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Posted to issues@tez.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2014/08/19 10:59:20 UTC

[jira] [Updated] (TEZ-1448) Make WeightedScalingMemoryDistributor as the default memory distributor

     [ https://issues.apache.org/jira/browse/TEZ-1448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Balamohan updated TEZ-1448:
----------------------------------

    Attachment: TEZ-1448.1.patch

[~sseth] - Can you please review when you have time?

> Make WeightedScalingMemoryDistributor as the default memory distributor
> -----------------------------------------------------------------------
>
>                 Key: TEZ-1448
>                 URL: https://issues.apache.org/jira/browse/TEZ-1448
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>         Attachments: TEZ-1448.1.patch
>
>
> Currently Tez uses ScalingAllocator; WeightedScalingMemoryDistributor provides better control over ScalingAllocator.  
> In certain DAG executions, response time improvements of over 6% have been observed at 10 TB scale and ~26% runtime improvement in memory intensive reducers.



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