[ARROW-3055] [C++] Use byte pop counts to bypass bit checking in some cases in BitmapReader classes

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/19414
• Assignee: Unassigned
• Reporter: Wes McKinney
• Created: 14/Aug/18 19:14
• Updated: 11/Jan/23 07:24
• Resolved: 06/Feb/19 14:52

Description

When performing a scan of a bitmap, skipping bit checking math could improve performance, but we would need to investigate