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Posted to dev@directory.apache.org by "Aleks M (JIRA)" <ji...@apache.org> on 2010/05/12 22:30:45 UTC
[jira] Created: (DIRSTUDIO-658) Exiting Directory Studio consumes
CPU for couple of minutes
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: 1.5.3, 1.5.2
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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[jira] Commented: (DIRSTUDIO-658) Exiting Directory Studio consumes
CPU for couple of minutes
Posted by "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:
-------------------------------------------
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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[jira] Commented: (DIRSTUDIO-658) Exiting Directory Studio consumes
CPU for couple of minutes
Posted by "Jeff MAURY (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/DIRSTUDIO-658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868804#action_12868804 ]
Jeff MAURY commented on DIRSTUDIO-658:
--------------------------------------
Calling System.gc from a user code should be forbidden.
May be detected by an existing/to be created PMD rule
> 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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