Addess recent performance regressions in mixed workloads (SERVER-74848)

[SERVER-75335] Avoid string copies in _initiateCommand(), version metrics Created: 27/Mar/23  Updated: 29/Oct/23  Resolved: 28/Mar/23

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 7.0.0-rc0

Type: Sub-task Priority: Major - P3
Reporter: Colin Stolley Assignee: Colin Stolley
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Participants:

 Description   

By passing some strings by const reference, we can avoid some string copies in src/mongo/db/stats/api_version_metrics.cpp and src/mongo/db/stats/api_version_metrics.h .

Likewise, in _initiateCommand() we can avoid some string copies during lookups by using a StringDataSet instead of a StringMap. See src/mongo/db/service_entry_point_common.cpp



 Comments   
Comment by Githook User [ 28/Mar/23 ]

Author:

{'name': 'Colin Stolley', 'email': 'ccstolley@github.com', 'username': 'ccstolley'}

Message: SERVER-75335: Avoid string copies in _initiateCommand(), version metrics
Branch: master
https://github.com/mongodb/mongo/commit/a70c1e051d0ea7c2aa247b8ceaaa49e297ed0068

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