[ARROW-3320] [C++] Improve float parsing performance

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.10.0
• Fix Version/s: 0.11.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/19655
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 24/Sep/18 12:41
• Updated: 11/Jan/23 07:26
• Resolved: 28/Sep/18 15:42

Description

According to the number-parsing-benchmark, parsing integers from strings currently runs at around ~1.6M items/sec. (on Ubuntu 18.04). We should be able to do better. This will be important for CSV parsing performance.

Issue Links

• links to: GitHub Pull Request #2625