[ARROW-6549] [C++] Switch back to latest jemalloc 5.x

• Type: Wish
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.15.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/22910
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 12/Sep/19 14:14
• Updated: 11/Jan/23 07:47
• Resolved: 17/Sep/19 01:27

Description

In ARROW-6478, we switched back to jemallox 4.x to fix a large performance regression in micro-benchmarks which appeared when bumping the vendored jemalloc version to 5.2.0.

Since then, the issue was discussed with the jemalloc maintainers and we found out that customizing some options allowed regaining all (or most) of the performance on micro-benchmarks with 5.2.x.

Issue Links

• links to: GitHub Pull Request #5365