[jira] [Resolved] (ARROW-8847) [C++] Pass task size / metrics in Executor API

["Francois Saint-Jacques (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-8847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Francois Saint-Jacques resolved ARROW-8847.
-------------------------------------------
    Fix Version/s: 1.0.0
       Resolution: Fixed

Issue resolved by pull request 7225
[https://github.com/apache/arrow/pull/7225]

> [C++] Pass task size / metrics in Executor API
> ----------------------------------------------
>
>                 Key: ARROW-8847
>                 URL: https://issues.apache.org/jira/browse/ARROW-8847
>             Project: Apache Arrow
>          Issue Type: Wish
>          Components: C++
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.0.0
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> For now, our ThreadPool implementation would ignore those metrics, but other implementations may use it for custom ordering.
> Example metrics:
> * IO size (number of bytes)
> * CPU cost (~ number of instructions)
> * Priority (opaque integer? lower is more urgent)



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