[SOLR-9837] Performance regression of numeric field uninversion time

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 7.0
• Fix Version/s: 7.0
• Assignee: Yonik Seeley
• Reporter: Yonik Seeley
• Created: 07/Dec/16 21:33
• Updated: 09/Dec/16 21:08
• Resolved: 08/Dec/16 23:30

Description

Somehow related to LUCENE-7407, after the transition, the uninvert time of numeric fields has gone up substantially. I haven't tested all field types yet, just integer fields, which show a 55% performance regression for the initial uninvert time.

This was tested with a numeric field of cardinality 1M on a 10M doc index.

q=id:1&sort=my_numeric_field desc

Issue Links

• relates to: LUCENE-7407 Explore switching doc values to an iterator API