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Posted to dev@mina.apache.org by "Emmanuel Lecharny (JIRA)" <ji...@apache.org> on 2012/07/10 17:00:39 UTC
[jira] [Updated] (DIRMINA-681) Strange CPU peak occuring at fixed
interval when several thousand connections active
[ https://issues.apache.org/jira/browse/DIRMINA-681?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Emmanuel Lecharny updated DIRMINA-681:
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Affects Version/s: (was: 2.0.0-M4)
> Strange CPU peak occuring at fixed interval when several thousand connections active
> ------------------------------------------------------------------------------------
>
> Key: DIRMINA-681
> URL: https://issues.apache.org/jira/browse/DIRMINA-681
> Project: MINA
> Issue Type: Task
> Components: Core
> Affects Versions: 2.0.0-RC1
> Environment: Windows Vista Ultimate 64-bit (on 64-bit Sun JDK 1.6.0_18). Intel Core 2 Quad Core Q9300 2,5 GHz, 8 GB RAM
> Reporter: Mauritz Lovgren
> Fix For: 2.0.5
>
> Attachments: screenshot-1.jpg, screenshot-2.jpg, screenshot-3.jpg, screenshot-4.jpg
>
>
> Observing strange CPU activity occuring at regular (seemingly fixed) interval with no protocol traffic activity.
> See attached window capture of task manager that shows this with 3000 active connections.
> Is there some kind of cleanup occuring within MINA core at a predefined interval?
> The 3000 connections in the example above connects within 250 seconds. A normal situation would be that these connections are established over a longer period of time, perhaps spreading the CPU peaks shown above as well, flattening the curve.
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