[SERVER-82971] Simple8b block sum Created: 08/Nov/23  Updated: 30/Nov/23  Resolved: 30/Nov/23

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 7.3.0-rc0

Type: Task Priority: Major - P3
Reporter: Henrik Edin Assignee: Henrik Edin
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Sprint: Execution Team 2023-11-27, Execution Team 2023-12-11
Participants:

 Description   

Implement a function to calculate the sum of all slots from a buffer of multiple simple8b blocks



 Comments   
Comment by Githook User [ 30/Nov/23 ]

Author:

{'name': 'Henrik Edin', 'email': 'henrik.edin@mongodb.com', 'username': 'henrikedin'}

Message: SERVER-82971 Implement optimized block-based simple8b sum

This is significantly faster than the previous implementation.
The block-based sum will be used to efficiently calculate the delta for the last element in a BSONColumn.
Branch: master
https://github.com/mongodb/mongo/commit/20d0dd80d455a2880dd493f1cefd497cd7524a19

Generated at Thu Feb 08 06:50:53 UTC 2024 using Jira 9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66.