[SERVER-37593] Make wildcard index multikey path set retrieval more efficient Created: 12/Oct/18  Updated: 29/Oct/23  Resolved: 02/Nov/18

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 4.1.5

Type: Task Priority: Major - P3
Reporter: James Wahlin Assignee: James Wahlin
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Attachments: File perf-100-mulitkey-paths.svg    
Issue Links:
Related
Backwards Compatibility: Fully Compatible
Sprint: Query 2018-10-22, Query 2018-11-05
Participants:

 Comments   
Comment by Githook User [ 02/Nov/18 ]

Author:

{'name': 'James Wahlin', 'email': 'james@mongodb.com', 'username': 'jameswahlin'}

Message: SERVER-37593 Make wildcard index multikey path set retrieval more efficient
Branch: master
https://github.com/mongodb/mongo/commit/63317488e39d1eda2760f6e22654dcbffba152e3

Comment by James Wahlin [ 12/Oct/18 ]

See the call to WildcardAccessMethod::getMultikeyPathSet() in perf-100-mulitkey-paths.svg for an example where we are spending roughly 30% of find command CPU time retrieving these paths.

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