[SERVER-81891] Investigate aggregate_expressions regressions with query stats Created: 05/Oct/23  Updated: 27/Oct/23  Resolved: 11/Oct/23

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

Type: Task Priority: Major - P3
Reporter: Will Buerger Assignee: Will Buerger
Resolution: Works as Designed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
is depended on by SERVER-85082 M2 Performance Report Closed
Assigned Teams:
Query Integration
Sprint: QI 2023-10-16
Participants:

 Description   

The query stats perf overview dashboard's "Important Regression Details" chart shows a plethora of regressions in the "aggregate_expressions" genny workload, across a variety of pipeline shapes. Investigate those regressions to see if we can find any useful perf improvement or explanation


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