[SERVER-83811] Add call to gc() in mongos_large_catalogs.js to ensure that garbage collection happens after collection creation Created: 01/Dec/23  Updated: 01/Dec/23  Resolved: 01/Dec/23

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

Type: Bug Priority: Major - P3
Reporter: Wenqin Ye Assignee: Wenqin Ye
Resolution: Declined Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
Operating System: ALL
Sprint: Cluster Scalability 2023-12-11
Participants:
Linked BF Score: 0

 Description   

If the call to gc() is not made after the collections are created, this can cause a bunch of queued up `endSessions` to stall the workload's `findOne` command from completing. This then skews the timing results making it seem like the `findOne` regressed in performance when it in reality it did not.

See https://jira.mongodb.org/browse/BF-29997 for more information.



 Comments   
Comment by Wenqin Ye [ 01/Dec/23 ]

Closed as I realized I need to make perf ticket.

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