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https://issues.apache.org/jira/browse/YARN-8320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jiandan Yang  updated YARN-8320:
--------------------------------
    Summary: Add support CPU isolation for latency-sensitive  (LS) service  
(was: Add support CPU isolation for latency-sensitive  (LS) tasks)

> Add support CPU isolation for latency-sensitive  (LS) service
> -------------------------------------------------------------
>
>                 Key: YARN-8320
>                 URL: https://issues.apache.org/jira/browse/YARN-8320
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager
>            Reporter: Jiandan Yang 
>            Priority: Major
>         Attachments: CPU-isolation-for-latency-sensitive-services-v1.pdf
>
>
> Currently NodeManager uses “cpu.cfs_period_us”, “cpu.cfs_quota_us” and 
> “cpu.shares”  to isolate cpu resource. However,
> * Linux Completely Fair Scheduling (CFS) is a throughput-oriented scheduler; 
> no support for differentiated latency
> * Request latency of services running on container may be frequent shake when 
> all containers share cpus, and latency-sensitive services can not afford in 
> our production environment.
> So we need more finer cpu isolation.
> My co-workers and I propose a solution using cgroup cpuset to binds 
> containers to different processors according to a [Google’s 
> PPT|http://schd.ws/hosted_files/lcccna2016/a7/CAT%20@%20Scale.pdf].
> Later I will upload a detailed design doc.
>  



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