[ARROW-14702] [Doc][C++] Document threading model

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.0.0
• Component/s: C++, Documentation
• Labels: pull-request-available query-engine
• External issue URL: https://github.com/apache/arrow/issues/30242
• Assignee: Weston Pace
• Reporter: Weston Pace
• Created: 12/Nov/21 17:47
• Updated: 11/Jan/23 08:41
• Resolved: 28/Mar/22 13:41

Description

We should document the threading model that the C++ implementation uses (and reference these docs from the python/r docs).

In particular, we can explain the CPU thread pool and the I/O thread pool, the differences between them, and the various controls for configuring these things.

Issue Links

• Blocked: ARROW-14720 [Doc][R] Link to the documented threading model
• links to: GitHub Pull Request #12670