[
https://issues.apache.org/jira/browse/ARROW-9707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17176481#comment-17176481
]
Wes McKinney commented on ARROW-9707:
-------------------------------------
I'll be curious what approach you take to prevent IO steps from blocking CPU
work, we still haven't sorted out how we're dealing with that broadly in C++
> [Rust] [DataFusion] Re-implement threading model
> ------------------------------------------------
>
> Key: ARROW-9707
> URL: https://issues.apache.org/jira/browse/ARROW-9707
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: Rust, Rust - DataFusion
> Reporter: Andy Grove
> Assignee: Andy Grove
> Priority: Major
> Fix For: 2.0.0
>
>
> The current threading model is very simple and does not scale. We currently
> use 1-2 dedicated threads per partition and they all run simultaneously,
> which is a huge problem if you have more partitions than logical or physical
> cores.
> This task is to re-implement the threading model so that query execution uses
> a fixed (configurable) number of threads. Work will be broken down into
> stages and tasks and each in-process executor (running on a dedicated thread)
> will process its queue of tasks.
> This process will be driven by a scheduler.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
