[SERVER-22407] 7% performance regression in count for mongo-perf Commands.CountsIntIDRange Created: 01/Feb/16  Updated: 16/Mar/16  Resolved: 22/Feb/16

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: 3.3.2
Fix Version/s: 3.3.3

Type: Bug Priority: Major - P3
Reporter: David Daly Assignee: David Storch
Resolution: Done Votes: 0
Labels: mpreg
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
is related to SERVER-22133 COUNT_SCAN plans are not generated pr... Closed
Backwards Compatibility: Fully Compatible
Operating System: ALL
Sprint: Query 10 (02/22/16), Query 11 (03/14/16)
Participants:

 Description   

Mongo-perf regression tests show an approximately 7% performance regression in the Commands.CounsIntIDRange test around commit dac2f722f8 commit from SERVER-22133.



 Comments   
Comment by Githook User [ 22/Feb/16 ]

Author:

{u'username': u'dstorch', u'name': u'David Storch', u'email': u'david.storch@10gen.com'}

Message: SERVER-22407 make COUNT_SCAN return RID_AND_OBJ instead of OWNED_OBJ

Fixes most of a 7% perf regression for COUNT_SCAN plans.
Branch: master
https://github.com/mongodb/mongo/commit/d8ee6353312a5639ae56454be62066d602eff818

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