[SOLR-7239] StatsComponent perf improvement for min, max, and situations where all stats disabled

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.1, 6.0
• Assignee: Chris M. Hostetter
• Reporter: Chris M. Hostetter
• Created: 12/Mar/15 19:17
• Updated: 09/May/16 18:52
• Resolved: 12/Mar/15 21:18

Description

as mentioned in SOLR-6349, when i started doing perf testing of requesting individual stats, i noticed that min (and it turns out max) were slower to compute then more complex stats like sum & mean.

While investigating, i realized that we can also optimize the case where a stats.field param is specified, but no stats are computed for example: stats.field=

{!min=$doMin}

fieldname&doMin=false

Issue Links

• relates to: SOLR-6349 LocalParams for enabling/disabling individual stats