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https://issues.jenkins-ci.org/browse/JENKINS-13454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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SCM/JIRA link daemon resolved JENKINS-13454.
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Resolution: Fixed
> Optimize the plugin manager
> ---------------------------
>
> Key: JENKINS-13454
> URL: https://issues.jenkins-ci.org/browse/JENKINS-13454
> Project: Jenkins
> Issue Type: Improvement
> Components: update-center
> Environment: Jenkins 1.459, Oracle JDK 1.7, Windows XP
> Reporter: evernat
> Assignee: evernat
> Attachments: monitoring.png
>
>
> In "Manage Jenkins", the plugin manager (aka update center) is rather slow.
> Slow is about 3 to 6 seconds on my windows laptop.
> The http requests of the plugin manager are mostly the slowest of all, as can
> be seen in the joined screenshot of the monitoring plugin.
> The screenshot also shows that those http requests have a high cpu usage.
> The cause of the issue is that for each plugin, the
> UpdateSite.getPlugin(String) and getData() methods read and parse all the
> plugins data from the "updates/default.json" file each time.
> So the more plugins are available, the slower it is.
> I will submit a pull request.
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