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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7159) Normalize unit of resource objects in RM and avoid to do unit conversion in critical path
Date Fri, 03 Nov 2017 08:51:02 GMT

    [ https://issues.apache.org/jira/browse/YARN-7159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16237300#comment-16237300
] 

Sunil G commented on YARN-7159:
-------------------------------

[~manirajv06@gmail.com] Also one more thing. I tested performance UT test also with this patch.
Not much regression. However please run these tests against and compare with this patch also.
So we can see how much performance improvement this patch is bringing.

{{mvn test -Dtest=TestCapacitySchedulerPerf#testUserLimitThroughputForTwoResources -DRunCapacitySchedulerPerfTests=true}}

> Normalize unit of resource objects in RM and avoid to do unit conversion in critical
path
> -----------------------------------------------------------------------------------------
>
>                 Key: YARN-7159
>                 URL: https://issues.apache.org/jira/browse/YARN-7159
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Manikandan R
>            Priority: Critical
>         Attachments: YARN-7159.001.patch, YARN-7159.002.patch, YARN-7159.003.patch, YARN-7159.004.patch,
YARN-7159.005.patch, YARN-7159.006.patch, YARN-7159.007.patch, YARN-7159.008.patch, YARN-7159.009.patch,
YARN-7159.010.patch, YARN-7159.011.patch
>
>
> Currently resource conversion could happen in critical code path when different unit
is specified by client. This could impact performance and throughput of RM a lot. We should
do unit normalization when resource passed to RM and avoid expensive unit conversion every
time.



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