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From "Ian Downes (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-2652) Update Mesos containerizer to understand revocable cpu resources
Date Tue, 19 May 2015 22:41:59 GMT

    [ https://issues.apache.org/jira/browse/MESOS-2652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14551381#comment-14551381
] 

Ian Downes commented on MESOS-2652:
-----------------------------------

Borg does prod and non-prod as coarse prioritization bands but supports different priorities
within each.

> Update Mesos containerizer to understand revocable cpu resources
> ----------------------------------------------------------------
>
>                 Key: MESOS-2652
>                 URL: https://issues.apache.org/jira/browse/MESOS-2652
>             Project: Mesos
>          Issue Type: Task
>            Reporter: Vinod Kone
>            Assignee: Ian Downes
>              Labels: twitter
>
> The CPU isolator needs to properly set limits for revocable and non-revocable containers.
> The proposed strategy is to use a two-way split of the cpu cgroup hierarchy -- normal
(non-revocable) and low priority (revocable) subtrees -- and to use a biased split of CFS
cpu.shares across the subtrees, e.g., a 20:1 split (TBD). Containers would be present in only
one of the subtrees. CFS quotas will *not* be set on subtree roots, only cpu.shares. Each
container would set CFS quota and shares as done currently.



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