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https://issues.apache.org/jira/browse/YARN-6679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16033309#comment-16033309
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Daniel Templeton commented on YARN-6679:
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Thanks, [~daryn]. One comment: in the {{Resource.compareTo()}} method, you can
replace the final ternary with {{Math.signum()}}.
How thoroughly has this been tested? Wanna add some unit tests to confirm the
{{newInstance()}} methods and the PB conversion work as expected?
> Reduce Resource instance overhead via non-PBImpl
> ------------------------------------------------
>
> Key: YARN-6679
> URL: https://issues.apache.org/jira/browse/YARN-6679
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Affects Versions: 2.8.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: YARN-6679.branch-2.patch, YARN-6679.trunk.patch
>
>
> Creating and using transient PB-based Resource instances during scheduling is
> very expensive. The overhead can be transparently reduced by internally
> using lightweight non-PB based instances.
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