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https://issues.jenkins-ci.org/browse/JENKINS-12638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=158556#comment-158556
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SCM/JIRA link daemon commented on JENKINS-12638:
------------------------------------------------
Code changed in jenkins
User: tbingaman
Path:
src/main/java/hudson/ivy/IvyModule.java
http://jenkins-ci.org/commit/ivy-plugin/cead62a6ab51f30bb24f9e62dc2febdb70778950
Log:
[FIXED JENKINS-12638] Make dependency graph calculation more efficient by
storing intermediate computational data with the DependencyGraph.
> Rebuilding dependency graph slow on large numbers of Ivy Projects
> -----------------------------------------------------------------
>
> Key: JENKINS-12638
> URL: https://issues.jenkins-ci.org/browse/JENKINS-12638
> Project: Jenkins
> Issue Type: Bug
> Components: ivy
> Reporter: Timothy Bingaman
> Assignee: Timothy Bingaman
>
> Similar issue to [JENKINS-7535], but in the Ivy Plugin instead of the Maven
> Plugin.
> Every time a project is saved, Jenkins rebuilds the dependency graph.
> For Ivy Projects this includes building up a dependency map of all the Ivy
> modules in Jenkins and then applying the build triggers based on that
> information. Currently, this is being done in every single module resulting
> in an operation which is roughly in the order of {{O(n^2 + xn)}} where {{n}}
> is the number of Ivy modules in Jenkins and {{x}} is the average number of
> direct dependencies each module has.
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