[SERVER-81791] Investigate overhead from memory allocations Created: 03/Oct/23  Updated: 25/Jan/24

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

Type: Task Priority: Major - P3
Reporter: Anton Korshunov Assignee: Backlog - Query Optimization
Resolution: Unresolved Votes: 0
Labels: M9
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Query Optimization
Participants:

 Description   

While investigating performance regressions in Bonsai M2 we observed a large amount of memory allocations while optimizing a query. In SERVER-80582 we observed that Bonsai had a significantly higher memory stall rate in a CPU pipeline, which can also indicate that the memory management is too heavy. We should look at this issue further and see what changes may be necessary to fix it.


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