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https://issues.apache.org/jira/browse/TEZ-1090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14010128#comment-14010128
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Hitesh Shah commented on TEZ-1090:
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[~rajesh.balamohan] Looks like this needs a re-base.
> Micro optimization - Remove duplicate updateProcessTree() in
> TaskCounterUpdater
> -------------------------------------------------------------------------------
>
> Key: TEZ-1090
> URL: https://issues.apache.org/jira/browse/TEZ-1090
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Attachments: TEZ-1090-v1.patch, TEZ-1090-v2.patch
>
>
> In TaskCounterUpdater, updateProcessTree() is invoked from
> initResourceCalculatorPlugin & recordInitialCpuStats. With
> ResourceCalculatorProcessTree, close to 300-500 ms is wasted in every task
> launch.
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