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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2014) Performance: AM scaleability is 10% slower in 2.4 compared to 0.23.9
Date Tue, 13 May 2014 18:22:21 GMT

     [ https://issues.apache.org/jira/browse/YARN-2014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli updated YARN-2014:
------------------------------------------

    Assignee: Jason Lowe

> Performance: AM scaleability is 10% slower in 2.4 compared to 0.23.9
> --------------------------------------------------------------------
>
>                 Key: YARN-2014
>                 URL: https://issues.apache.org/jira/browse/YARN-2014
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.4.0
>            Reporter: patrick white
>            Assignee: Jason Lowe
>
> Performance comparison benchmarks from 2.x against 0.23 shows AM scalability benchmark's
runtime is approximately 10% slower in 2.4.0. The trend is consistent across later releases
in both lines, latest release numbers are:
> 2.4.0.0     runtime 255.6 seconds (avg 5 passes)
> 0.23.9.12 runtime 230.4 seconds (avg 5 passes)
> Diff: -9.9% 
> AM Scalability test is essentially a sleep job that measures time to launch and complete
a large number of mappers.
> The diff is consistent and has been reproduced in both a larger (350 node, 100,000 mappers)
perf environment, as well as a small (10 node, 2,900 mappers) demo cluster.



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