[jira] [Comment Edited] (YARN-5764) NUMA awareness support for launching containers

["Ravi Prakash (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-5764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15817623#comment-15817623 ] 

Ravi Prakash edited comment on YARN-5764 at 1/11/17 8:21 AM:
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Hi Devaraj! Thanks for all your work. Do you have any benchmarks results that would illustrate the kind of performance gains that could potentially be realised with this patch? It'd be good if others had an opportunity to test it in their hardware and setup.


was (Author: raviprak):
Hi Devaraj! Thanks for all your work. Do you have any benchmarks results that would illustrate the kind of performance gains that could potentially be realised with this patch?

> NUMA awareness support for launching containers
> -----------------------------------------------
>
>                 Key: YARN-5764
>                 URL: https://issues.apache.org/jira/browse/YARN-5764
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager, yarn
>            Reporter: Olasoji
>            Assignee: Devaraj K
>         Attachments: NUMA Awareness for YARN Containers.pdf, YARN-5764-v0.patch, YARN-5764-v1.patch
>
>
> The purpose of this feature is to improve Hadoop performance by minimizing costly remote memory accesses on non SMP systems. Yarn containers, on launch, will be pinned to a specific NUMA node and all subsequent memory allocations will be served by the same node, reducing remote memory accesses. The current default behavior is to spread memory across all NUMA nodes.



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