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https://issues.apache.org/jira/browse/MESOS-4505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15120708#comment-15120708
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Joris Van Remoortere commented on MESOS-4505:
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{code}
commit e806594c5b9a151f32b6bbad3432bb2f060cb348
Author: Joris Van Remoortere <[email protected]>
Date: Wed Jan 27 19:14:21 2016 -0800
Allocator Performance: Simplified Sorter's 'CalculateShare'.
Used existing functions to aggregate Scalars in the 'Resources' object.
Review: https://reviews.apache.org/r/42890/
{code}
> Hierarchical allocator performance is slow due to Quota
> -------------------------------------------------------
>
> Key: MESOS-4505
> URL: https://issues.apache.org/jira/browse/MESOS-4505
> Project: Mesos
> Issue Type: Improvement
> Components: allocation
> Reporter: Joris Van Remoortere
> Assignee: Joris Van Remoortere
> Priority: Blocker
> Labels: mesosphere
> Fix For: 0.27.0
>
>
> Since we do not strip the non-scalar resources during the resource arithmetic
> for quota, the performance can degrade significantly, as currently resource
> arithmetic is expensive.
> One approach to resolving this is to filter the resources we use to perform
> this arithmetic to only use scalars. This is valid as quota can currently
> only be set for scalar resource types.
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