stefan Seelmann commented on DIRSTUDIO-658:
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I could reproduce this issue on linux.

I observed that it takes longer the more connections are defined in the connections view. So I created some thread dumps with jstack while Studio is shutting down. The result worries me: We call disconnect() for each connection and that calls System.gc(). I'll try to remove at least the System.gc() call because it is totally nonsense.

"main" prio=10 tid=0x0000000041164000 nid=0x865 waiting on condition [0x00007fed487b0000]
   java.lang.Thread.State: RUNNABLE
	at java.lang.Runtime.gc(Native Method)
	at java.lang.System.gc(System.java:926)
	at org.apache.directory.studio.connection.core.io.jndi.JNDIConnectionWrapper.disconnect(JNDIConnectionWrapper.java:243)
	at org.apache.directory.studio.connection.core.ConnectionCorePlugin.stop(ConnectionCorePlugin.java:157)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:840)


> Exiting Directory Studio consumes CPU for couple of minutes
> -----------------------------------------------------------
>
>                 Key: DIRSTUDIO-658
>                 URL: https://issues.apache.org/jira/browse/DIRSTUDIO-658
>             Project: Directory Studio
>          Issue Type: Bug
>    Affects Versions: 1.5.2, 1.5.3
>         Environment: Windows 7 64-bit, 6 GB RAM
>            Reporter: Aleks M
>            Priority: Minor
>
> When exiting Directory Studio it goes into some kind of "overdrive" and the process starts to consume 50% of my CPU, i.e. one entire core for 1,5-2,5 minutes before quitting.
> Looking at the process using Process Explorer on the Threads tab it shows a thread with a start address of: MSVCR71.dll!_endthread+0x31 consuming all that CPU time.
> Any idea why it could be doing that?

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